def interview_with_person_x():
from query.models import LabeledCommercial, FaceIdentity
from rekall.video_interval_collection import VideoIntervalCollection
from rekall.temporal_predicates import before, after, overlaps
from rekall.logical_predicates import or_pred
from esper.rekall import intrvllists_to_result
# Get list of sandbox video IDs
sandbox_videos = [
row.video_id
for row in LabeledCommercial.objects.distinct('video_id')
]
guest_name = "bernie sanders"
# Load hosts and instances of guest from SQL
identities = FaceIdentity.objects.filter(face__shot__video_id__in=sandbox_videos)
hosts_qs = identities.filter(face__is_host=True)
guest_qs = identities.filter(identity__name=guest_name).filter(probability__gt=0.7)
# Put bounding boxes in SQL
hosts = VideoIntervalCollection.from_django_qs(
hosts_qs.annotate(video_id=F("face__shot__video_id"),
min_frame=F("face__shot__min_frame"),
max_frame=F("face__shot__max_frame"))
)
guest = VideoIntervalCollection.from_django_qs(
guest_qs.annotate(video_id=F("face__shot__video_id"),
min_frame=F("face__shot__min_frame"),
max_frame=F("face__shot__max_frame"))
)
# Get all shots where the guest and a host are on screen together
guest_with_host = guest.overlaps(hosts).coalesce()
# This temporal predicate defines A overlaps with B, or A before by less than 10 frames,
# or A after B by less than 10 frames
overlaps_before_or_after_pred = or_pred(
or_pred(overlaps(), before(max_dist=10), arity=2),
after(max_dist=10), arity=2)
# This code finds sequences of:
# guest with host overlaps/before/after host OR
# guest with host overlaps/before/after guest
interview_candidates = guest_with_host \
.merge(hosts, predicate=overlaps_before_or_after_pred) \
.set_union(guest_with_host.merge(
guest, predicate=overlaps_before_or_after_pred)) \
.coalesce()
# Sequences may be interrupted by shots where the guest or host don't
# appear, so dilate and coalesce to merge neighboring segments
interviews = interview_candidates \
.dilate(600) \
.coalesce() \
.dilate(-600) \
.filter_length(min_length=1350)
# Return intervals
return intrvllists_to_result(interviews.get_allintervals())
def all_faces_rekall():
from query.models import Face
from rekall.video_interval_collection import VideoIntervalCollection
from rekall.parsers import in_array, bbox_payload_parser
from rekall.merge_ops import payload_plus
from esper.rekall import intrvllists_to_result_bbox
from esper.stdlib import qs_to_result
video_name = "inception"
# Annotate face rows with start and end frames and the video ID
faces = Face.objects.filter(frame__video__name=video_name).annotate(
min_frame=F('frame__number'),
max_frame=F('frame__number'),
video_id=F('frame__video_id'))
# Materialize all the faces and load them into rekall with bounding box payloads
# Then coalesce them so that all faces in the same frame are in the same interval
# NOTE that this is slow right now since we're loading all faces!
vids = VideoIntervalCollection.from_django_qs(
faces,
with_payload=in_array(
bbox_payload_parser(
VideoIntervalCollection.django_accessor))).coalesce(
payload_merge_op=payload_plus)
# Post-process to display in Esper widget
return intrvllists_to_result_bbox(vids.get_allintervals(),
limit=100,
stride=100)
def consecutive_short_shots():
from query.models import Shot
from rekall.video_interval_collection import VideoIntervalCollection
from rekall.temporal_predicates import meets_before
from esper.rekall import intrvllists_to_result_with_objects
from django.db.models import ExpressionWrapper, FloatField
NUM_SHOTS = 3
MAX_SHOT_DURATION = 0.5
short_shots = VideoIntervalCollection.from_django_qs(
Shot.objects.annotate(duration=ExpressionWrapper(
(F('max_frame') - F('min_frame')) / F('video__fps'),
output_field=FloatField())).filter(
duration__lt=MAX_SHOT_DURATION,
duration__gt=0.,
labeler__name='shot-hsvhist-face').all())
n_shots = short_shots
for n in range(2, NUM_SHOTS + 1):
print('Constructing {} consecutive short shots'.format(n))
n_shots = n_shots.merge(
short_shots, predicate=meets_before(epsilon=1),
working_window=1).coalesce().filter_length(min_length=1)
print('There are {} videos with {} consecutive short shots'.format(
len(n_shots.get_allintervals().keys()), n))
return intrvllists_to_result_with_objects(n_shots,
lambda a, b: [],
limit=100,
stride=1)
def get_caption_intrvlcol(phrase, video_ids=None):
results = phrase_search(phrase, video_ids)
if video_ids == None:
videos = {v.id: v for v in Video.objects.all()}
else:
videos = {
v.id: v
for v in Video.objects.filter(id__in=video_ids).all()
}
def convert_time(k, t):
return int(t * videos[k].fps)
flattened = [(doc.id, convert_time(doc.id,
p.start), convert_time(doc.id, p.end))
for doc in results for p in doc.postings]
phrase_intrvllists = {}
for video_id, t1, t2 in flattened:
if video_id in phrase_intrvllists:
phrase_intrvllists[video_id].append((t1, t2, 0))
else:
phrase_intrvllists[video_id] = [(t1, t2, 0)]
for video_id, intrvllist in phrase_intrvllists.items():
phrase_intrvllists[video_id] = IntervalList(intrvllist)
phrase_intrvlcol = VideoIntervalCollection(phrase_intrvllists)
print('Get {} intervals for phrase \"{}\"'.format(
count_intervals(phrase_intrvlcol), phrase))
return phrase_intrvlcol
def faces_with_gender():
from query.models import FaceGender
from rekall.video_interval_collection import VideoIntervalCollection
from rekall.parsers import in_array, bbox_payload_parser, merge_dict_parsers, dict_payload_parser
from rekall.merge_ops import payload_plus
from esper.rekall import intrvllists_to_result_bbox
VIDEO_NAME_CONTAINS = "harry potter"
# Annotate face rows with start and end frames and the video ID
faces_with_gender = FaceGender.objects.annotate(
min_frame=F('face__frame__number'),
max_frame=F('face__frame__number'),
video_id=F('face__frame__video_id'),
bbox_x1=F('face__bbox_x1'),
bbox_y1=F('face__bbox_y1'),
bbox_x2=F('face__bbox_x2'),
bbox_y2=F('face__bbox_y2'),
gender_name=F('gender__name')).filter(
face__frame__video__name__contains=VIDEO_NAME_CONTAINS)
faces = VideoIntervalCollection.from_django_qs(
faces_with_gender,
with_payload=in_array(
merge_dict_parsers([
bbox_payload_parser(VideoIntervalCollection.django_accessor),
dict_payload_parser(VideoIntervalCollection.django_accessor,
{'gender': 'gender_name'})
]))).coalesce(payload_merge_op=payload_plus)
return intrvllists_to_result_bbox(faces.get_allintervals(),
limit=100,
stride=1000)
def three_people():
from query.models import Face
from rekall.video_interval_collection import VideoIntervalCollection
from rekall.parsers import in_array, bbox_payload_parser
from rekall.merge_ops import payload_plus
from esper.rekall import intrvllists_to_result_bbox
from rekall.payload_predicates import payload_satisfies
from rekall.spatial_predicates import scene_graph
from rekall.bbox_predicates import height_at_least, left_of, same_value
MIN_FACE_HEIGHT = 0.3
EPSILON = 0.05
# Annotate face rows with start and end frames and the video ID
faces = Face.objects.annotate(min_frame=F('frame__number'),
max_frame=F('frame__number'),
video_id=F('frame__video_id'))
