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IoU、GIoU、DIoU、CIoU损失函数的那点事儿 - 知乎 - 知乎专栏
一、IOU (Intersection over Union) 1. 特性 (优点) IoU就是我们所说的 交并比 ,是目标检测中最常用的指标,在 anchor-based的方法 中,他的作用不仅用来确定正样本和负样本,还可以用来评价输出框(predict box)和ground-truth的距离。. IoU = \frac {\left| A\cap B \right|} {\left| A\cup B ...
深度学习中的IoU概念理解_iou是什么意思-CSDN博客
IoU是Intersection of Union的缩写,中文意思为:并集交点 IoU表示真实框和预测框的重合程度,取值区间为[0,1],IoU值越大,表明两个框重合越好 IoU的计算公式: IoU代码(python): def iou(boxA,boxB): #计算重合部分的上、下、左、右4个边的值,注意最大最小函数的使用 left ...
目标检测基础模块之IoU及优化 - 知乎 - 知乎专栏
IoU其实是Intersection over Union的简称,也叫‘交并比’。IoU在目标检测以及语义分割中,都有着至关重要的作用。 首先,我们先来了解一下IoU的定义: IoU=\frac{|A∩B|}{|A∪B|}\\ 直观来讲,我们可以把IoU的值定为为两个图形面积的交集和并集的比值,如下图所示:
《一文搞懂IoU发展历程》GIoU、DIoU、CIoU、EIoU、αIoU、SIoU-阿里云开发者社区
IOU的全称为交并比(Intersection over Union),是目标检测中使用的一个概念,IoU计算的是“预测的边框”和“真实的边框”的交叠率,即它们的交集和并集的比值。
目标检测-Iou(交并比)理解-CSDN博客
IoU是一种测量在特定数据集中检测相应物体准确度的一个标准。只要是在输出中得出一个预测范围(bounding boxes)的任务都可以用IoU来进行测量。IoU算法是使用最广泛的算法,大部分的检测算法都是
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