Revise ExtractImagePatches op - specification (#6105)

* Change example input matrices to tex * Remove leftover matrix template * Remove reference to TF operation
2021-06-15 15:54:00 +02:00 · 2021-06-15 15:54:00 +02:00 · 58eef532e9
commit 58eef532e9
parent b4e6028f8b
1 changed files with 89 additions and 76 deletions
--- a/docs/ops/movement/ExtractImagePatches_3.md
+++ b/docs/ops/movement/ExtractImagePatches_3.md
@ -8,9 +8,7 @@

 **Detailed description**:

-The *ExtractImagePatches* operation is similar to the TensorFlow* operation [ExtractImagePatches](https://www.tensorflow.org/api_docs/python/tf/image/extract_patches).
-
-This op extracts patches of shape `sizes` which are `strides` apart in the input image. The output elements are taken from the input at intervals given by the `rate` argument, as in dilated convolutions.
+The *ExtractImagePatches* operation extracts patches of shape `sizes` which are `strides` apart in the input image. The output elements are taken from the input at intervals given by the `rate` argument, as in dilated convolutions.

 The result is a 4D tensor containing image patches with size `size[0] * size[1] * depth` vectorized in the "depth" dimension.

@ -92,20 +90,23 @@ The "auto_pad" attribute has no effect on the size of each patch, it determines
 Image is a `1 x 1 x 10 x 10` array that contains the numbers 1 through 100. We use the symbol `x` to mark output patches.

 1. `sizes="3,3", strides="5,5", rates="1,1", auto_pad="valid"`
-
-   &nbsp;&nbsp;x &nbsp;&nbsp;x &nbsp;&nbsp;x &nbsp;&nbsp; 4 &nbsp; 5 &nbsp;&nbsp;x &nbsp;&nbsp;x &nbsp;&nbsp;x &nbsp; 9 10    
-   &nbsp;&nbsp;x &nbsp;&nbsp;x &nbsp;&nbsp;x &nbsp;14 15 &nbsp;&nbsp;x &nbsp;&nbsp;x &nbsp;&nbsp;x 19 20  
-   &nbsp;&nbsp;x &nbsp;&nbsp;x &nbsp;&nbsp;x &nbsp;24 25 &nbsp;&nbsp;x &nbsp;&nbsp;x &nbsp;&nbsp;x 29 30  
-  31 32 33 34 35 36 37 38 39 40  
-  41 42 43 44 45 46 47 48 49 50  
-   &nbsp;&nbsp;x &nbsp;&nbsp;x &nbsp;&nbsp;x &nbsp;54 55 &nbsp;&nbsp;x &nbsp;&nbsp;x &nbsp;&nbsp;x 59 60  
-   &nbsp;&nbsp;x &nbsp;&nbsp;x &nbsp;&nbsp;x &nbsp;64 65 &nbsp;&nbsp;x &nbsp;&nbsp;x &nbsp;&nbsp;x 69 70  
-   &nbsp;&nbsp;x &nbsp;&nbsp;x &nbsp;&nbsp;x &nbsp;74 75 &nbsp;&nbsp;x &nbsp;&nbsp;x &nbsp;&nbsp;x 79 80  
-  81 82 83 84 85 86 87 88 89 90  
-  91 92 93 94 95 96 97 98 99 100  
+\f[
+    \begin{bmatrix}
+        x & x & x & 4 & 5 & x & x & x & 9 & 10 \\
+        x & x & x & 14 & 15 & x & x & x & 19 & 20 \\
+        x & x & x & 24 & 25 & x & x & x & 29 & 30 \\
+        31 & 32 & 33 & 34 & 35 & 36 & 37 & 38 & 39 & 40 \\
+        41 & 42 & 43 & 44 & 45 & 46 & 47 & 48 & 49 & 50 \\
+        x & x & x & 54 & 55 & x & x & x & 59 & 60 \\
+        x & x & x & 64 & 65 & x & x & x & 69 & 70 \\
+        x & x & x & 74 & 75 & x & x & x & 79 & 80 \\
+        81 & 82 & 83 & 84 & 85 & 86 & 87 & 88 & 89 & 90 \\
+        91 & 92 & 93 & 94 & 95 & 96 & 79 & 98 & 99 & 100
+    \end{bmatrix}
+\f]

  output:  
-
+```
    [[[[ 1  6]
       [51 56]]

@ -132,24 +133,27 @@ Image is a `1 x 1 x 10 x 10` array that contains the numbers 1 through 100. We u