# Materialize all the faces and load them into rekall with bounding box payloads
# Then coalesce them so that all faces in the same frame are in the same interval
# NOTE that this is slow right now since we're loading all faces!
face_lists = VideoIntervalCollection.from_django_qs(
faces,
with_payload=in_array(
bbox_payload_parser(
VideoIntervalCollection.django_accessor))).coalesce(
payload_merge_op=payload_plus)
three_people_scene_graph = {
'nodes': [{
'name': 'face1',
'predicates': [height_at_least(MIN_FACE_HEIGHT)]
}, {
'name': 'face2',
'predicates': [height_at_least(MIN_FACE_HEIGHT)]
}, {
'name': 'face3',
'predicates': [height_at_least(MIN_FACE_HEIGHT)]
}],
'edges': [{
'start': 'face1',
'end': 'face2',
'predicates': [left_of(),
same_value('y1', epsilon=EPSILON)]
}, {
'start': 'face2',
'end': 'face3',
'predicates': [left_of(),
same_value('y1', epsilon=EPSILON)]
}]
}
three_people = face_lists.filter(
payload_satisfies(scene_graph(three_people_scene_graph, exact=True)))
# Post-process to display in Esper widget
return intrvllists_to_result_bbox(three_people.get_allintervals(),
limit=100,
stride=100)
def intrvlcol_second2frame(intrvlcol):
intrvllists_frame = {}
for video_id, intrvllist in intrvlcol.get_allintervals().items():
video = Video.objects.filter(id=video_id)[0]
fps = video.fps
intrvllists_frame[video_id] = IntervalList([(int(i.start * fps), int(i.end * fps), i.payload) \
for i in intrvllist.get_intervals()] )
return VideoIntervalCollection(intrvllists_frame)
def man_woman_up_close():
from query.models import FaceGender
from rekall.video_interval_collection import VideoIntervalCollection
from rekall.parsers import in_array, bbox_payload_parser, merge_dict_parsers, dict_payload_parser
from rekall.merge_ops import payload_plus
from esper.rekall import intrvllists_to_result_bbox
from rekall.payload_predicates import payload_satisfies
from rekall.spatial_predicates import scene_graph
from rekall.bbox_predicates import height_at_least
MIN_FACE_CONFIDENCE = 0.95
MIN_GENDER_CONFIDENCE = 0.95
MIN_FACE_HEIGHT = 0.6
# Annotate face rows with start and end frames and the video ID
faces_with_gender= FaceGender.objects.filter(face__frame__video__name=video_name).annotate(
min_frame=F('face__frame__number'),
max_frame=F('face__frame__number'),
video_id=F('face__frame__video_id'),
bbox_x1=F('face__bbox_x1'),
bbox_y1=F('face__bbox_y1'),
bbox_x2=F('face__bbox_x2'),
bbox_y2=F('face__bbox_y2'),
gender_name=F('gender__name'),
face_probability=F('face__probability'))
faces = VideoIntervalCollection.from_django_qs(
faces_with_gender,
with_payload=in_array(merge_dict_parsers([
bbox_payload_parser(VideoIntervalCollection.django_accessor),
dict_payload_parser(VideoIntervalCollection.django_accessor, { 'gender': 'gender_name' }),
dict_payload_parser(VideoIntervalCollection.django_accessor, { 'gender_probability': 'probability' }),
dict_payload_parser(VideoIntervalCollection.django_accessor, { 'face_probability': 'face_probability' })
]))
).coalesce(payload_merge_op=payload_plus)
graph = {
'nodes': [
{ 'name': 'face_male', 'predicates': [
height_at_least(MIN_FACE_HEIGHT),
lambda payload: payload['gender'] is 'M',
lambda payload: payload['face_probability'] > MIN_FACE_CONFIDENCE,
lambda payload: payload['gender_probability'] > MIN_GENDER_CONFIDENCE
] },
{ 'name': 'face_female', 'predicates': [
height_at_least(MIN_FACE_HEIGHT),
lambda payload: payload['gender'] is 'F',
lambda payload: payload['face_probability'] > MIN_FACE_CONFIDENCE,
lambda payload: payload['gender_probability'] > MIN_GENDER_CONFIDENCE
] },
],
'edges': []
}
mf_up_close = faces.filter(payload_satisfies(
scene_graph(graph, exact=True)))
return intrvllists_to_result_bbox(mf_up_close.get_allintervals(), limit=100, stride=100)
def label_videos_with_shot_scale(video_ids):
faces = Face.objects.annotate(
min_frame=F('frame__number'),
max_frame=F('frame__number'),
video_id=F('frame__video__id')).filter(video_id__in=video_ids)
poses = PoseMeta.objects.annotate(
min_frame=F('frame__number'),
max_frame=F('frame__number'),
video_id=F('frame__video__id')).filter(video_id__in=video_ids)
face_frames = VideoIntervalCollection.from_django_qs(
faces,
with_payload=rk.parsers.merge_dict_parsers([
with_face(),
with_named_empty_list('pose'),
rk.parsers.dict_payload_parser(
VideoIntervalCollection.django_accessor,
{'frame_id': 'frame_id'})
]))
pose_frames = VideoIntervalCollection.from_django_qs(
poses,
with_payload=rk.parsers.merge_dict_parsers([
with_pose(),
with_named_empty_list('face'),
rk.parsers.dict_payload_parser(
VideoIntervalCollection.django_accessor,
{'frame_id': 'frame_id'})
]))
faces_with_pose = face_frames.set_union(pose_frames).coalesce(
merge_named_payload({
'pose': rk.merge_ops.payload_plus,
'face': rk.merge_ops.payload_plus,
'frame_id': rk.merge_ops.payload_first
}))
frames_with_shot_scale = faces_with_pose.map(
