113 lines
4.6 KiB
Python
113 lines
4.6 KiB
Python
# Copyright (c) OpenMMLab. All rights reserved.
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from collections import OrderedDict
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from mmcv.utils import print_log
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from mmdet.core import eval_map, eval_recalls
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from .builder import DATASETS
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from .xml_style import XMLDataset
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@DATASETS.register_module()
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class VOCDataset(XMLDataset):
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CLASSES = ('aeroplane', 'bicycle', 'bird', 'boat', 'bottle', 'bus', 'car',
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'cat', 'chair', 'cow', 'diningtable', 'dog', 'horse',
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'motorbike', 'person', 'pottedplant', 'sheep', 'sofa', 'train',
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'tvmonitor')
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PALETTE = [(106, 0, 228), (119, 11, 32), (165, 42, 42), (0, 0, 192),
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(197, 226, 255), (0, 60, 100), (0, 0, 142), (255, 77, 255),
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(153, 69, 1), (120, 166, 157), (0, 182, 199), (0, 226, 252),
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(182, 182, 255), (0, 0, 230), (220, 20, 60), (163, 255, 0),
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(0, 82, 0), (3, 95, 161), (0, 80, 100), (183, 130, 88)]
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def __init__(self, **kwargs):
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super(VOCDataset, self).__init__(**kwargs)
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if 'VOC2007' in self.img_prefix:
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self.year = 2007
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elif 'VOC2012' in self.img_prefix:
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self.year = 2012
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else:
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raise ValueError('Cannot infer dataset year from img_prefix')
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def evaluate(self,
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results,
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metric='mAP',
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logger=None,
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proposal_nums=(100, 300, 1000),
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iou_thr=0.5,
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scale_ranges=None):
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"""Evaluate in VOC protocol.
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Args:
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results (list[list | tuple]): Testing results of the dataset.
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metric (str | list[str]): Metrics to be evaluated. Options are
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'mAP', 'recall'.
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logger (logging.Logger | str, optional): Logger used for printing
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related information during evaluation. Default: None.
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proposal_nums (Sequence[int]): Proposal number used for evaluating
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recalls, such as recall@100, recall@1000.
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Default: (100, 300, 1000).
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iou_thr (float | list[float]): IoU threshold. Default: 0.5.
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scale_ranges (list[tuple], optional): Scale ranges for evaluating
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mAP. If not specified, all bounding boxes would be included in
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evaluation. Default: None.
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Returns:
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dict[str, float]: AP/recall metrics.
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"""
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if not isinstance(metric, str):
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assert len(metric) == 1
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metric = metric[0]
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allowed_metrics = ['mAP', 'recall']
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if metric not in allowed_metrics:
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raise KeyError(f'metric {metric} is not supported')
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annotations = [self.get_ann_info(i) for i in range(len(self))]
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eval_results = OrderedDict()
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iou_thrs = [iou_thr] if isinstance(iou_thr, float) else iou_thr
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if metric == 'mAP':
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assert isinstance(iou_thrs, list)
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if self.year == 2007:
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ds_name = 'voc07'
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else:
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ds_name = self.CLASSES
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mean_aps = []
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for iou_thr in iou_thrs:
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print_log(f'\n{"-" * 15}iou_thr: {iou_thr}{"-" * 15}')
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# Follow the official implementation,
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# http://host.robots.ox.ac.uk/pascal/VOC/voc2012/VOCdevkit_18-May-2011.tar
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# we should use the legacy coordinate system in mmdet 1.x,
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# which means w, h should be computed as 'x2 - x1 + 1` and
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# `y2 - y1 + 1`
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mean_ap, _ = eval_map(
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results,
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annotations,
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scale_ranges=None,
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iou_thr=iou_thr,
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dataset=ds_name,
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logger=logger,
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use_legacy_coordinate=True)
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mean_aps.append(mean_ap)
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eval_results[f'AP{int(iou_thr * 100):02d}'] = round(mean_ap, 3)
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eval_results['mAP'] = sum(mean_aps) / len(mean_aps)
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eval_results.move_to_end('mAP', last=False)
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elif metric == 'recall':
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gt_bboxes = [ann['bboxes'] for ann in annotations]
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recalls = eval_recalls(
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gt_bboxes,
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results,
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proposal_nums,
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iou_thrs,
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logger=logger,
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use_legacy_coordinate=True)
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for i, num in enumerate(proposal_nums):
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for j, iou_thr in enumerate(iou_thrs):
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eval_results[f'recall@{num}@{iou_thr}'] = recalls[i, j]
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if recalls.shape[1] > 1:
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ar = recalls.mean(axis=1)
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for i, num in enumerate(proposal_nums):
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eval_results[f'AR@{num}'] = ar[i]
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return eval_results
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