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lilanxiao avatar lilanxiao commented on May 23, 2024

这个function可以判断矩形1的四个角是否落在矩形2之内。

核心问题是判断单独一个点是不是落在一个矩形内。因为矩形的内角都是直角,只需要判断该点在矩形相邻两条边的投影是否落在线段内就可以。实现的时候使用了向量的内积。具体的讲解参考这里:https://math.stackexchange.com/questions/2157931/how-to-check-if-a-point-is-inside-a-square-2d-plane

剩下的事情就是用张量化的**,让这个function可以并行计算BxN对矩形。

from rotated_iou.

zzybj avatar zzybj commented on May 23, 2024

这个function可以判断矩形1的四个角是否落在矩形2之内。

核心问题是判断单独一个点是不是落在一个矩形内。因为矩形的内角都是直角,只需要判断该点在矩形相邻两条边的投影是否落在线段内就可以。实现的时候使用了向量的内积。具体的讲解参考这里:https://math.stackexchange.com/questions/2157931/how-to-check-if-a-point-is-inside-a-square-2d-plane

剩下的事情就是用张量化的**,让这个function可以并行计算BxN对矩形。

thank you

from rotated_iou.

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