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- _base_ = './fcos_r50-caffe_fpn_gn-head_1x_coco.py'
- # model settings
- model = dict(
- backbone=dict(
- depth=101,
- init_cfg=dict(
- type='Pretrained',
- checkpoint='open-mmlab://detectron/resnet101_caffe')))
- # dataset settings
- train_pipeline = [
- dict(type='LoadImageFromFile', backend_args={{_base_.backend_args}}),
- dict(type='LoadAnnotations', with_bbox=True),
- dict(
- type='RandomChoiceResize',
- scale=[(1333, 640), (1333, 800)],
- keep_ratio=True),
- dict(type='RandomFlip', prob=0.5),
- dict(type='PackDetInputs')
- ]
- train_dataloader = dict(dataset=dict(pipeline=train_pipeline))
- # training schedule for 2x
- max_epochs = 24
- train_cfg = dict(max_epochs=max_epochs)
- # learning rate
- param_scheduler = [
- dict(type='ConstantLR', factor=1.0 / 3, by_epoch=False, begin=0, end=500),
- dict(
- type='MultiStepLR',
- begin=0,
- end=max_epochs,
- by_epoch=True,
- milestones=[16, 22],
- gamma=0.1)
- ]
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