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@@ -38,7 +38,6 @@ def pairwise_intersection(boxes1, boxes2):
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References:
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`core.box_list_ops.intersection` in Tensorflow object detection API
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`utils.box_list_ops.intersection` in Tensorflow object detection API
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- `core.evaluation.bbox_overlaps.bbox_overlaps` in mmdetection
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"""
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rows = boxes1.shape[0]
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cols = boxes2.shape[0]
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@@ -78,9 +77,16 @@ def paired_overlap_ratio(boxes1, boxes2, ratio_type='iou'):
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ioa: Intersection-over-area (ioa) between two boxes box1 and box2 is defined as
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their intersection area over box2's area. Note that ioa is not symmetric,
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that is, IOA(box1, box2) != IOA(box2, box1).
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+ min: Compute the ratio as the area of intersection between box1 and box2,
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+ divided by the minimum area of the two bounding boxes.
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Returns:
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a numpy array with shape [N,] representing itemwise overlap ratio.
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+
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+ References:
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+ `core.box_list_ops.matched_iou` in Tensorflow object detection API
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+ `structures.boxes.matched_boxlist_iou` in detectron2
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+ `mmdet.core.bbox.bbox_overlaps`, see https://mmdetection.readthedocs.io/en/v2.17.0/api.html#mmdet.core.bbox.bbox_overlaps
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"""
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intersect_area = paired_intersection(boxes1, boxes2)
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area1 = (boxes1[:, 2] - boxes1[:, 0]) * (boxes1[:, 3] - boxes1[:, 1])
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@@ -111,14 +117,17 @@ def pairwise_overlap_ratio(boxes1, boxes2, ratio_type='iou'):
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ioa: Intersection-over-area (ioa) between two boxes box1 and box2 is defined as
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their intersection area over box2's area. Note that ioa is not symmetric,
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that is, IOA(box1, box2) != IOA(box2, box1).
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-
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+ min: Compute the ratio as the area of intersection between box1 and box2,
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+ divided by the minimum area of the two bounding boxes.
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Returns:
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a numpy array with shape [N, M] representing pairwise overlap ratio.
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References:
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`utils.np_box_ops.iou` in Tensorflow object detection API
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`utils.np_box_ops.ioa` in Tensorflow object detection API
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- `core.evaluation.bbox_overlaps.bbox_overlaps` in mmdetection
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+ `mmdet.core.bbox.bbox_overlaps`, see https://mmdetection.readthedocs.io/en/v2.17.0/api.html#mmdet.core.bbox.bbox_overlaps
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+ `torchvision.ops.box_iou`, see https://pytorch.org/vision/stable/ops.html#torchvision.ops.box_iou
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+ `torchvision.ops.generalized_box_iou`, see https://pytorch.org/vision/stable/ops.html#torchvision.ops.generalized_box_iou
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http://ww2.mathworks.cn/help/vision/ref/bboxoverlapratio.html
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"""
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intersect_area = pairwise_intersection(boxes1, boxes2)
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quarrying