def add_load_img(ax, img_path, title=None, transform=None, crop_res=None):
img = Image.open(img_path)
if transform is not None:
img = transform_img(img, transform, crop_res)
if title is not None:
ax.set_title(title)
ax.imshow(img)
ax.axis("off")
return img
def get_sample(self, idx, query=None, color_augm=None, space_augm=None):
if query is None:
query = self.queries
sample = {}
if BaseQueries.IMAGE in query or TransQueries.IMAGE in query:
center, scale = self.pose_dataset.get_center_scale(idx)
needs_center_scale = True
else:
needs_center_scale = False
if BaseQueries.JOINTVIS in query:
jointvis = self.pose_dataset.get_jointvis(idx)
sample[BaseQueries.JOINTVIS] = jointvis
# Get sides
if BaseQueries.SIDE in query:
hand_side = self.pose_dataset.get_sides(idx)
hand_side, flip = datutils.flip_hand_side(self.sides, hand_side)
sample[BaseQueries.SIDE] = hand_side
else:
flip = False
# Get original image
if BaseQueries.IMAGE in query or TransQueries.IMAGE in query:
img = self.pose_dataset.get_image(idx)
#img = img.resize((480, 270), Image.BILINEAR)
if flip:
img = img.transpose(Image.FLIP_LEFT_RIGHT)
if BaseQueries.IMAGE in query:
sample[BaseQueries.IMAGE] = np.array(img)
# Flip and image 2d if needed
if flip:
center[0] = img.size[0] - center[0]
# Data augmentation
if space_augm is not None:
center = space_augm["center"]
scale = space_augm["scale"]
rot = space_augm["rot"]
elif self.train and needs_center_scale:
# Randomly jitter center
# Center is located in square of size 2*center_jitter_factor
# in center of cropped image
center_jit = Uniform(low=-1, high=1).sample((2, )).numpy()
center_offsets = self.center_jittering * scale * center_jit
center = center + center_offsets.astype(int)
# Scale jittering
scale_jit = Normal(0, 1).sample().item() + 1
scale_jittering = self.scale_jittering * scale_jit
scale_jittering = np.clip(scale_jittering,
1 - self.scale_jittering,
1 + self.scale_jittering)
scale = scale * scale_jittering
rot = Uniform(low=-self.max_rot, high=self.max_rot).sample().item()
else:
rot = 0
if self.block_rot:
rot = 0
space_augm = {"rot": rot, "scale": scale, "center": center}
sample["space_augm"] = space_augm
rot_mat = np.array([[np.cos(rot), -np.sin(rot), 0],
[np.sin(rot), np.cos(rot), 0],
[0, 0, 1]]).astype(np.float32)
# Get 2D hand joints
if (TransQueries.JOINTS2D in query) or (TransQueries.IMAGE in query):
affinetrans, post_rot_trans = handutils.get_affine_transform(
center, scale, self.inp_res, rot=rot)
if TransQueries.AFFINETRANS in query:
sample[TransQueries.AFFINETRANS] = affinetrans
if BaseQueries.JOINTS2D in query or TransQueries.JOINTS2D in query:
joints2d = self.pose_dataset.get_joints2d(idx)
if flip:
joints2d = joints2d.copy()
joints2d[:, 0] = img.size[0] - joints2d[:, 0]
if BaseQueries.JOINTS2D in query:
sample[BaseQueries.JOINTS2D] = joints2d.astype(np.float32)
if TransQueries.JOINTS2D in query:
rows = handutils.transform_coords(joints2d, affinetrans)
sample[TransQueries.JOINTS2D] = np.array(rows).astype(np.float32)
if BaseQueries.CAMINTR in query or TransQueries.CAMINTR in query:
camintr = self.pose_dataset.get_camintr(idx)
if BaseQueries.CAMINTR in query:
sample[BaseQueries.CAMINTR] = camintr.astype(np.float32)
if TransQueries.CAMINTR in query:
# Rotation is applied as extr transform
new_camintr = post_rot_trans.dot(camintr)
sample[TransQueries.CAMINTR] = new_camintr.astype(np.float32)
# Get 2D object points
if BaseQueries.OBJVERTS2D in query or (TransQueries.OBJVERTS2D
in query):
objverts2d = self.pose_dataset.get_objverts2d(idx)
if flip:
objverts2d = objverts2d.copy()
objverts2d[:, 0] = img.size[0] - objverts2d[:, 0]
if BaseQueries.OBJVERTS2D in query:
sample[BaseQueries.OBJVERTS2D] = objverts2d.astype(np.float32)
if TransQueries.OBJVERTS2D in query:
