TY - GEN
T1 - Structured light with coded aperture for wide range 3D measurement
AU - Kawasaki, Hiroshi
AU - Horita, Yuuki
AU - Morinaga, Hiroki
AU - Matugano, Yuuki
AU - Ono, Satoshi
AU - Kimura, Makoto
AU - Takane, Yasuo
PY - 2012/12/1
Y1 - 2012/12/1
N2 - In this paper, we propose an active 3D measurement method using structured light system, which can measure wide range of depth. General structured light system requires correspondence between projection patterns and camera observed patterns. Hence, both the projected pattern and the camera image should be in focus on the target. This condition makes a severe limitation on depth range of 3D measurement. Our technique resolves the range limitation by using coded aperture (CA) on projector. It can be understood as a structured light system using Depth from Defocus (DfD) technique, in which defocus of projected light pattern is utilized. By allowing blurry pattern of projection, the measurement range is extended compared to common structured light system. Moreover, CA efficiently improves its accuracy.
AB - In this paper, we propose an active 3D measurement method using structured light system, which can measure wide range of depth. General structured light system requires correspondence between projection patterns and camera observed patterns. Hence, both the projected pattern and the camera image should be in focus on the target. This condition makes a severe limitation on depth range of 3D measurement. Our technique resolves the range limitation by using coded aperture (CA) on projector. It can be understood as a structured light system using Depth from Defocus (DfD) technique, in which defocus of projected light pattern is utilized. By allowing blurry pattern of projection, the measurement range is extended compared to common structured light system. Moreover, CA efficiently improves its accuracy.
UR - http://www.scopus.com/inward/record.url?scp=84875827000&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=84875827000&partnerID=8YFLogxK
U2 - 10.1109/ICIP.2012.6467475
DO - 10.1109/ICIP.2012.6467475
M3 - Conference contribution
AN - SCOPUS:84875827000
SN - 9781467325332
T3 - Proceedings - International Conference on Image Processing, ICIP
SP - 2777
EP - 2780
BT - 2012 IEEE International Conference on Image Processing, ICIP 2012 - Proceedings
T2 - 2012 19th IEEE International Conference on Image Processing, ICIP 2012
Y2 - 30 September 2012 through 3 October 2012
ER -