lambda intrvl: (intrvl.start, intrvl.end, {
'pose': intrvl.payload['pose'],
'face': intrvl.payload['face'],
'frame_id': intrvl.payload['frame_id'],
'shot_scale': payload_to_shot_scale(intrvl.payload)
}))
return frames_with_shot_scale
def get_commercial_intrvlcol(video_ids=None, granularity='frame'):
if video_ids is None:
commercial_qs = Commercial.objects.all()
else:
commercial_qs = Commercial.objects.filter(video_id__in=video_ids)
commercial_intrvllists = qs_to_intrvllists(
commercial_qs.annotate(video_id=F("video_id")))
commercial = VideoIntervalCollection(commercial_intrvllists)
if granularity == 'second':
commercial = intrvlcol_frame2second(commercial)
return commercial
def manual_shots_rekall():
from query.models import Shot, Labeler
from rekall.video_interval_collection import VideoIntervalCollection
from esper.rekall import intrvllists_to_result
from esper.stdlib import qs_to_result
shots_qs = Shot.objects.filter(
labeler__name__contains='manual')
shots = VideoIntervalCollection.from_django_qs(shots_qs)
return intrvllists_to_result_with_objects(shots.get_allintervals())
def panels_rekall():
from query.models import LabeledCommercial, Face
from rekall.video_interval_collection import VideoIntervalCollection
from rekall.parsers import in_array, bbox_payload_parser
from rekall.merge_ops import payload_plus
from rekall.bbox_predicates import height_at_least, same_value, left_of
from rekall.spatial_predicates import scene_graph
from rekall.payload_predicates import payload_satisfies
from esper.rekall import intrvllists_to_result_bbox
# Get list of sandbox video IDs
sandbox_videos = [
row.video_id
for row in LabeledCommercial.objects.distinct('video_id')
]
faces_qs = Face.objects.filter(shot__video_id__in=sandbox_videos).annotate(
video_id=F("shot__video_id"),
min_frame=F("shot__min_frame"),
max_frame=F("shot__max_frame")
)
# One interval for each face
faces = VideoIntervalCollection.from_django_qs(
faces_qs,
with_payload=in_array(
bbox_payload_parser(
VideoIntervalCollection.django_accessor)))
# Merge shots
faces = faces.coalesce(payload_merge_op=payload_plus)
# Define a scene graph for things that look like panels
three_faces_scene_graph = {
'nodes': [
{ 'name': 'face1', 'predicates': [ height_at_least(0.3) ] },
{ 'name': 'face2', 'predicates': [ height_at_least(0.3) ] },
{ 'name': 'face3', 'predicates': [ height_at_least(0.3) ] }
],
'edges': [
{ 'start': 'face1', 'end': 'face2',
'predicates': [ same_value('y1', epsilon=0.05), left_of() ] },
{ 'start': 'face2', 'end': 'face3',
'predicates': [ same_value('y1', epsilon=0.05), left_of() ] },
]
}
panels = faces.filter(payload_satisfies(
scene_graph(three_faces_scene_graph, exact=True)
))
return intrvllists_to_result_bbox(panels.get_allintervals())
def cinematic_shots_rekall():
from query.models import Shot, Labeler
from rekall.video_interval_collection import VideoIntervalCollection
from esper.rekall import intrvllists_to_result_with_objects
from esper.stdlib import qs_to_result
video_ids = [1]
shots_qs = Shot.objects.filter(video_id__in=video_ids, cinematic=True)
shots = VideoIntervalCollection.from_django_qs(shots_qs)
return intrvllists_to_result_with_objects(shots.get_allintervals(),
lambda payload, video: [])
def split_intrvlcol(intrvlcol, seg_length):
intrvllists_split = {}
for video_id, intrvllist in intrvlcol.get_allintervals().items():
intervals_split = []
for i in intrvllist.get_intervals():
duration = i.end - i.start
start = i.start
while duration > 0:
if duration > seg_length:
intervals_split.append((start, start + seg_length, i.payload))
duration -= seg_length
start += seg_length
else:
intervals_split.append((start, start + duration, i.payload))
duration = 0
intrvllists_split[video_id] = IntervalList(intervals_split)
return VideoIntervalCollection(intrvllists_split)
def frames_with_character_x():
from query.models import FaceCharacterActor
from rekall.video_interval_collection import VideoIntervalCollection
from rekall.parsers import in_array, bbox_payload_parser, merge_dict_parsers, dict_payload_parser
from rekall.merge_ops import payload_plus
from rekall.payload_predicates import payload_satisfies
from rekall.spatial_predicates import scene_graph
from esper.rekall import intrvllists_to_result_bbox
character_name = "harry potter"
# Annotate face rows with start and end frames and the video ID
faces_with_character_actor_qs = FaceCharacterActor.objects.annotate(
min_frame=F('face__frame__number'),
max_frame=F('face__frame__number'),
video_id=F('face__frame__video_id'),
bbox_x1=F('face__bbox_x1'),
bbox_y1=F('face__bbox_y1'),
bbox_x2=F('face__bbox_x2'),
bbox_y2=F('face__bbox_y2'),
character_name=F('characteractor__character__name'))
faces_with_identity = VideoIntervalCollection.from_django_qs(
faces_with_character_actor_qs,
with_payload=in_array(
merge_dict_parsers([
bbox_payload_parser(VideoIntervalCollection.django_accessor),