transobjverts2d = handutils.transform_coords(
objverts2d, affinetrans)
sample[TransQueries.OBJVERTS2D] = np.array(
transobjverts2d).astype(np.float32)
if BaseQueries.OBJVIS2D in query:
objvis2d = self.pose_dataset.get_objvis2d(idx)
sample[BaseQueries.OBJVIS2D] = objvis2d
# Get 2D object points
if BaseQueries.OBJCORNERS2D in query or (TransQueries.OBJCORNERS2D
in query):
objcorners2d = self.pose_dataset.get_objcorners2d(idx)
if flip:
objcorners2d = objcorners2d.copy()
objcorners2d[:, 0] = img.size[0] - objcorners2d[:, 0]
if BaseQueries.OBJCORNERS2D in query:
sample[BaseQueries.OBJCORNERS2D] = np.array(objcorners2d)
if TransQueries.OBJCORNERS2D in query:
transobjcorners2d = handutils.transform_coords(
objcorners2d, affinetrans)
sample[TransQueries.OBJCORNERS2D] = np.array(transobjcorners2d)
# Get 2D hand points
if BaseQueries.HANDVERTS2D in query or (TransQueries.HANDVERTS2D
in query):
handverts2d = self.pose_dataset.get_hand_verts2d(idx)
if flip:
handverts2d = handverts2d.copy()
handverts2d[:, 0] = img.size[0] - handverts2d[:, 0]
if BaseQueries.HANDVERTS2D in query:
sample[BaseQueries.HANDVERTS2D] = handverts2d
if TransQueries.HANDVERTS2D in query:
transhandverts2d = handutils.transform_coords(
handverts2d, affinetrans)
sample[TransQueries.HANDVERTS2D] = np.array(transhandverts2d)
if BaseQueries.HANDVIS2D in query:
handvis2d = self.pose_dataset.get_handvis2d(idx)
sample[BaseQueries.HANDVIS2D] = handvis2d
# Get 3D hand joints
if ((BaseQueries.JOINTS3D in query) or (TransQueries.JOINTS3D in query)
or (TransQueries.HANDVERTS3D in query)
or (TransQueries.OBJVERTS3D in query)):
# Center on root joint
center3d_queries = [
TransQueries.JOINTS3D, BaseQueries.JOINTS3D,
TransQueries.HANDVERTS3D
]
if one_query_in([TransQueries.OBJVERTS3D] + center3d_queries,
query):
joints3d = self.pose_dataset.get_joints3d(idx)
if flip:
joints3d[:, 0] = -joints3d[:, 0]
if BaseQueries.JOINTS3D in query:
sample[BaseQueries.JOINTS3D] = joints3d.astype(np.float32)
if self.train:
joints3d = rot_mat.dot(joints3d.transpose(1,
0)).transpose()
# Compute 3D center
if self.center_idx is not None:
if self.center_idx == -1:
center3d = (joints3d[9] + joints3d[0]) / 2
else:
center3d = joints3d[self.center_idx]
if TransQueries.JOINTS3D in query and (self.center_idx
is not None):
joints3d = joints3d - center3d
if TransQueries.JOINTS3D in query:
sample[TransQueries.JOINTS3D] = joints3d.astype(np.float32)
# Get 3D hand vertices
if TransQueries.HANDVERTS3D in query or BaseQueries.HANDVERTS3D in query:
hand_verts3d = self.pose_dataset.get_hand_verts3d(idx)
if flip:
hand_verts3d[:, 0] = -hand_verts3d[:, 0]
if BaseQueries.OBJVERTS3D in query:
sample[BaseQueries.HANDVERTS3D] = hand_verts3d.astype(
np.float32)
if TransQueries.HANDVERTS3D in query:
hand_verts3d = rot_mat.dot(hand_verts3d.transpose(
1, 0)).transpose()
if self.center_idx is not None:
hand_verts3d = hand_verts3d - center3d
sample[TransQueries.HANDVERTS3D] = hand_verts3d.astype(
np.float32)
# Get 3D obj vertices
if TransQueries.OBJVERTS3D in query or BaseQueries.OBJVERTS3D in query:
obj_verts3d = self.pose_dataset.get_obj_verts_trans(idx)
if flip:
obj_verts3d[:, 0] = -obj_verts3d[:, 0]
if BaseQueries.OBJVERTS3D in query:
sample[BaseQueries.OBJVERTS3D] = obj_verts3d
if TransQueries.OBJVERTS3D in query:
origin_trans_mesh = rot_mat.dot(obj_verts3d.transpose(
1, 0)).transpose()
if self.center_idx is not None:
origin_trans_mesh = origin_trans_mesh - center3d
sample[TransQueries.OBJVERTS3D] = origin_trans_mesh.astype(
np.float32)
# Get 3D obj vertices
if TransQueries.OBJCANROTVERTS in query or BaseQueries.OBJCANROTVERTS in query:
obj_canverts3d = self.pose_dataset.get_obj_verts_can_rot(idx)
if flip:
obj_canverts3d[:, 0] = -obj_canverts3d[:, 0]
if BaseQueries.OBJCANROTVERTS in query:
