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四则混合运算识别 深度学习应用大赛


参考paper:Recursive Recurrent Nets with Attention Modeling for OCR in the Wild

方法:cnn + rnn 混合卷积网络

椒盐噪声处理方法:

  • 中值滤波法,因为中值滤波对椒盐噪声效果好、
  • trick:若噪声点大的就加大窗口,必要时可再加个判断,比如当前像素值灰度大于某个值时就采用中值或均值

用cnn+rnn,cnn,cnn+rnn+attention 和降噪模型共六个模型进行投票处理,选择票数多的答案进行更改

准确值:0.999805

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