本文整理汇总了Python中datasets.ds_utils.xyxy_to_xywh方法的典型用法代码示例。如果您正苦于以下问题：Python ds_utils.xyxy_to_xywh方法的具体用法？Python ds_utils.xyxy_to_xywh怎么用？Python ds_utils.xyxy_to_xywh使用的例子？那么, 这里精选的方法代码示例或许可以为您提供帮助。您也可以进一步了解该方法所在类datasets.ds_utils的用法示例。
在下文中一共展示了ds_utils.xyxy_to_xywh方法的1个代码示例，这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞，您的评价将有助于系统推荐出更棒的Python代码示例。
示例1: _filter_crowd_proposals
# 需要导入模块: from datasets import ds_utils [as 别名]
# 或者: from datasets.ds_utils import xyxy_to_xywh [as 别名]
def _filter_crowd_proposals(roidb, crowd_thresh):
"""
Finds proposals that are inside crowd regions and marks them with
overlap = -1 (for all gt rois), which means they will be excluded from
training.
"""
for ix, entry in enumerate(roidb):
overlaps = entry['gt_overlaps'].toarray()
crowd_inds = np.where(overlaps.max(axis=1) == -1)[0]
non_gt_inds = np.where(entry['gt_classes'] == 0)[0]
if len(crowd_inds) == 0 or len(non_gt_inds) == 0:
continue
iscrowd = [int(True) for _ in xrange(len(crowd_inds))]
crowd_boxes = ds_utils.xyxy_to_xywh(entry['boxes'][crowd_inds, :])
non_gt_boxes = ds_utils.xyxy_to_xywh(entry['boxes'][non_gt_inds, :])
ious = COCOmask.iou(non_gt_boxes, crowd_boxes, iscrowd)
bad_inds = np.where(ious.max(axis=1) > crowd_thresh)[0]
overlaps[non_gt_inds[bad_inds], :] = -1
roidb[ix]['gt_overlaps'] = scipy.sparse.csr_matrix(overlaps)
return roidb