Title :
High-speed 3D image acquisition using coded structured light projection
Author :
Ishii, Idaku ; Yamamoto, Kenkichi ; Doi, Kensuke ; Tsuji, Tokuo
Author_Institution :
Hiroshima Univ., Hiroshima
fDate :
Oct. 29 2007-Nov. 2 2007
Abstract :
In various application fields, high-speed cameras are used to analyze high-speed phenomena. Coded structured light projection methods have been proposed for acquiring three-dimensional images. Most of them are not suitable for measuring high-speed phenomena because the errors are caused when the measured objects move due to light projection of multiple patterns. In this paper, we propose a new coded structured light projection method that can select not only a temporal encoding but also a spatial encoding adaptively for obtaining three-dimensional images at a high-speed frame rate. We also develop an evaluation system that uses a DLP projector and an off-line high-speed video camera, and verify the effectiveness of the proposed method by showing the obtained three-dimensional shapes for moving objects.
Keywords :
image coding; image sensors; spatiotemporal phenomena; DLP projector; high-speed 3D image acquisition; high-speed frame rate; offline high-speed video camera; spatial encoding; spatio-temporal selection type coded structured light projection; temporal encoding; Cameras; Encoding; Image analysis; Image coding; Intelligent robots; Notice of Violation; Pixel; Reflective binary codes; Shape measurement; USA Councils;
Conference_Titel :
Intelligent Robots and Systems, 2007. IROS 2007. IEEE/RSJ International Conference on
Conference_Location :
San Diego, CA
Print_ISBN :
978-1-4244-0912-9
Electronic_ISBN :
978-1-4244-0912-9
DOI :
10.1109/IROS.2007.4399180