| 发明名称 | System and method for automatic calculation of scene geometry in crowded video scenes | ||
| 摘要 | A system or method for automatic calculation of scene geometry may include receiving, by a processor, a video stream including a plurality of video frames. A video frame may be divided into blocks, and a vertical vanishing point of the video stream may be determined based on a dominant orientation of detected edges in the blocks. A horizon and scale of the video stream may be estimated based on optical flow of pixels between two consecutive video frames. A set of human heads may be detected in a video frame of the video stream based on the estimated horizon and scale of the video stream. | ||
| 申请公布号 | US9576204(B2) | 申请公布日期 | 2017.02.21 |
| 申请号 | US201514666338 | 申请日期 | 2015.03.24 |
| 申请人 | QOGNIFY LTD. | 发明人 | Goldner Vladimir;Gurwicz Yaniv |
| 分类号 | G06K9/00 | 主分类号 | G06K9/00 |
| 代理机构 | Pearl Cohen Zedek Latzer Baratz LLP | 代理人 | Pearl Cohen Zedek Latzer Baratz LLP |
| 主权项 | 1. A method for automatic calculation of scene geometry, comprising: receiving, by a processor, a video stream including a plurality of video frames; dividing, by the processor, a video frame into blocks; determining a vertical vanishing point of the video stream based on a dominant orientation of detected edges in the blocks; estimating a horizon and scale of the video stream based on optical flow of pixels between two consecutive video frames; and detecting a set of human heads in a video frame of the video stream based on the estimated horizon and scale of the video stream. | ||
| 地址 | Ra'anana IL | ||