時分割投射光による実時間高速高精度3次元モデル取得のための複数視点システム(<小特集>イメージセンシング技術とその応用)

概要

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We introduce a multiple-viewpoint 3-D measurement system that is suitable for acquiring high-speed and high-accuracy 3-D model model movie in real-time. The present system consists of multiple range finders, and each one consists of a camera and projector. We use a high-speed 3-D image sensor as a camera and used the range finders to measure various target objects from multiple viewpoints in a time-division manner. We then carried out a general linear calibration and evaluated the range accuracy. We demonstrated acquisition speeds of up to 10.6 range-maps/s for two cameras and 6.1 range-maps/s for three cameras in real-time. Our system is suitable for high-accuracy 3-D model acquisition with, at 1200mm, an error to distance of less than 0.2%. We show the applicability of the present system for when a strong light source is used. The present system is suitable for complete 3-D model acquisition since the detected areas of the overlap in multiple-viewpoint 3-D range finding is small.
社団法人映像情報メディア学会の論文
2008-03-01