giou损失函数计算公式

GIOU损失函数的计算公式如下：

GIOU = IOU - (C - Union) / C

其中，IOU表示两个框相交的面积除以两个框合并的面积，C表示两个框的外接矩形的面积，Union表示两个框的合并面积。通过计算IOU和外接矩形的面积差，GIOU损失函数可以更准确地评估目标检测模型的性能。\[2\]
#### 引用[.reference_title]
- *1* *2* [一文详解目标检测损失函数：IOU、GIOU、DIOU、CIOU](https://blog.csdn.net/zandaoguang/article/details/127020187)[target="_blank" data-report-click={"spm":"1018.2226.3001.9630","extra":{"utm_source":"vip_chatgpt_common_search_pc_result","utm_medium":"distribute.pc_search_result.none-task-cask-2~all~insert_cask~default-1-null.142^v91^insertT0,239^v3^insert_chatgpt"}} ] [.reference_item]
- *3* [目标检测中的损失函数IoU、GIoU、DIoU、CIoU、SIoU](https://blog.csdn.net/qq_40042726/article/details/125072911)[target="_blank" data-report-click={"spm":"1018.2226.3001.9630","extra":{"utm_source":"vip_chatgpt_common_search_pc_result","utm_medium":"distribute.pc_search_result.none-task-cask-2~all~insert_cask~default-1-null.142^v91^insertT0,239^v3^insert_chatgpt"}} ] [.reference_item]
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