      [[23 28]
       [73 78]]]] 
-
+```
  output shape: `[1, 9, 2, 2]`
  
 2. `sizes="4,4", strides="8,8", rates="1,1", auto_pad="valid"`
-
-   &nbsp;&nbsp;x &nbsp;&nbsp;x &nbsp;&nbsp;x &nbsp;&nbsp;x &nbsp;&nbsp;&nbsp;5 &nbsp;&nbsp;6 &nbsp;&nbsp;7 &nbsp;&nbsp;8 &nbsp;&nbsp;9 10  
-   &nbsp;&nbsp;x &nbsp;&nbsp;x &nbsp;&nbsp;x &nbsp;&nbsp;x &nbsp;15 16 17 18 19 20  
-   &nbsp;&nbsp;x &nbsp;&nbsp;x &nbsp;&nbsp;x &nbsp;&nbsp;x &nbsp;25 26 27 28 29 30  
-   &nbsp;&nbsp;x &nbsp;&nbsp;x &nbsp;&nbsp;x &nbsp;&nbsp;x &nbsp;35 36 37 38 39 40  
-  41 42 43 44 45 46 47 48 49 50  
-  51 52 53 54 55 56 57 58 59 60  
-  61 62 63 64 65 66 67 68 69 70  
-  71 72 73 74 75 76 77 78 79 80  
-  81 82 83 84 85 86 87 88 89 90  
-  91 92 93 94 95 96 97 98 99 100  
+\f[
+    \begin{bmatrix}
+        x & x & x & x & 5 & 6 & 7 & 8 & 9 & 10 \\
+        x & x & x & x & 15 & 16 & 17 & 18 & 19 & 20 \\
+        x & x & x & x & 25 & 26 & 27 & 28 & 29 & 30 \\
+        x & x & x & x & 35 & 36 & 37 & 38 & 39 & 40 \\
+        41 & 42 & 43 & 44 & 45 & 46 & 47 & 48 & 49 & 50 \\
+        51 & 52 & 53 & 54 & 55 & 56 & 57 & 58 & 59 & 60 \\
+        61 & 62 & 63 & 64 & 65 & 66 & 67 & 68 & 69 & 70 \\
+        71 & 72 & 73 & 74 & 75 & 76 & 77 & 78 & 79 & 80 \\
+        81 & 82 & 83 & 84 & 85 & 86 & 87 & 88 & 89 & 90 \\
+        91 & 92 & 93 & 94 & 95 & 96 & 79 & 98 & 99 & 100
+    \end{bmatrix}
+\f]
  
  output:  
-
+``` 
     [[[[ 1]]

      [[ 2]]
@ -181,27 +185,29 @@ Image is a `1 x 1 x 10 x 10` array that contains the numbers 1 through 100. We u
      [[33]]

