Intersection-over-union between two detections

本文深入探讨了在计算机视觉领域中,如何计算两个检测框之间的交并比,并解释了在色彩通道操作外,如何构建一个三维直方图。了解这些概念对于提升目标检测和图像分析技术至关重要。

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1) You have two overlapping bounding boxes. You compute the intersection of the boxes, which is the area of the overlap. You compute the union of the overlapping boxes, which is the sum of the areas of the entire boxes minus the area of the overlap. Then you divide the intersection by the union. There is a function for that in the Computer Vision System Toolbox called bboxOverlapRatio.

2) Generally, you don't want to concatenate the color channels. What you want instead, is a 3D histogram, where the dimensions are H, S, and V.


转自:http://stackoverflow.com/questions/28723670/intersection-over-union-between-two-detections

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