dict_payload_parser(VideoIntervalCollection.django_accessor,
{'character': 'character_name'}),
]))).coalesce(payload_merge_op=payload_plus)
faces_with_actor = faces_with_identity.filter(
payload_satisfies(
scene_graph({
'nodes': [{
'name':
'face1',
'predicates': [lambda f: f['character'] == character_name]
}],
'edges': []
})))
return intrvllists_to_result_bbox(faces_with_actor.get_allintervals(),
limit=100,
stride=1000)
def faces_from_poses_rekall():
from query.models import Pose
from rekall.video_interval_collection import VideoIntervalCollection
from rekall.parsers import in_array, bbox_payload_parser
from rekall.merge_ops import payload_plus
from esper.rekall import intrvllists_to_result_bbox
from esper.stdlib import qs_to_result
# Annotate pose rows with start and end frames and the video ID
poses = Pose.objects.annotate(min_frame=F('frame__number'),
max_frame=F('frame__number'),
video_id=F('frame__video_id'))
# Parse the pose keypoints and get a bounding box around the face
def get_face_bbox(pose):
pose_keypoints = pose.pose_keypoints()
face_indices = [
Pose.Nose, Pose.Neck, Pose.REye, Pose.LEye, Pose.REar, Pose.LEar
]
x_vals = [
pose_keypoints[index][0] for index in face_indices
if pose_keypoints[index][2] is not 0.0
]
y_vals = [
pose_keypoints[index][1] for index in face_indices
if pose_keypoints[index][2] is not 0.0
]
x1 = min(x_vals)
y1 = min(y_vals)
x2 = max(x_vals)
y2 = max(y_vals)
return {'x1': x1, 'y1': y1, 'x2': x2, 'y2': y2}
# Materialize all the faces and load them into rekall with bounding box payloads
# Then coalesce them so that all faces in the same frame are in the same interval
# NOTE that this is slow right now since we're loading all poses!
vids = VideoIntervalCollection.from_django_qs(poses,
with_payload=in_array(get_face_bbox)) \
.coalesce(payload_merge_op=payload_plus)
# Post-process to display in Esper widget
return intrvllists_to_result_bbox(vids.get_allintervals(),
limit=100,
stride=100)
def all_captions():
from esper.captions import get_all_segments
from rekall.video_interval_collection import VideoIntervalCollection
from esper.rekall import intrvllists_to_result_with_objects
video_ids = [1]
# Only aligned captions are in the caption index
results = get_all_segments(video_ids)
caption_results = VideoIntervalCollection({
video_id: [(
word[0] * Video.objects.get(id=video_id).fps, # start frame
word[1] * Video.objects.get(id=video_id).fps, # end frame
word[2]) # payload is the word (string)
for word in words]
for video_id, words in results
})
return intrvllists_to_result_with_objects(caption_results, lambda a, b: [])
def multi_person_one_phrase(phrase, filters={}):
'''
Get all intervals which the phrase is being said
@phrase: input phrase to be searched
@filters:
'with_face': must contain exactly one face
'gender': filter by gender
'limit': number of output intervals
'''
videos = Video.objects.filter(threeyears_dataset=True)
video_ids = [video.id for video in videos]
phrase_intrvlcol = get_caption_intrvlcol(phrase.upper(), video_ids)
def fn(i):
faces = Face.objects.filter(shot__video__id=video_id,
shot__min_frame__lte=i.start,
shot__max_frame__gte=i.end)
# faces = Face.objects.filter(frame__number__gte=i.start, frame__number__lte=i.end)
if len(faces) != 1:
return False
if 'gender' in filters:
faceGender = FaceGender.objects.filter(face__id=faces[0].id)[0]
if faceGender.gender.name != filters['gender']:
return False
return True
if 'with_face' in filters:
print('Filtering with face...')
intrvlcol_withface = {}
for video_id, intrvllist in phrase_intrvlcol.intervals.items():
intrvllist_withface = intrvllist.filter(fn)
if intrvllist_withface.size() > 0:
intrvlcol_withface[video_id] = intrvllist_withface
if 'limit' in filters and len(
intrvlcol_withface) == filters['limit']:
break
phrase_intrvlcol = VideoIntervalCollection(intrvlcol_withface)
# print(len(phrase_intrvlcol))
return intrvlcol2list(phrase_intrvlcol)
def get_numface_intrvlcol(relevant_shots, num_face=1):
faces = Face.objects.filter(shot__in=list(relevant_shots)) \
.annotate(video_id=F('shot__video_id')) \
.annotate(min_frame=F('shot__min_frame')) \
.annotate(max_frame=F('shot__max_frame'))
# Materialize all the faces and load them into rekall with bounding box payloads
# Then coalesce them so that all faces in the same frame are in the same interval
# NOTE that this is slow right now since we're loading all faces!
numface_intrvlcol = VideoIntervalCollection.from_django_qs(
faces,
with_payload=in_array(
bbox_payload_parser(VideoIntervalCollection.django_accessor))
).coalesce(payload_merge_op=payload_plus).filter(payload_satisfies(length_exactly(num_face)))
num_intrvl = 0
for _, intrvllist in numface_intrvlcol.get_allintervals().items():
num_intrvl += intrvllist.size()
print("Get {} relevant {} face intervals".format(num_intrvl, num_face))
return numface_intrvlcol
def all_poses():
