| An Analytical Solution to the Perspective-n-Point Problem for Common Planar Camera and for Catadioptric Sensor Recent countries visiting this post |  |
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| An Analytical Solution to the Perspective-n-Point Problem for Common Planar Camera and for Catadioptric Sensor Recent countries visiting this post | |
| 6 | United States |
| 3 | |
| 1 | Sweden |
| 1 | China |