sample[BaseQueries.OBJCANROTVERTS] = obj_canverts3d
if TransQueries.OBJCANROTVERTS in query:
can_rot_mesh = rot_mat.dot(obj_canverts3d.transpose(
1, 0)).transpose()
sample[TransQueries.OBJCANROTVERTS] = can_rot_mesh
# Get 3D obj vertices
if TransQueries.OBJCANROTCORNERS in query or BaseQueries.OBJCANROTCORNERS in query:
obj_cancorners3d = self.pose_dataset.get_obj_corners_can_rot(idx)
if flip:
obj_cancorners3d[:, 0] = -obj_cancorners3d[:, 0]
if BaseQueries.OBJCANROTCORNERS in query:
sample[BaseQueries.OBJCANROTCORNERS] = obj_cancorners3d
if TransQueries.OBJCANROTCORNERS in query:
can_rot_corners = rot_mat.dot(obj_cancorners3d.transpose(
1, 0)).transpose()
sample[TransQueries.OBJCANROTCORNERS] = can_rot_corners
if BaseQueries.OBJFACES in query:
obj_faces = self.pose_dataset.get_obj_faces(idx)
sample[BaseQueries.OBJFACES] = obj_faces
if BaseQueries.OBJCANVERTS in query:
obj_canverts, obj_cantrans, obj_canscale = self.pose_dataset.get_obj_verts_can(
idx)
if flip:
obj_canverts[:, 0] = -obj_canverts[:, 0]
sample[BaseQueries.OBJCANVERTS] = obj_canverts
sample[BaseQueries.OBJCANSCALE] = obj_canscale
sample[BaseQueries.OBJCANTRANS] = obj_cantrans
# Get 3D obj corners
if BaseQueries.OBJCORNERS3D in query or TransQueries.OBJCORNERS3D in query:
obj_corners3d = self.pose_dataset.get_obj_corners3d(idx)
if flip:
obj_corners3d[:, 0] = -obj_corners3d[:, 0]
if BaseQueries.OBJCORNERS3D in query:
sample[BaseQueries.OBJCORNERS3D] = obj_corners3d
if TransQueries.OBJCORNERS3D in query:
origin_trans_corners = rot_mat.dot(
obj_corners3d.transpose(1, 0)).transpose()
if self.center_idx is not None:
origin_trans_corners = origin_trans_corners - center3d
sample[TransQueries.OBJCORNERS3D] = origin_trans_corners
if BaseQueries.OBJCANCORNERS in query:
if flip:
obj_canverts[:, 0] = -obj_canverts[:, 0]
obj_cancorners = self.pose_dataset.get_obj_corners_can(idx)
sample[BaseQueries.OBJCANCORNERS] = obj_cancorners
if TransQueries.CENTER3D in query:
sample[TransQueries.CENTER3D] = center3d
# Get rgb image
if TransQueries.IMAGE in query:
# Data augmentation
if self.train:
blur_radius = Uniform(
low=0, high=1).sample().item() * self.blur_radius
img = img.filter(ImageFilter.GaussianBlur(blur_radius))
if color_augm is None:
bright, contrast, sat, hue = colortrans.get_color_params(
brightness=self.brightness,
saturation=self.saturation,
hue=self.hue,
contrast=self.contrast,
)
else:
sat = color_augm["sat"]
contrast = color_augm["contrast"]
hue = color_augm["hue"]
bright = color_augm["bright"]
img = colortrans.apply_jitter(img,
brightness=bright,
saturation=sat,
hue=hue,
contrast=contrast)
sample["color_augm"] = {
"sat": sat,
"bright": bright,
"contrast": contrast,
"hue": hue
}
else:
sample["color_augm"] = None
# Create buffer white image if needed
if TransQueries.JITTERMASK in query:
whiteimg = Image.new("RGB", img.size, (255, 255, 255))
# Transform and crop
img = handutils.transform_img(img, affinetrans, self.inp_res)
img = img.crop((0, 0, self.inp_res[0], self.inp_res[1]))
#img = img.resize((480, 270), Image.BILINEAR)
# Tensorize and normalize_img
img = func_transforms.to_tensor(img).float()
if self.normalize_img:
img = func_transforms.normalize(img, self.mean, self.std)
else:
img = func_transforms.normalize(img, [0.5, 0.5, 0.5],
[1, 1, 1])
if TransQueries.IMAGE in query:
sample[TransQueries.IMAGE] = img
if TransQueries.JITTERMASK in query:
jittermask = handutils.transform_img(whiteimg, affinetrans,
self.inp_res)
jittermask = jittermask.crop(
(0, 0, self.inp_res[0], self.inp_res[1]))
jittermask = func_transforms.to_tensor(jittermask).float()
sample[TransQueries.JITTERMASK] = jittermask
if self.pose_dataset.has_dist2strong and self.has_dist2strong:
dist2strong = self.pose_dataset.get_dist2strong(idx)
sample["dist2strong"] = dist2strong
return sample