1 #include "main.h"
2 
3 #include <Eigen/CXX11/Tensor>
4 
5 using Eigen::Tensor;
6 
test_single_voxel_patch()7 static void test_single_voxel_patch()
8 {
9   Tensor<float, 5> tensor(4,2,3,5,7);
10   tensor.setRandom();
11   Tensor<float, 5, RowMajor> tensor_row_major = tensor.swap_layout();
12 
13   Tensor<float, 6> single_voxel_patch;
14   single_voxel_patch = tensor.extract_volume_patches(1, 1, 1);
15   VERIFY_IS_EQUAL(single_voxel_patch.dimension(0), 4);
16   VERIFY_IS_EQUAL(single_voxel_patch.dimension(1), 1);
17   VERIFY_IS_EQUAL(single_voxel_patch.dimension(2), 1);
18   VERIFY_IS_EQUAL(single_voxel_patch.dimension(3), 1);
19   VERIFY_IS_EQUAL(single_voxel_patch.dimension(4), 2 * 3 * 5);
20   VERIFY_IS_EQUAL(single_voxel_patch.dimension(5), 7);
21 
22   Tensor<float, 6, RowMajor> single_voxel_patch_row_major;
23   single_voxel_patch_row_major = tensor_row_major.extract_volume_patches(1, 1, 1);
24   VERIFY_IS_EQUAL(single_voxel_patch_row_major.dimension(0), 7);
25   VERIFY_IS_EQUAL(single_voxel_patch_row_major.dimension(1), 2 * 3 * 5);
26   VERIFY_IS_EQUAL(single_voxel_patch_row_major.dimension(2), 1);
27   VERIFY_IS_EQUAL(single_voxel_patch_row_major.dimension(3), 1);
28   VERIFY_IS_EQUAL(single_voxel_patch_row_major.dimension(4), 1);
29   VERIFY_IS_EQUAL(single_voxel_patch_row_major.dimension(5), 4);
30 
31   for (int i = 0; i < tensor.size(); ++i) {
32     VERIFY_IS_EQUAL(tensor.data()[i], single_voxel_patch.data()[i]);
33     VERIFY_IS_EQUAL(tensor_row_major.data()[i], single_voxel_patch_row_major.data()[i]);
34     VERIFY_IS_EQUAL(tensor.data()[i], tensor_row_major.data()[i]);
35   }
36 }
37 
38 
test_entire_volume_patch()39 static void test_entire_volume_patch()
40 {
41   const int depth = 4;
42   const int patch_z = 2;
43   const int patch_y = 3;
44   const int patch_x = 5;
45   const int batch = 7;
46 
47   Tensor<float, 5> tensor(depth, patch_z, patch_y, patch_x, batch);
48   tensor.setRandom();
49   Tensor<float, 5, RowMajor> tensor_row_major = tensor.swap_layout();
50 
51   Tensor<float, 6> entire_volume_patch;
52   entire_volume_patch = tensor.extract_volume_patches(patch_z, patch_y, patch_x);
53   VERIFY_IS_EQUAL(entire_volume_patch.dimension(0), depth);
54   VERIFY_IS_EQUAL(entire_volume_patch.dimension(1), patch_z);
55   VERIFY_IS_EQUAL(entire_volume_patch.dimension(2), patch_y);
56   VERIFY_IS_EQUAL(entire_volume_patch.dimension(3), patch_x);
57   VERIFY_IS_EQUAL(entire_volume_patch.dimension(4), patch_z * patch_y * patch_x);
58   VERIFY_IS_EQUAL(entire_volume_patch.dimension(5), batch);
59 
60   Tensor<float, 6, RowMajor> entire_volume_patch_row_major;
61   entire_volume_patch_row_major = tensor_row_major.extract_volume_patches(patch_z, patch_y, patch_x);
62   VERIFY_IS_EQUAL(entire_volume_patch_row_major.dimension(0), batch);
63   VERIFY_IS_EQUAL(entire_volume_patch_row_major.dimension(1), patch_z * patch_y * patch_x);
64   VERIFY_IS_EQUAL(entire_volume_patch_row_major.dimension(2), patch_x);
65   VERIFY_IS_EQUAL(entire_volume_patch_row_major.dimension(3), patch_y);
66   VERIFY_IS_EQUAL(entire_volume_patch_row_major.dimension(4), patch_z);
67   VERIFY_IS_EQUAL(entire_volume_patch_row_major.dimension(5), depth);
68 
69   const int dz = patch_z - 1;
70   const int dy = patch_y - 1;
71   const int dx = patch_x - 1;
72 
73   const int forward_pad_z = dz - dz / 2;
74   const int forward_pad_y = dy - dy / 2;
75   const int forward_pad_x = dx - dx / 2;
76 
77   for (int pz = 0; pz < patch_z; pz++) {
78     for (int py = 0; py < patch_y; py++) {
79       for (int px = 0; px < patch_x; px++) {
80         const int patchId = pz + patch_z * (py + px * patch_y);
81         for (int z = 0; z < patch_z; z++) {
82           for (int y = 0; y < patch_y; y++) {
83             for (int x = 0; x < patch_x; x++) {
84               for (int b = 0; b < batch; b++) {
85                 for (int d = 0; d < depth; d++) {
86                   float expected = 0.0f;
87                   float expected_row_major = 0.0f;
88                   const int eff_z = z - forward_pad_z + pz;
89                   const int eff_y = y - forward_pad_y + py;
90                   const int eff_x = x - forward_pad_x + px;
91                   if (eff_z >= 0 && eff_y >= 0 && eff_x >= 0 &&
92                       eff_z < patch_z && eff_y < patch_y && eff_x < patch_x) {
93                     expected = tensor(d, eff_z, eff_y, eff_x, b);
94                     expected_row_major = tensor_row_major(b, eff_x, eff_y, eff_z, d);
95                   }
96                   VERIFY_IS_EQUAL(entire_volume_patch(d, z, y, x, patchId, b), expected);
97                   VERIFY_IS_EQUAL(entire_volume_patch_row_major(b, patchId, x, y, z, d), expected_row_major);
98                 }
99               }
100             }
101           }
102         }
103       }
104     }
105   }
106 }
107 
test_cxx11_tensor_volume_patch()108 void test_cxx11_tensor_volume_patch()
109 {
110   CALL_SUBTEST(test_single_voxel_patch());
111   CALL_SUBTEST(test_entire_volume_patch());
112 }
113