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yolov3_d53_mstrain-608_8x_bigdet.py
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yolov3_d53_mstrain-608_8x_bigdet.py
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_base_ = ['../../_base_/default_runtime.py', '../../_base_/datasets/bigdet_detection.py']
# model settings
model = dict(
type='YOLOV3',
backbone=dict(
type='Darknet',
depth=53,
out_indices=(3, 4, 5),
init_cfg=dict(type='Pretrained', checkpoint='open-mmlab://darknet53')),
neck=dict(
type='YOLOV3Neck',
num_scales=3,
in_channels=[1024, 512, 256],
out_channels=[512, 256, 128]),
bbox_head=dict(
type='YOLOV3Head',
num_classes=600,
in_channels=[512, 256, 128],
out_channels=[1024, 512, 256],
anchor_generator=dict(
type='YOLOAnchorGenerator',
base_sizes=[[(116, 90), (156, 198), (373, 326)],
[(30, 61), (62, 45), (59, 119)],
[(10, 13), (16, 30), (33, 23)]],
strides=[32, 16, 8]),
bbox_coder=dict(type='YOLOBBoxCoder'),
featmap_strides=[32, 16, 8],
loss_cls=dict(
type='CrossEntropyLoss',
use_sigmoid=True,
loss_weight=1.0,
reduction='sum'),
loss_conf=dict(
type='CrossEntropyLoss',
use_sigmoid=True,
loss_weight=1.0,
reduction='sum'),
loss_xy=dict(
type='CrossEntropyLoss',
use_sigmoid=True,
loss_weight=2.0,
reduction='sum'),
loss_wh=dict(type='MSELoss', loss_weight=2.0, reduction='sum')),
# training and testing settings
train_cfg=dict(
assigner=dict(
type='GridAssigner',
pos_iou_thr=0.5,
neg_iou_thr=0.5,
min_pos_iou=0)),
test_cfg=dict(
nms_pre=1000,
min_bbox_size=0,
score_thr=0.05,
conf_thr=0.005,