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yolov5_ins_l-v61_syncbn_fast_8xb16-300e_coco_instance.py
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yolov5_ins_l-v61_syncbn_fast_8xb16-300e_coco_instance.py
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_base_ = './yolov5_ins_m-v61_syncbn_fast_8xb16-300e_coco_instance.py' # noqa
# This config use refining bbox and `YOLOv5CopyPaste`.
# Refining bbox means refining bbox by mask while loading annotations and
# transforming after `YOLOv5RandomAffine`
# ========================modified parameters======================
deepen_factor = 1.0
widen_factor = 1.0
mixup_prob = 0.1
copypaste_prob = 0.1
# =======================Unmodified in most cases==================
img_scale = _base_.img_scale
model = dict(
backbone=dict(
deepen_factor=deepen_factor,
widen_factor=widen_factor,
),
neck=dict(
deepen_factor=deepen_factor,
widen_factor=widen_factor,
),
bbox_head=dict(head_module=dict(widen_factor=widen_factor)))
pre_transform = _base_.pre_transform
albu_train_transforms = _base_.albu_train_transforms
mosaic_affine_pipeline = [
dict(
type='Mosaic',
img_scale=img_scale,
pad_val=114.0,
pre_transform=pre_transform),
dict(type='YOLOv5CopyPaste', prob=copypaste_prob),
dict(
type='YOLOv5RandomAffine',
max_rotate_degree=0.0,
max_shear_degree=0.0,
scaling_ratio_range=(1 - _base_.affine_scale, 1 + _base_.affine_scale),
border=(-img_scale[0] // 2, -img_scale[1] // 2),
border_val=(114, 114, 114),
min_area_ratio=_base_.min_area_ratio,
max_aspect_ratio=_base_.max_aspect_ratio,
use_mask_refine=_base_.use_mask2refine),
]
# enable mixup
train_pipeline = [
*pre_transform,
*mosaic_affine_pipeline,
dict(
type='YOLOv5MixUp',
prob=mixup_prob,
pre_transform=[*pre_transform, *mosaic_affine_pipeline]),
# TODO: support mask transform in albu
# Geometric transformations are not supported in albu now.
dict(
type='mmdet.Albu',
transforms=albu_train_transforms,
bbox_params=dict(
type='BboxParams',
format='pascal_voc',
label_fields=['gt_bboxes_labels', 'gt_ignore_flags']),
keymap={
'img': 'image',
'gt_bboxes': 'bboxes'
}),
dict(type='YOLOv5HSVRandomAug'),
dict(type='mmdet.RandomFlip', prob=0.5),
dict(
type='Polygon2Mask',
downsample_ratio=_base_.downsample_ratio,
mask_overlap=_base_.mask_overlap),
dict(
type='PackDetInputs',
meta_keys=('img_id', 'img_path', 'ori_shape', 'img_shape', 'flip',
'flip_direction'))
]
train_dataloader = dict(dataset=dict(pipeline=train_pipeline))