| A Panorama-Based Technique for Annotation Overlay and Its Real-Time Implementation Recent countries visiting this post |  |
 | 8 | United States |
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| A Panorama-Based Technique for Annotation Overlay and Its Real-Time Implementation Recent countries visiting this post | |
| 8 | United States |
| 1 | Sweden |
| 1 | Poland |
| 1 | Japan |