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| # Copyright (c) Meta Platforms, Inc. and affiliates. | |
| # All rights reserved. | |
| # | |
| # This source code is licensed under the license found in the | |
| # LICENSE file in the root directory of this source tree. | |
| # model settings | |
| model = dict( | |
| type='RPN', | |
| data_preprocessor=dict( | |
| type='DetDataPreprocessor', | |
| mean=[103.530, 116.280, 123.675], | |
| std=[1.0, 1.0, 1.0], | |
| bgr_to_rgb=False, | |
| pad_size_divisor=32), | |
| backbone=dict( | |
| type='ResNet', | |
| depth=50, | |
| num_stages=3, | |
| strides=(1, 2, 2), | |
| dilations=(1, 1, 1), | |
| out_indices=(2, ), | |
| frozen_stages=1, | |
| norm_cfg=dict(type='BN', requires_grad=False), | |
| norm_eval=True, | |
| style='caffe', | |
| init_cfg=dict( | |
| type='Pretrained', | |
| checkpoint='open-mmlab://detectron2/resnet50_caffe')), | |
| neck=None, | |
| rpn_head=dict( | |
| type='RPNHead', | |
| in_channels=1024, | |
| feat_channels=1024, | |
| anchor_generator=dict( | |
| type='AnchorGenerator', | |
| scales=[2, 4, 8, 16, 32], | |
| ratios=[0.5, 1.0, 2.0], | |
| strides=[16]), | |
| bbox_coder=dict( | |
| type='DeltaXYWHBBoxCoder', | |
| target_means=[.0, .0, .0, .0], | |
| target_stds=[1.0, 1.0, 1.0, 1.0]), | |
| loss_cls=dict( | |
| type='CrossEntropyLoss', use_sigmoid=True, loss_weight=1.0), | |
| loss_bbox=dict(type='L1Loss', loss_weight=1.0)), | |
| # model training and testing settings | |
| train_cfg=dict( | |
| rpn=dict( | |
| assigner=dict( | |
| type='MaxIoUAssigner', | |
| pos_iou_thr=0.7, | |
| neg_iou_thr=0.3, | |
| min_pos_iou=0.3, | |
| ignore_iof_thr=-1), | |
| sampler=dict( | |
| type='RandomSampler', | |
| num=256, | |
| pos_fraction=0.5, | |
| neg_pos_ub=-1, | |
| add_gt_as_proposals=False), | |
| allowed_border=-1, | |
| pos_weight=-1, | |
| debug=False)), | |
| test_cfg=dict( | |
| rpn=dict( | |
| nms_pre=12000, | |
| max_per_img=2000, | |
| nms=dict(type='nms', iou_threshold=0.7), | |
| min_bbox_size=0))) | |