PaddleOCR方向分类器优化输入图像
PaddleOCR
Awesome multilingual OCR toolkits based on PaddlePaddle (practical ultra lightweight OCR system, support 80+ languages recognition, provide data annotation and synthesis tools, support training and deployment among server, mobile, embedded and IoT devices)
项目地址:https://gitcode.com/gh_mirrors/pa/PaddleOCR

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方向分类器对于过长或者过短的分类效果可能不好。
例如过长的情况:
虽然能分对,但是置信度分别是[‘0’, 0.8890628]和[‘180’, 0.97985005]。
过短的文本如一个字符:
分类的情况分别是[‘0’, 0.84042734]和[‘180’, 0.9551178]。
PaddleOCR
Awesome multilingual OCR toolkits based on PaddlePaddle (practical ultra lightweight OCR system, support 80+ languages recognition, provide data annotation and synthesis tools, support training and deployment among server, mobile, embedded and IoT devices)
项目地址:https://gitcode.com/gh_mirrors/pa/PaddleOCR
我们在测试大量图片时,有些过长的文本出现了明显的错误,因此我对图像进行了处理:
如果是过长的文本则进行截断,过短的文本则复制扩展成输入图像的尺寸。
修改后过长文本测试效果:[‘0’, 1.0]和[‘180’, 1.0]。
过短文本:[‘0’, 0.9987532]和[‘180’, 0.99973863]。可以明显看出有明显提升。
修改前 | 修改后 | |
---|---|---|
过长-正向 | 0.88 | 1.0 |
过长-反向 | 0.97 | 1.0 |
过短-正向 | 0.84 | 0.99 |
过短-反向 | 0.95 | 0.99 |




Awesome multilingual OCR toolkits based on PaddlePaddle (practical ultra lightweight OCR system, support 80+ languages recognition, provide data annotation and synthesis tools, support training and deployment among server, mobile, embedded and IoT devices)
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