      [[34]]]]
-      
+```
  output shape: `[1, 16, 1, 1]`

 3. `sizes="4,4", strides="9,9", rates="1,1", auto_pad="same_upper"`
-
-   &nbsp;&nbsp;x &nbsp;&nbsp;x &nbsp;&nbsp;x &nbsp;&nbsp;x &nbsp;&nbsp;&nbsp;0 &nbsp;&nbsp;0 &nbsp;&nbsp;0 &nbsp;&nbsp;0 &nbsp;&nbsp;0 &nbsp;&nbsp;x &nbsp;&nbsp;x &nbsp;&nbsp;x &nbsp;&nbsp;x  
-   &nbsp;&nbsp;x &nbsp;&nbsp;x &nbsp;&nbsp;x &nbsp;&nbsp;x &nbsp;&nbsp;&nbsp;4 &nbsp;&nbsp;5 &nbsp;&nbsp;6 &nbsp;&nbsp;7 &nbsp;&nbsp;8 &nbsp;&nbsp;x &nbsp;&nbsp;x &nbsp;&nbsp;x &nbsp;&nbsp;x  
-   &nbsp;&nbsp;x &nbsp;&nbsp;x &nbsp;&nbsp;x &nbsp;&nbsp;x &nbsp;14 15 16 17 18 &nbsp;&nbsp;x &nbsp;&nbsp;x &nbsp;&nbsp;x &nbsp;&nbsp;x  
-   &nbsp;&nbsp;x &nbsp;&nbsp;x &nbsp;&nbsp;x &nbsp;&nbsp;x &nbsp;24 25 26 27 28 &nbsp;&nbsp;x &nbsp;&nbsp;x &nbsp;&nbsp;x &nbsp;&nbsp;x  
-   &nbsp;&nbsp;0 31 32 33 34 35 36 37 38 39 40 &nbsp;&nbsp;0 &nbsp;&nbsp;0  
-   &nbsp;&nbsp;0 41 42 43 44 45 46 47 48 49 50 &nbsp;&nbsp;0 &nbsp;&nbsp;0  
-   &nbsp;&nbsp;0 51 52 53 54 55 56 57 58 59 60 &nbsp;&nbsp;0 &nbsp;&nbsp;0  
-   &nbsp;&nbsp;0 61 62 63 64 65 66 67 68 69 70 &nbsp;&nbsp;0 &nbsp;&nbsp;0  
-   &nbsp;&nbsp;0 71 72 73 74 75 76 77 78 79 80 &nbsp;&nbsp;0 &nbsp;&nbsp;0  
-   &nbsp;&nbsp;x &nbsp;&nbsp;x &nbsp;&nbsp;x &nbsp;&nbsp;x &nbsp;84 85 86 87 88 &nbsp;&nbsp;x &nbsp;&nbsp;x &nbsp;&nbsp;x &nbsp;&nbsp;x  
-   &nbsp;&nbsp;x &nbsp;&nbsp;x &nbsp;&nbsp;x &nbsp;&nbsp;x &nbsp;94 95 96 97 98 &nbsp;&nbsp;x &nbsp;&nbsp;x &nbsp;&nbsp;x &nbsp;&nbsp;x  
-   &nbsp;&nbsp;x &nbsp;&nbsp;x &nbsp;&nbsp;x &nbsp;&nbsp;x &nbsp;&nbsp;&nbsp;0 &nbsp;&nbsp;0 &nbsp;&nbsp;0 &nbsp;&nbsp;0 &nbsp;&nbsp;0 &nbsp;&nbsp;x &nbsp;&nbsp;x &nbsp;&nbsp;x &nbsp;&nbsp;x  
-   &nbsp;&nbsp;x &nbsp;&nbsp;x &nbsp;&nbsp;x &nbsp;&nbsp;x &nbsp;&nbsp;&nbsp;0 &nbsp;&nbsp;0 &nbsp;&nbsp;0 &nbsp;&nbsp;0 &nbsp;&nbsp;0 &nbsp;&nbsp;x &nbsp;&nbsp;x &nbsp;&nbsp;x &nbsp;&nbsp;x    
-
+\f[
+    \begin{bmatrix}
+        x & x & x & x & 0 & 0 & 0 & 0 & 0 & x & x & x & x\\
+        x & x & x & x & 4 & 5 & 6 & 7 & 8 & x & x & x & x\\
+        x & x & x & x & 14 & 15 & 16 & 17 & 18 & x & x & x & x\\
+        x & x & x & x & 24 & 25 & 26 & 27 & 28 & x & x & x & x\\
+        0 & 31 & 32 & 33 & 34 & 35 & 36 & 37 & 38 & 39 & 40 & 0 & 0\\
+        0 & 41 & 42 & 43 & 44 & 45 & 46 & 47 & 48 & 49 & 50 & 0 & 0\\
+        0 & 51 & 52 & 53 & 54 & 55 & 56 & 57 & 58 & 59 & 60 & 0 & 0\\
+        0 & 61 & 62 & 63 & 64 & 65 & 66 & 67 & 68 & 69 & 70 & 0 & 0\\
+        0 & 71 & 72 & 73 & 74 & 75 & 76 & 77 & 78 & 79 & 80 & 0 & 0\\
+        x & x & x & x & 84 & 85 & 86 & 87 & 88 & x & x & x & x\\
+        x & x & x & x & 94 & 95 & 96 & 79 & 98 & x & x & x & x\\
+        x & x & x & x & 0 & 0 & 0 & 0 & 0 & x & x & x & x\\
+        x & x & x & x & 0 & 0 & 0 & 0 & 0 & x & x & x & x
+    \end{bmatrix}
+\f]
  output:  
-
+```
    [[[[  0   0]
       [  0  89]]

@ -249,25 +255,28 @@ Image is a `1 x 1 x 10 x 10` array that contains the numbers 1 through 100. We u

