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有关类别的指定 about yolo-fastestv2 HOT 4 OPEN

dog-qiuqiu avatar dog-qiuqiu commented on August 22, 2024
有关类别的指定

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Comments (4)

dog-qiuqiu avatar dog-qiuqiu commented on August 22, 2024

1.类别的起始下标为0不是1,例如单类的话类别下标都为0,多类的话0为起始,例如20类,则.txt中的类别下标为0,1,2,3,...19
2.是的,classes为类别数目
3.训练单类模型cls loss为0是正常的

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Lebhoryi avatar Lebhoryi commented on August 22, 2024

能补充一下处理coco数据的详细信息么。我查到了 darknet 的 script 中有两个下载coco数据集的脚本,分别是2014和2017

没有查到的是怎么提取出txt文档,下载下来coco2017 train文件夹下只有jpg

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akioolin avatar akioolin commented on August 22, 2024

關於獲取coco2017的txt可以參考yolo-fastest/scripts中的get_coco2017.sh的label檔案。或者是使用這個專案的script來轉換。https://github.com/ultralytics/JSON2YOLO
不過請問有人知道coco2017的類別是80類還是91類?

BR, Akio

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Tallisgo avatar Tallisgo commented on August 22, 2024

1.类别的起始下标为0不是1,例如单类的话类别下标都为0,多类的话0为起始,例如20类,则.txt中的类别下标为0,1,2,3,...19 2.是的,classes为类别数目 3.训练单类模型cls loss为0是正常的

大佬, 为什么训练单类模型 cls loss 一直是0为啥是正常的呀

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