from query.models import PoseMeta
from esper.stdlib import pose_to_dict, simple_result
import esper.pose_wrapper as pw
from rekall.video_interval_collection import VideoIntervalCollection
from rekall.parsers import in_array
from rekall.merge_ops import payload_plus
from esper.rekall import intrvllists_to_result_with_objects
STRIDE = 1000
LIMIT = 100
# PoseMeta is a table that contains pose ID, labeler, and a pointer to
# a Frame.
# NOTE that PoseMeta ID's have NO RELATION to Pose ID's.
pose_meta_qs = PoseMeta.objects.annotate(min_frame=F('frame__number'),
max_frame=F('frame__number'),
video_id=F('frame__video_id'))
# Use coalesce to get a list of frames we want
# We store Video ID and frame number in the payload
frames = VideoIntervalCollection.from_django_qs(
pose_meta_qs[:LIMIT * STRIDE:STRIDE],
with_payload=lambda pose_meta_obj:
(pose_meta_obj.video_id, pose_meta_obj.min_frame)).coalesce()
# pose_wrapper.get takes in a PoseMeta queryset or list of PoseMeta objects
# and returns a list of PoseWrapper objects.
poses = frames.map(lambda interval: (
interval.start, interval.end,
pw.get(
pose_meta_qs.filter(video_id=interval.payload[0],
min_frame=interval.payload[1]).all())))
# We use pose_to_dict to draw PoseWrapper objects.
return intrvllists_to_result_with_objects(
poses, lambda pose_wrappers, video_id:
[pose_to_dict(wrapper) for wrapper in pose_wrappers])
def all_face_landmarks():
from query.models import Face
from esper.stdlib import face_landmarks_to_dict, simple_result
import esper.face_landmarks_wrapper as flw
from rekall.video_interval_collection import VideoIntervalCollection
from rekall.parsers import in_array
from rekall.merge_ops import payload_plus
from esper.rekall import intrvllists_to_result_with_objects
STRIDE = 1000
LIMIT = 100
# Face landmarks are keyed by Face ID's.
faces_qs = Face.objects.annotate(min_frame=F('frame__number'),
max_frame=F('frame__number'),
video_id=F('frame__video_id'))
# Use coalesce to get a list of frames we want
# We store Video ID and frame number in the payload
frames = VideoIntervalCollection.from_django_qs(
faces_qs[:LIMIT * STRIDE:STRIDE],
with_payload=lambda face_obj:
(face_obj.video_id, face_obj.min_frame)).coalesce()
# face_landmarks_wrapper.get takes in a Face queryset or list of Face
# objects and returns a list of LandmarksWrapper objects.
landmarks = frames.map(lambda interval: (
interval.start, interval.end,
flw.get(
faces_qs.filter(video_id=interval.payload[0],
min_frame=interval.payload[1]).all())))
# We use face_landmarks_to_dict to draw LandmarksWrapper objects.
return intrvllists_to_result_with_objects(
landmarks, lambda landmarks_wrappers, video_id:
[face_landmarks_to_dict(wrapper) for wrapper in landmarks_wrappers])
def caption_search():
from esper.captions import topic_search
from rekall.video_interval_collection import VideoIntervalCollection
from esper.rekall import intrvllists_to_result_with_objects
phrases = [
'may the Force be with you', 'may the force be with you',
'May the Force be with you', 'May the force be with you'
]
results = topic_search(
phrases,
window_size=0,
video_ids=[
vid.id
for vid in Video.objects.filter(name__contains="star wars").all()
])
caption_results = VideoIntervalCollection({
r.id: [((p.start * Video.objects.get(id=r.id).fps),
(p.end * Video.objects.get(id=r.id).fps), 0)
for p in r.postings]
for r in results
})
return intrvllists_to_result_with_objects(caption_results, lambda a, b: [])
def get_person_intrvlcol(person_name, **kwargs):
# if video_ids is None:
# videos = Video.objects.filter(threeyears_dataset=True)
# video_ids = [video.id for video in videos]
# faceIDs = FaceIdentity.objects \
# .annotate(video_id=F("face__frame__video_id")) \
# .annotate(shot_boundary=F("face__frame__shot_boundary"))
# if not video_ids is None:
# faceIDs = faceIDs.filter(video_id__in=video_ids, shot_boundary=True) \
if kwargs['labeler'] == 'old': # old labeler model
faceIDs = FaceIdentity.objects \
.exclude(face__shot__isnull=True) \
.filter(Q(labeler__name='face-identity-converted:'+person_name.lower()) |
Q(labeler__name='face-identity:'+person_name.lower()) ) \
.filter(probability__gt=0.9) \
.annotate(height=F("face__bbox_y2") - F("face__bbox_y1"))
if 'large_face' in kwargs:
faceIDs = faceIDs.filter(height__gte=0.3)
person_intrvllists = qs_to_intrvllists(
faceIDs.annotate(video_id=F("face__shot__video_id"))
.annotate(shot_id=F("face__shot_id"))
.annotate(min_frame=F("face__shot__min_frame"))
.annotate(max_frame=F("face__shot__max_frame")),\
schema={
'start': 'min_frame',
'end': 'max_frame',
'payload': 'shot_id'
})
person_intrvlcol = VideoIntervalCollection(person_intrvllists)
else: # new labeler model
faceIDs = FaceIdentity.objects \
.filter(face__frame__shot_boundary=False) \
.filter(Q(labeler__name='face-identity-converted:'+person_name.lower()) |
Q(labeler__name='face-identity:'+person_name.lower()) ) \
.filter(probability__gt=0.9) \
.annotate(height=F("face__bbox_y2") - F("face__bbox_y1"))
if 'large_face' in kwargs:
faceIDs = faceIDs.filter(height__gte=0.3)
person_intrvllists_raw = qs_to_intrvllists(
faceIDs.annotate(video_id=F("face__frame__video_id"))
.annotate(frame_id=F("face__frame__number"))
.annotate(min_frame=F("face__frame__number"))
.annotate(max_frame=F("face__frame__number") + 1),\
schema={
'start': 'min_frame',
'end': 'max_frame',
'payload': 'frame_id'
})
# dilate and coalesce
person_intrvllists = {}
for video_id, intrvllist in person_intrvllists_raw.items():
video = Video.objects.filter(id=video_id)[0]
person_intrvllists[video_id] = intrvllist.dilate(
int(video.fps * 1.6)).coalesce()