      [[ 23   0]
       [  0   0]]]] 
-
+```
  output shape: `[1, 16, 2, 2]`

 4. `sizes="3,3", strides="5,5", rates="2,2", auto_pad="valid"`  
 This time we use the symbols `x`, `y`, `z` and `k` to distinguish the patches:
-  
-   &nbsp;&nbsp;x &nbsp;&nbsp;2 &nbsp;&nbsp;x &nbsp;&nbsp;4 &nbsp;&nbsp;x &nbsp;&nbsp;y &nbsp;&nbsp;7 &nbsp;&nbsp;y &nbsp;&nbsp;9 &nbsp;&nbsp;y  
-  11 12 13 14 15 16 17 18 19 20  
-   &nbsp;&nbsp;x &nbsp;22 &nbsp;&nbsp;x 24 &nbsp;&nbsp;x &nbsp;&nbsp;y 27 &nbsp;&nbsp;y 29 &nbsp;&nbsp;y  
-  31 32 33 34 35 36 37 38 39 40  
-   &nbsp;&nbsp;x &nbsp;42 &nbsp;&nbsp;x 44 &nbsp;&nbsp;x &nbsp;&nbsp;y 47 &nbsp;&nbsp;y 49 &nbsp;&nbsp;y  
-   &nbsp;&nbsp;z &nbsp;52 &nbsp;&nbsp;z 54 &nbsp;&nbsp;z &nbsp;&nbsp;k 57 &nbsp;&nbsp;k 59 &nbsp;&nbsp;k  
-  61 62 63 64 65 66 67 68 69 70  
-   &nbsp;&nbsp;z &nbsp;72 &nbsp;&nbsp;z 74 &nbsp;&nbsp;z &nbsp;&nbsp;k 77 &nbsp;&nbsp;k 79 &nbsp;&nbsp;k  
-  81 82 83 84 85 86 87 88 89 90  
-   &nbsp;&nbsp;z &nbsp;92 &nbsp;&nbsp;z 94 &nbsp;&nbsp;z &nbsp;&nbsp;k 97 &nbsp;&nbsp;k 99 &nbsp;&nbsp;k
+\f[
+    \begin{bmatrix}
+        x & 2 & x & 4 & x & y & 7 & y & 9 & y \\
+        11 & 12 & 13 & 14 & 15 & 16 & 17 & 18 & 19 & 20 \\
+        x & 22 & x & 24 & x & y & 27 & y & 29 & y \\
+        31 & 32 & 33 & 34 & 35 & 36 & 37 & 38 & 39 & 40 \\
+        x & 42 & x & 44 & x & y & 47 & y & 49 & y \\
+        z & 52 & z & 54 & z & k & 57 & k & 59 & k \\
+        61 & 62 & 63 & 64 & 65 & 66 & 67 & 68 & 69 & 70 \\
+        z & 72 & z & 74 & z & k & 77 & k & 79 & k \\
+        81 & 82 & 83 & 84 & 85 & 86 & 87 & 88 & 89 & 90 \\
+        z & 92 & z & 94 & z & k & 79 & k & 99 & k
+    \end{bmatrix}
+\f]

  output:
-
+```
    [[[[  1   6]
       [ 51  56]]

@ -294,26 +303,30 @@ This time we use the symbols `x`, `y`, `z` and `k` to distinguish the patches:

      [[ 45  50]
       [ 95 100]]]] 
-
+```
  output_shape: `[1, 9, 2, 2]`

 5. `sizes="2,2", strides="3,3", rates="1,1", auto_pad="valid"`  
 Image is a `1 x 2 x 5 x 5` array that contains two feature maps where feature map with coordinate 0 contains numbers in a range `[1, 25]` and feature map with coordinate 1 contains numbers in a range `[26, 50]`  

-   &nbsp;&nbsp;x &nbsp;&nbsp;x &nbsp;&nbsp;3 &nbsp;&nbsp;x &nbsp;&nbsp;x  
-   &nbsp;&nbsp;6 &nbsp;&nbsp;7 &nbsp;&nbsp;8 &nbsp;&nbsp;x &nbsp;&nbsp;x  
-  11 12 13 14 15  
-   &nbsp;&nbsp;x &nbsp;&nbsp;x &nbsp;18 &nbsp;&nbsp;x &nbsp;&nbsp;x  
-   &nbsp;&nbsp;x &nbsp;&nbsp;x &nbsp;23 &nbsp;&nbsp;x &nbsp;&nbsp;x  
-  
-   &nbsp;&nbsp;x &nbsp;&nbsp;x &nbsp;28 &nbsp;&nbsp;x &nbsp;&nbsp;x  
-   &nbsp;&nbsp;x &nbsp;&nbsp;x &nbsp;33 &nbsp;&nbsp;x &nbsp;&nbsp;x  
-  36 37 38 39 40  
-   &nbsp;&nbsp;x &nbsp;&nbsp;x &nbsp;43 &nbsp;&nbsp;x &nbsp;&nbsp;x  
-   &nbsp;&nbsp;x &nbsp;&nbsp;x &nbsp;48 &nbsp;&nbsp;x &nbsp;&nbsp;x  
-
+\f[
+    \begin{bmatrix}
+        x & x & 3 & x & x\\
+        x & x & 8 & x & x\\
+        11 & 12 & 13 & 14 & 15\\
+        x & x & 18 & x & x\\
+        x & x & 23 & x & x
+    \end{bmatrix}\\
+    \begin{bmatrix}
+        x & x & 28 & x & x\\
+        x & x & 33 & x & x\\
+        36 & 37 & 38 & 39 & 40\\
+        x & x & 43 & x & x\\
+        x & x & 48 & x & x
+    \end{bmatrix}
+\f]
  output:
-
+```
    [[[[ 1  4]
       [16 19]]

@ -337,5 +350,5 @@ Image is a `1 x 2 x 5 x 5` array that contains two feature maps where feature ma

      [[32 35]
       [47 50]]]] 
-   
+``` 
  output shape: `[1, 8, 2, 2]`