def get_config(is_train):
class General:
log_frequency = 10
name = __name__.rsplit("/")[-1].rsplit(".")[-1]
batch_image = 3 if is_train else 1
fp16 = True
class KvstoreParam:
kvstore = "local"
batch_image = General.batch_image
gpus = [0, 1, 2, 3, 4, 5, 6, 7]
fp16 = General.fp16
class NormalizeParam:
normalizer = normalizer_factory(type="syncbn", ndev=8, wd_mult=1.0)
class BackboneParam:
fp16 = General.fp16
normalizer = NormalizeParam.normalizer
depth = 50
class NeckParam:
fp16 = General.fp16
normalizer = NormalizeParam.normalizer
dim_reduced = 384
num_stage = 3
S0_kernel = 1
class RpnParam:
num_class = 1 + 80
fp16 = General.fp16
normalizer = NormalizeParam.normalizer
batch_image = General.batch_image
sync_loss = True
class anchor_generate:
scale = (4 * 2**0, 4 * 2**(1.0 / 3.0), 4 * 2**(2.0 / 3.0))
ratio = (0.5, 1.0, 2.0)
stride = (8, 16, 32, 64, 128)
image_anchor = None
class head:
conv_channel = 256
mean = None
std = None
class proposal:
pre_nms_top_n = 1000
post_nms_top_n = None
nms_thr = None
min_bbox_side = None
min_det_score = 0.05 # filter score in network
class focal_loss:
alpha = 0.25
gamma = 2.0
class BboxParam:
fp16 = General.fp16
normalizer = NormalizeParam.normalizer
num_class = None
image_roi = None
batch_image = None
class RoiParam:
fp16 = General.fp16
normalizer = NormalizeParam.normalizer
out_size = None
stride = None
class DatasetParam:
if is_train:
image_set = ("coco_train2017", "coco_val2017")
else:
image_set = ("coco_test-dev2017", )
backbone = Backbone(BackboneParam)
neck = Neck(NeckParam)
rpn_head = RpnHead(RpnParam)
detector = Detector()
if is_train:
train_sym = detector.get_train_symbol(backbone, neck, rpn_head)
test_sym = None
else:
train_sym = None
test_sym = detector.get_test_symbol(backbone, neck, rpn_head)
class ModelParam:
train_symbol = train_sym
test_symbol = test_sym
from_scratch = False
random = True
memonger = False
memonger_until = "stage4_unit3_relu"
class pretrain:
prefix = "pretrain_model/resnet%s_v1b" % BackboneParam.depth
epoch = 0
fixed_param = ["conv0"]
class OptimizeParam:
class optimizer:
type = "sgd"
lr = 0.01 / 8 * len(KvstoreParam.gpus) * KvstoreParam.batch_image
momentum = 0.9
wd = 0.0001
clip_gradient = None
class schedule:
begin_epoch = 0
end_epoch = 25
lr_iter = [
15272 * 15 * 16 //
(len(KvstoreParam.gpus) * KvstoreParam.batch_image), 15272 *
20 * 16 // (len(KvstoreParam.gpus) * KvstoreParam.batch_image)
]
class warmup:
type = "gradual"
lr = 0.001 / 8 * len(KvstoreParam.gpus) * KvstoreParam.batch_image
iter = 15272 * 1 * 16 // (len(KvstoreParam.gpus) *
KvstoreParam.batch_image)
class TestParam:
min_det_score = 0 # filter appended boxes
max_det_per_image = 100
process_roidb = lambda x: x
process_output = lambda x, y: x
class model:
prefix = "experiments/{}/checkpoint".format(General.name)
epoch = OptimizeParam.schedule.end_epoch
class nms:
type = "nms"
thr = 0.5
class coco:
annotation = "data/coco/annotations/instances_val2017.json"
# data processing
class NormParam:
mean = (123.688, 116.779, 103.939) # RGB order
std = (58.393, 57.12, 57.375)
class ResizeParam:
short = 1280
long = 1280
scale_min = 0.8
scale_max = 1.2
class PadParam:
short = ResizeParam.short
long = ResizeParam.long
max_num_gt = 100
class AnchorTarget2DParam:
def __init__(self):
self.generate = self._generate()
class _generate:
def __init__(self):
self.short = (160, 80, 40, 20, 10)
self.long = (160, 80, 40, 20, 10)
self.stride = (8, 16, 32, 64, 128)
scales = (4 * 2**0, 4 * 2**(1.0 / 3.0), 4 * 2**(2.0 / 3.0))
aspects = (0.5, 1.0, 2.0)
class assign:
allowed_border = 9999
pos_thr = 0.5
neg_thr = 0.5
min_pos_thr = 0.0
class sample:
image_anchor = None
pos_fraction = None
class RenameParam:
mapping = dict(image="data")
from core.detection_input import ReadRoiRecord, Resize2DImageBbox, \
ConvertImageFromHwcToChw, Flip2DImageBbox, Pad2DImageBbox, \
RenameRecord
from models.NASFPN.input import RandResizeCrop2DImageBbox, ResizeCrop2DImageBbox
from models.retinanet.input import PyramidAnchorTarget2D, Norm2DImage, \
AverageFgCount
if is_train:
transform = {
"sample": [
ReadRoiRecord(None),
Norm2DImage(NormParam),
RandResizeCrop2DImageBbox(ResizeParam),
Flip2DImageBbox(),
Pad2DImageBbox(PadParam),
ConvertImageFromHwcToChw(),
PyramidAnchorTarget2D(AnchorTarget2DParam()),
RenameRecord(RenameParam.mapping)
],
"batch": [AverageFgCount("rpn_fg_count")]
}
data_name = ["data"]
label_name = [
"rpn_cls_label", "rpn_fg_count", "rpn_reg_target", "rpn_reg_weight"
]
else:
transform = [
ReadRoiRecord(None),
Norm2DImage(NormParam),
ResizeCrop2DImageBbox(ResizeParam),
Pad2DImageBbox(PadParam),
ConvertImageFromHwcToChw(),
RenameRecord(RenameParam.mapping)
]
data_name = ["data", "im_info", "im_id", "rec_id"]
label_name = []
from models.retinanet import metric
rpn_acc_metric = metric.FGAccMetric("FGAcc", ["cls_loss_output"],
["rpn_cls_label"])
metric_list = [rpn_acc_metric]
return General, KvstoreParam, RpnParam, RoiParam, BboxParam, DatasetParam, \
ModelParam, OptimizeParam, TestParam, \
transform, data_name, label_name, metric_list
class assign:
allowed_border = 0
pos_thr = 0.7
neg_thr = 0.3
min_pos_thr = 0.0
class sample:
image_anchor = 256
pos_fraction = 0.5
class RenameParam:
mapping = dict(image="data")
transform = [
ReadRoiRecord(None),
RandResizeCrop2DImageBbox(ResizeParam),
Flip2DImageBbox(),
Pad2DImageBbox(PadParam),
ConvertImageFromHwcToChw(),
AnchorTarget2D(AnchorTarget2DParam),
RenameRecord(RenameParam.mapping)
]
DEBUG = True
with open("data/cache/coco_val2017.roidb", "rb") as fin:
roidb = pkl.load(fin)
roidb = [rec for rec in roidb if rec["gt_bbox"].shape[0] > 0]
roidb = [roidb[i] for i in np.random.choice(len(roidb), 20, replace=False)]
print(roidb[0])