person_intrvlcol = VideoIntervalCollection(person_intrvllists)
print("Get {} intervals for person {}".format(
count_intervals(person_intrvlcol), person_name))
return person_intrvlcol
def shot_reverse_shot_complex():
from query.models import Face, Shot
from rekall.temporal_predicates import overlaps
from rekall.merge_ops import payload_second, payload_plus
from rekall.video_interval_collection import VideoIntervalCollection
from rekall.interval_list import Interval, IntervalList
from rekall.parsers import in_array, bbox_payload_parser
from rekall.payload_predicates import payload_satisfies
from rekall.list_predicates import length_at_most
from rekall.logical_predicates import and_pred
from rekall.spatial_predicates import scene_graph, make_region
from rekall.temporal_predicates import before, after
from rekall.bbox_predicates import height_at_least
from esper.rekall import intrvllists_to_result_with_objects
VIDEO_NAME = 'godfather part iii'
MAX_FACE_MOVEMENT = 0.15
MIN_FACE_HEIGHT = 0.2
MAX_FACES_ON_SCREEN = 4
RIGHT_HALF_MIN_X = 0.33
LEFT_HALF_MAX_X = 0.66
SHOTS_LABELER_ID = 64
# faces are sampled every 12 frames
SAMPLING_RATE = 12
# Annotate face rows with start and end frames and the video ID
faces = Face.objects.annotate(min_frame=F('frame__number'),
max_frame=F('frame__number'),
video_id=F('frame__video_id')).filter(
frame__video__name__contains=VIDEO_NAME)
shots = VideoIntervalCollection.from_django_qs(Shot.objects.filter(
video__name__contains=VIDEO_NAME, labeler_id=SHOTS_LABELER_ID),
with_payload=lambda obj: [])
# vids are all faces for each frame
vids = VideoIntervalCollection.from_django_qs(
faces.filter(probability__gte=0.99),
with_payload=in_array(
bbox_payload_parser(
VideoIntervalCollection.django_accessor))).coalesce(
payload_merge_op=payload_plus)
right_half = make_region(RIGHT_HALF_MIN_X, 0.0, 1.0, 1.0)
left_half = make_region(0.0, 0.0, LEFT_HALF_MAX_X, 1.0)
graph = {
'nodes': [{
'name': 'face',
'predicates': [height_at_least(MIN_FACE_HEIGHT)]
}],
'edges': []
}
faces_on_right = vids.filter(
and_pred(payload_satisfies(length_at_most(MAX_FACES_ON_SCREEN)),
payload_satisfies(scene_graph(graph, region=right_half))))
faces_on_left = vids.filter(
and_pred(payload_satisfies(length_at_most(MAX_FACES_ON_SCREEN)),
payload_satisfies(scene_graph(graph, region=left_half))))
def wrap_list(intvl):
intvl.payload = [intvl.payload]
return intvl
def get_height(box):
return box['y2'] - box['y1']
def get_center(box):
return ((box['x1'] + box['x2']) / 2, (box['y1'] + box['y2']) / 2)
def get_distance(pt1, pt2):
return np.sqrt((pt1[0] - pt2[0])**2 + (pt1[1] - pt2[1])**2)
def find_highest_box(boxes):
if len(boxes) == 0:
return None
result = boxes[0]
best = get_height(result)
for i in range(1, len(boxes)):
h = get_height(boxes[i])
if h > best:
best = h
result = boxes[i]
return result
def take_highest_in_frame(intvl):
result = []
for faces_in_frame in intvl.payload:
largest = find_highest_box(faces_in_frame)
if largest is not None:
result.append(largest)
intvl.payload = result
return intvl
# Check if displacement of box center between frames are within `dist`
def inter_frame_movement_less_than(dist):
def check(boxes):
for b1, b2 in zip(boxes, boxes[1:]):
if get_distance(get_center(b1), get_center(b2)) > dist:
return False
return True
return check
# Payload is a list, each element is a list of faces for a frame
shots_with_face_on_right = shots.merge(
faces_on_right, predicate=overlaps(),
payload_merge_op=payload_second).map(wrap_list).coalesce(
payload_merge_op=payload_plus).map(take_highest_in_frame).filter(
payload_satisfies(
inter_frame_movement_less_than(MAX_FACE_MOVEMENT)))
shots_with_face_on_left = shots.merge(
faces_on_left, predicate=overlaps(),
payload_merge_op=payload_second).map(wrap_list).coalesce(
payload_merge_op=payload_plus).map(take_highest_in_frame).filter(
payload_satisfies(
inter_frame_movement_less_than(MAX_FACE_MOVEMENT)))
# Right-Left-Right sequences
shot_reverse_shot_1 = shots_with_face_on_right.merge(
shots_with_face_on_left,
predicate=before(max_dist=1)).merge(shots_with_face_on_right,
predicate=before(max_dist=1))
# Left-Right-Left sequences
shot_reverse_shot_2 = shots_with_face_on_left.merge(
shots_with_face_on_right,
predicate=before(max_dist=1)).merge(shots_with_face_on_left,
predicate=before(max_dist=1))
shot_reverse_shot = shot_reverse_shot_1.set_union(
shot_reverse_shot_2).coalesce()
result = intrvllists_to_result_with_objects(
shot_reverse_shot.get_allintervals(), payload_to_objs=lambda p, v: [])
return result
# CONTINUE_PATH = '/app/notebooks/learning/models/deepsbd_resnet_train_on_40000_min_weak/fold1_270000_iteration.pth'
device = torch.device("cuda:0" if torch.cuda.is_available() else "cpu")
print('Initialized constants')
# load folds from disk
with open(FOLDS_PATH, 'rb') as f:
folds = pickle.load(f)
# Load DeepSBD datasets for each fold. This is used for testing.
deepsbd_datasets_weak_testing = []
for fold in folds:
shots_in_fold_qs = Shot.objects.filter(labeler__name__contains='manual',
video_id__in=fold)
shots_in_fold = VideoIntervalCollection.from_django_qs(shots_in_fold_qs)
data = movies_deepsbd_data.DeepSBDDataset(shots_in_fold,
verbose=True,
preload=False,
logits=True,
local_path=LOCAL_PATH)
deepsbd_datasets_weak_testing.append(data)
print('Loaded test data')
# load weak labels
if TRAINING_SET != 'ground_truth':
with open(WEAK_LABELS_PATH, 'rb') as f:
weak_labels_windows = np.load(f)
def __init__(self,
shots,
window_size=16,
stride=8,
size=128,
verbose=False,
preload=True,
logits=False,
local_path=None):
"""Constrcutor for ShotDetectionDataset.
