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chinese:计算IOU公式错误 #11

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navy63 opened this issue Dec 17, 2019 · 0 comments
Open

chinese:计算IOU公式错误 #11

navy63 opened this issue Dec 17, 2019 · 0 comments

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@navy63
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navy63 commented Dec 17, 2019

这个计算IOU的公式会增加IOU的概率；
正确的公式应该是
intersection = tf.reduce_sum(pred_flat * true_flat, axis=1) + 1e-7
denominator = tf.reduce_sum(
pred_flat, axis=1) + tf.reduce_sum(
true_flat, axis=1) + 1e-7

return tf.reduce_mean(intersection / (denominator-intersection))
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@navy63