| 講演抄録／キーワード |
| 講演名 |
2016-11-17 16:30
［ポスター講演］Dynamic Photometric Stereo Method using Multi-Tap CMOS Image Sensor
○Takuya Yoda・Hajime Nagahara・Rin-ichiro Taniguchi（Kyushu Univ.）・Keiichiro Kagawa・Keita Yasutomi・Shoji Kawahito（Shizuoka Univ.） |
| 抄録 |
（和） |
Photometric stereo enables the estimation of surface normals from images that were captured using different known lighting directions. The classical photometric stereo method requires at least three images to determine the normals of a given scene. This method therefore cannot be applied to a dynamic scene, because it is assumed that the scene should remain static while the required images are captured. We present a dynamic photometric stereo method to estimate the surface normals in a dynamic scene. We use a multi-tap CMOS image sensor to capture the input images for the photometric stereo method. The image sensor can divide the electrons from the photodiode of a single pixel into different taps of exposures, and can therefore capture multiple images under different lighting conditions with almost the same timing. We implemented a prototype camera that was synchronized with a lighting system, and subsequently realized photometric stereo of a dynamic scene. |
| （英） |
Photometric stereo enables the estimation of surface normals from images that were captured using different known lighting directions. The classical photometric stereo method requires at least three images to determine the normals of a given scene. This method therefore cannot be applied to a dynamic scene, because it is assumed that the scene should remain static while the required images are captured. We present a dynamic photometric stereo method to estimate the surface normals in a dynamic scene. We use a multi-tap CMOS image sensor to capture the input images for the photometric stereo method. The image sensor can divide the electrons from the photodiode of a single pixel into different taps of exposures, and can therefore capture multiple images under different lighting conditions with almost the same timing. We implemented a prototype camera that was synchronized with a lighting system, and subsequently realized photometric stereo of a dynamic scene. |
| キーワード |
（和） |
Computational Photography / Photometric Stereo / surface normal / CMOS image sensor / / / / |
| （英） |
Computational Photography / Photometric Stereo / surface normal / CMOS image sensor / / / / |
| 文献情報 |
映情学技報, vol. 40, no. 40, IST2016-48, pp. 1-2, 2016年11月. |
| 資料番号 |
IST2016-48 |
| 発行日 |
2016-11-10 (IST) |
| ISSN |
Print edition: ISSN 1342-6893 Online edition: ISSN 2424-1970 |
| PDFダウンロード |
|