Args:
shots: VideoIntervalCollection of all the intervals to get frames from. If the payload is -1,
then the interval is not an actual shot and just needs to be included in the dataset.
"""
self.window_size = window_size
self.preload = preload
self.logits = logits
self.local_path = local_path
self.storehouse_backend = storehouse.StorageBackend.make_from_config(
storehouse.StorageConfig.make_posix_config())
items = set()
frame_nums = {}
shot_boundaries = shots.map(lambda intrvl: (
intrvl.start, intrvl.start, intrvl.payload)).set_union(
shots.map(lambda intrvl:
(intrvl.end + 1, intrvl.end + 1, intrvl.payload))
).coalesce().filter(lambda intrvl: intrvl.payload != -1)
clips = shots.dilate(1).coalesce().dilate(-1).map(lambda intrvl: (
intrvl.start - stride - ((intrvl.start - stride) % stride), intrvl.
end + stride - ((intrvl.end + stride) % stride
), intrvl.payload)).dilate(1).coalesce().dilate(-1)
items_intrvls = {}
for video_id in clips.get_allintervals():
items_intrvls[video_id] = []
for intrvl in clips.get_intervallist(video_id).get_intervals():
items_intrvls[video_id] += [
(f, f + window_size, 0 if not logits else (1, 0, 0))
for f in range(intrvl.start, intrvl.end - stride, stride)
]
items_col = VideoIntervalCollection(items_intrvls)
items_w_boundaries = items_col.filter_against(
shot_boundaries, predicate=during_inv()).map(lambda intrvl: (
intrvl.start, intrvl.end, 2 if not logits else (0, 0, 1)))
items_w_labels = items_col.minus(
items_w_boundaries,
predicate=equal()).set_union(items_w_boundaries)
for video_id in items_w_labels.get_allintervals():
path = Video.objects.get(id=video_id).path
frame_nums[video_id] = set()
for intrvl in items_w_labels.get_intervallist(
video_id).get_intervals():
items.add(
(video_id, intrvl.start, intrvl.end, intrvl.payload, path))
for f in range(intrvl.start, intrvl.end):
frame_nums[video_id].add(f)
self.items = sorted(list(items),
key=lambda item: (item[0], item[1], item[2]))
self.transform = transforms.Compose([
transforms.ToPILImage(),
Scale((128, 128)),
ToTensor(1),
Normalize(get_mean(1), (1, 1, 1))
])
window) > POSITIVE_OUTLIER_THRESHOLD_FLOW_MAGNITUDE * np.std(
window):
positive_boundaries.append(i)
if avg_magnitudes[i] - np.mean(
window) < NEGATIVE_OUTLIER_THRESHOLD_FLOW_MAGNITUDE * np.std(
window):
negative_boundaries.append(i)
return positive_boundaries, negative_boundaries
db = scannerpy.Database()
# Load up all manually annotated shots
shots_qs = Shot.objects.filter(labeler__name__contains='manual')
shots = VideoIntervalCollection.from_django_qs(shots_qs)
shot_video_ids = sorted(list(shots.get_allintervals().keys()))
#videos = list(Video.objects.filter(ignore_film=False).exclude(id__in=shot_video_ids).order_by('id').all())
videos = list(Video.objects.filter(ignore_film=False).order_by('id').all())
frames = [range(0, video.num_frames) for video in videos]
print("Generating weak labels from RGB histograms")
output_directory = '/app/data/shot_detection_weak_labels/rgb_hists_high_pre'
rgb_hists = st.histograms.compute_histograms(
db, videos=[video.for_scannertools() for video in videos], frames=frames)
for video, rgb_hist in tqdm(zip(videos, rgb_hists), total=len(videos)):
pos_bounds, neg_bounds = color_histogram_shot_labels(
rgb_hist.load(), WINDOW_SIZE, POSITIVE_OUTLIER_THRESHOLD_COLOR_HIST,
NEGATIVE_OUTLIER_THRESHOLD_COLOR_HIST)
def shot_reverse_shot():
from query.models import Face
from rekall.video_interval_collection import VideoIntervalCollection
from rekall.parsers import in_array, bbox_payload_parser
from rekall.merge_ops import payload_plus
from esper.rekall import intrvllists_to_result_bbox
from rekall.payload_predicates import payload_satisfies
from rekall.list_predicates import length_at_most
from rekall.logical_predicates import and_pred, or_pred
from rekall.spatial_predicates import scene_graph, make_region
from rekall.temporal_predicates import before, after
from rekall.bbox_predicates import height_at_least
from esper.rekall import intrvllists_to_result, intrvllists_to_result_with_objects, add_intrvllists_to_result
# If True, visualize results in a timeline
TIMELINE_OUTPUT = False
RIGHT_HALF_MIN_X = 0.45
LEFT_HALF_MAX_X = 0.55
MIN_FACE_HEIGHT = 0.4
MAX_FACES_ON_SCREEN = 2
# faces are sampled every 12 frames
SAMPLING_RATE = 12
ONE_SECOND = 24
FOUR_SECONDS = 96
TEN_SECONDS = 240
# Annotate face rows with start and end frames and the video ID
faces = Face.objects.annotate(min_frame=F('frame__number'),
max_frame=F('frame__number'),
video_id=F('frame__video_id'))
right_half = make_region(RIGHT_HALF_MIN_X, 0.0, 1.0, 1.0)
left_half = make_region(0.0, 0.0, LEFT_HALF_MAX_X, 1.0)
graph = {
'nodes': [{
'name': 'face',
'predicates': [height_at_least(MIN_FACE_HEIGHT)]
}],
'edges': []
}
vids = VideoIntervalCollection.from_django_qs(
faces,
with_payload=in_array(
bbox_payload_parser(
VideoIntervalCollection.django_accessor))).coalesce(
payload_merge_op=payload_plus)
# Get sequences where there's a face on the right half of the screen and
# there are at most two faces
faces_on_right = vids.filter(
and_pred(payload_satisfies(length_at_most(MAX_FACES_ON_SCREEN)),
