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【3D OD LiDAR編】3D IoU Loss : 3D IoUをlossに足すと精度が上がる話

Posted at

IoU Loss for 2D/3D Object Detection

![image.png](https://qiita-image-store.s3.ap-northeast-1.amazonaws.com/0/482094/47519a48-9e81-73de-d2c4-d713c55c814e.png)

3D Object DetectionでIoUをLossにこれまで使っていなかったらしい。
まさか〜と思って調べてみると、ホンマや!

IoUをLossに加えるのなんて簡単な事だと思うのだが、何故誰もやってこなかったんだろう?!
回転ありのIoU計算するの面倒くさいからかな?

結果

![image.png](https://qiita-image-store.s3.ap-northeast-1.amazonaws.com/0/482094/8ccb3d73-7e0a-d9c4-80c0-57463a9a265f.png) IoUもGIouも無いより精度が上がってる

結論

・当たり前のようだけどIoU Lossを加えると精度が上がっている

参考文献

IoU Loss for 2D/3D Object Detection https://arxiv.org/pdf/1908.03851.pdf
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