| Concealed Object Perception and Recognition Using a Photometric Stereo Strategy Recent countries visiting this post |  |
 | 8 | United States |
 | 1 | Russian Federation |
 | 1 | China |
 | 1 | India |
| Concealed Object Perception and Recognition Using a Photometric Stereo Strategy Recent countries visiting this post | |
| 8 | United States |
| 1 | Russian Federation |
| 1 | China |
| 1 | India |