|
- _base_ = [
- '../_base_/models/mask_rcnn_r50_fpn.py',
- '../_base_/datasets/coco_instance.py',
- '../_base_/schedules/schedule_1x.py', '../_base_/default_runtime.py'
- ]
-
- pretrained = 'https://github.com/SwinTransformer/storage/releases/download/v1.0.0/swin_tiny_patch4_window7_224.pth' # noqa
-
- model = dict(
- type='MaskRCNN',
- backbone=dict(
- _delete_=True,
- type='SwinTransformer',
- embed_dims=96,
- depths=[2, 2, 6, 2],
- num_heads=[3, 6, 12, 24],
- window_size=7,
- mlp_ratio=4,
- qkv_bias=True,
- qk_scale=None,
- drop_rate=0.,
- attn_drop_rate=0.,
- drop_path_rate=0.2,
- patch_norm=True,
- out_indices=(0, 1, 2, 3),
- with_cp=False,
- convert_weights=True,
- init_cfg=dict(type='Pretrained', checkpoint=pretrained)),
- neck=dict(in_channels=[96, 192, 384, 768]))
-
- img_norm_cfg = dict(
- mean=[123.675, 116.28, 103.53], std=[58.395, 57.12, 57.375], to_rgb=True)
-
- # augmentation strategy originates from DETR / Sparse RCNN
- train_pipeline = [
- dict(type='LoadImageFromFile'),
- dict(type='LoadAnnotations', with_bbox=True, with_mask=True),
- dict(type='RandomFlip', flip_ratio=0.5),
- dict(
- type='AutoAugment',
- policies=[[
- dict(
- type='Resize',
- img_scale=[(480, 1333), (512, 1333), (544, 1333), (576, 1333),
- (608, 1333), (640, 1333), (672, 1333), (704, 1333),
- (736, 1333), (768, 1333), (800, 1333)],
- multiscale_mode='value',
- keep_ratio=True)
- ],
- [
- dict(
- type='Resize',
- img_scale=[(400, 1333), (500, 1333), (600, 1333)],
- multiscale_mode='value',
- keep_ratio=True),
- dict(
- type='RandomCrop',
- crop_type='absolute_range',
- crop_size=(384, 600),
- allow_negative_crop=True),
- dict(
- type='Resize',
- img_scale=[(480, 1333), (512, 1333), (544, 1333),
- (576, 1333), (608, 1333), (640, 1333),
- (672, 1333), (704, 1333), (736, 1333),
- (768, 1333), (800, 1333)],
- multiscale_mode='value',
- override=True,
- keep_ratio=True)
- ]]),
- dict(type='Normalize', **img_norm_cfg),
- dict(type='Pad', size_divisor=32),
- dict(type='DefaultFormatBundle'),
- dict(type='Collect', keys=['img', 'gt_bboxes', 'gt_labels', 'gt_masks']),
- ]
- data = dict(train=dict(pipeline=train_pipeline))
-
- optimizer = dict(
- _delete_=True,
- type='AdamW',
- lr=0.0001,
- betas=(0.9, 0.999),
- weight_decay=0.05,
- paramwise_cfg=dict(
- custom_keys={
- 'absolute_pos_embed': dict(decay_mult=0.),
- 'relative_position_bias_table': dict(decay_mult=0.),
- 'norm': dict(decay_mult=0.)
- }))
- lr_config = dict(warmup_iters=1000, step=[27, 33])
- runner = dict(max_epochs=36)
|