[GitHub] squidszyd commented on issue #8531: How to get the correlation result of two feature maps?

[GitBox <gi...@apache.org>]

squidszyd commented on issue #8531: How to get the correlation result of two feature maps?
URL: https://github.com/apache/incubator-mxnet/issues/8531#issuecomment-341863402
 
 
   @zhreshold By correlation, I mean F2 acts like a correlation kernel (or convolution kernel) that slides on F1. For example,
   ```
        1 1 1 2 2
   F2 = 2 3 4 1 1
        0 0 0 2 3 
   
        0 1 0
   F1 = 1 0 1
        0 1 0
   ``` 
   Then, the correlation result should be
   ```
   R = F1 * F2 = 7 5 9
   ```
   where 
   ```
   7 = 1 + 2 + 4 +?
   5 = 1 + 3 +?+ 0
   9 = 2 + 4 + 1 + 2

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