payload_satisfies(scene_graph(
graph, region=right_half)))).dilate(SAMPLING_RATE /
2).coalesce()
# Get sequences where there's a face on the left half of the screen and
# there are at most two faces
faces_on_left = vids.filter(
and_pred(payload_satisfies(length_at_most(MAX_FACES_ON_SCREEN)),
payload_satisfies(scene_graph(
graph,
region=left_half)))).dilate(SAMPLING_RATE / 2).coalesce()
# Sequences where faces on left up to one second before/after faces on left
# Four seconds of buffer time between left-then-right/right-then-left
# segments
# Only keep remaining sequences that last longer than ten seconds
shot_reverse_shot = faces_on_right.merge(
faces_on_left,
predicate=or_pred(
before(max_dist=ONE_SECOND), after(max_dist=ONE_SECOND),
arity=2)).dilate(FOUR_SECONDS).coalesce().dilate(
-1 * FOUR_SECONDS).filter_length(min_length=TEN_SECONDS)
# Post-process to display in Esper widget
if TIMELINE_OUTPUT:
results = intrvllists_to_result(shot_reverse_shot.get_allintervals())
add_intrvllists_to_result(results,
faces_on_left.get_allintervals(),
color='black')
add_intrvllists_to_result(results,
faces_on_right.get_allintervals(),
color='green')
else:
results = intrvllists_to_result_with_objects(
shot_reverse_shot.get_allintervals(), lambda payload, video: [])
return results
# resnet deepSBD pre-trained on Kinetics
deepsbd_resnet_model_no_clipshots = deepsbd_resnet.resnet18(num_classes=3,
sample_size=128,
sample_duration=16)
deepsbd_resnet_model_no_clipshots = deepsbd_resnet_model_no_clipshots.to(
device).train()
if TRAINING_SET in ["kfolds", "ground_truth"]:
# Load DeepSBD datasets for each fold. This is used for testing.
deepsbd_datasets_weak_testing = []
if not SAME_VAL_TEST:
for fold in folds:
shots_in_fold_qs = Shot.objects.filter(
labeler__name__contains='manual', video_id__in=fold)
shots_in_fold = VideoIntervalCollection.from_django_qs(
shots_in_fold_qs)
shots_per_fold.append(shots_in_fold)
data = movies_deepsbd_data.DeepSBDDataset(shots_in_fold,
verbose=True,
preload=False,
logits=True,
local_path=LOCAL_PATH)
deepsbd_datasets_weak_testing.append(data)
else:
with open(VAL_WINDOWS, 'rb') as f:
val_windows_by_video_id = pickle.load(f)
with open(Y_VAL, 'rb') as f:
Y_val = np.load(f)
paths = {
video_id: Video.objects.get(id=video_id).path
def get_person_intrvlcol(person_list=None,
video_ids=None,
probability=0.9,
face_size=None,
stride_face=False,
labeler='new',
exclude_person=False,
granularity='frame',
payload_type='shot_id'):
def identity_filter(person_list):
filter_all = None
for p in person_list:
if labeler == 'new':
filter = Q(labeler__name='face-identity-converted:' +
p) | Q(labeler__name='face-identity:' + p)
else:
filter = Q(labeler__name='face-identity-old:' + p)
if filter_all is None:
filter_all = filter
else:
filter_all = filter_all | filter
return filter_all
if stride_face:
labeler = 'new'
if type(person_list) == str:
person_list = [person_list.lower()]
else:
person_list = [p.lower() for p in person_list]
faceIDs = FaceIdentity.objects \
.filter(probability__gt=probability) \
.annotate(face_size=F("face__bbox_y2") - F("face__bbox_y1")) \
.annotate(video_id=F("face__frame__video_id")) \
if not stride_face:
faceIDs = faceIDs.exclude(face__shot__isnull=True)
else:
faceIDs = faceIDs.filter(face__frame__shot_boundary=False)
if not person_list is None:
if not exclude_person:
faceIDs = faceIDs.filter(identity_filter(person_list))
else:
faceIDs = faceIDs.exclude(identity_filter(person_list))
if not face_size is None:
faceIDs = faceIDs.filter(face_size__gte=face_size)
if not video_ids is None:
faceIDs = faceIDs.filter(video_id__in=video_ids)
if not stride_face:
person_intrvllists = qs_to_intrvllists(
faceIDs.annotate(video_id=F("face__shot__video_id"))
.annotate(shot_id=F("face__shot_id"))
.annotate(min_frame=F("face__shot__min_frame"))
.annotate(max_frame=F("face__shot__max_frame"))
.annotate(faceID_id=F("identity_id")),\
schema={
'start': 'min_frame',
'end': 'max_frame',
'payload': payload_type
})
person_intrvlcol = VideoIntervalCollection(
person_intrvllists).coalesce()
else:
if payload_type == 'shot_id':
payload_type = 'frame_id'
person_intrvllists_raw = qs_to_intrvllists(
faceIDs.annotate(video_id=F("face__frame__video_id"))
.annotate(frame_id=F("face__frame__number"))
.annotate(min_frame=F("face__frame__number"))
.annotate(max_frame=F("face__frame__number") + 1)
.annotate(faceID_id=F("identity_id")),\
schema={
'start': 'min_frame',
'end': 'max_frame',
'payload': payload_type
})
# dilate and coalesce
SAMPLE_RATE = 3
person_intrvllists = {}
for video_id, intrvllist in person_intrvllists_raw.items():
video = Video.objects.filter(id=video_id)[0]
dilation = int(video.fps * SAMPLE_RATE / 2)
person_intrvllists[video_id] = intrvllist.dilate(
dilation).coalesce().dilate(-dilation)
person_intrvlcol = VideoIntervalCollection(person_intrvllists)
if granularity == 'second':
person_intrvlcol = intrvlcol_frame2second(person_intrvlcol)
print("Get {} intervals for person {}".format(
count_intervals(person_intrvlcol),
person_list[0] + ' ...' if len(person_list) > 1 else person_list[0]))
return person_intrvlcol
