| Presentation | 2016-07-01 Local Motion Removal based Dynamic Camera Calibration for Synthesizing Free Viewpoint Soccer Video Qiang Yao, Keisuke Nonaka, Hiroshi Sankoh, Sei Naito, |
|---|---|
| PDF Download Page |  PDF download Page Link |
| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | Accurate camera parameter is regarded as a key factor in generating free viewpoint video with a high quality. Video registration is the most popular method for moving camera calibration, and it is composed of feature points detection and matching, and homography matrix estimation for camera calibration. However, the main problem in video registration-based moving camera calibration is that the calibration accuracy is very low if the detected feature points are from moving objects. In this paper, we propose a robust camera calibration method for moving camera. The proposed method tracks the feature points along several video frames to construct a trajectory matrix of feature points, and the constructed trajectory matrix is decomposed into a low-rank matrix representing global camera motion and a sparse matrix representing local motion. Therefore, according to such decomposition, local motions of dynamic feature points are removed. Experimental results show that the proposed method achieves more accurate calibration result in terms of both objective and subjective evaluations. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | Free Viewpoint Soccer Video / Moving Camera Calibration / Homography Matrix / Low Rank Decomposition |
| Paper # | IE2016-44 |
| Date of Issue | 2016-06-24 (IE) |
| Conference Information | |
| Committee | IE |
|---|---|
| Conference Date | 2016/7/1(1days) |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | |
| Topics (in Japanese) | (See Japanese page) |
| Topics (in English) | |
| Chair | Seishi Takamura(NTT) |
| Vice Chair | Takayuki Hamamoto(Tokyo Univ. of Science) / Atsuro Ichigaya(NHK) |
| Secretary | Takayuki Hamamoto(NTT) / Atsuro Ichigaya(Chiba Inst. of Tech.) |
| Assistant | Keita Takahashi(Nagoya Univ.) / Kei Kawamura(KDDI R&D Labs.) |
| Paper Information | |
| Registration To | Technical Committee on Image Engineering |
|---|---|
| Language | ENG-JTITLE |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | Local Motion Removal based Dynamic Camera Calibration for Synthesizing Free Viewpoint Soccer Video |
| Sub Title (in English) | |
| Keyword(1) | Free Viewpoint Soccer Video |
| Keyword(2) | Moving Camera Calibration |
| Keyword(3) | Homography Matrix |
| Keyword(4) | Low Rank Decomposition |
| 1st Author's Name | Qiang Yao |
| 1st Author's Affiliation | KDDI R&D Laboratories, Inc.(KDDI Labs) |
| 2nd Author's Name | Keisuke Nonaka |
| 2nd Author's Affiliation | KDDI R&D Laboratories, Inc.(KDDI Labs) |
| 3rd Author's Name | Hiroshi Sankoh |
| 3rd Author's Affiliation | KDDI R&D Laboratories, Inc.(KDDI Labs) |
| 4th Author's Name | Sei Naito |
| 4th Author's Affiliation | KDDI R&D Laboratories, Inc.(KDDI Labs) |
| Date | 2016-07-01 |
| Paper # | IE2016-44 |
| Volume (vol) | vol.116 |
| Number (no) | IE-119 |
| Page | pp.pp.49-53(IE), |
| #Pages | 5 |
| Date of Issue | 2016-06-24 (IE) |