TY - GEN
T1 - Underwater active oneshot scan with static wave pattern and bundle adjustment
AU - Morinaga, Hiroki
AU - Baba, Hirohisa
AU - Visentini-Scarzanella, Marco
AU - Kawasaki, Hiroshi
AU - Furukawa, Ryo
AU - Sagawa, Ryusuke
PY - 2016/1/1
Y1 - 2016/1/1
N2 - Structured Light Systems (SLS) are widely used for various purposes. Recently, a strong demand to apply SLS to underwater applications has emerged. When SLS is used in an air medium, the stereo correspondence problem can be solved efficiently by epipolar geometry due to the co-planarity of the 3D point and its corresponding 2D points on camera/projector planes. However, in underwater environments, the camera and projector are usually set in special housings and refraction occurs at the interfaces between water/glass and glass/air, resulting in invalid conditions for epipolar geometry which strongly affect the correspondence search process. In this paper, we tackle the problem of underwater 3D shape acquisition with SLS. In this paper, we propose a method to perform 3D reconstruction by calibrating the system as if they are in the air at multiple depth. Since refraction cannot be completely described by a polynomial approximation of distortion model, grid based SLS method solve the problem. Finally, we propose a bundle adjustment method to refine the final result. We tested our method with an underwater SLS prototype, consisting of custom-made diffractive optical element (DOE) laser and underwater housings, showing the validity of the proposed approach.
AB - Structured Light Systems (SLS) are widely used for various purposes. Recently, a strong demand to apply SLS to underwater applications has emerged. When SLS is used in an air medium, the stereo correspondence problem can be solved efficiently by epipolar geometry due to the co-planarity of the 3D point and its corresponding 2D points on camera/projector planes. However, in underwater environments, the camera and projector are usually set in special housings and refraction occurs at the interfaces between water/glass and glass/air, resulting in invalid conditions for epipolar geometry which strongly affect the correspondence search process. In this paper, we tackle the problem of underwater 3D shape acquisition with SLS. In this paper, we propose a method to perform 3D reconstruction by calibrating the system as if they are in the air at multiple depth. Since refraction cannot be completely described by a polynomial approximation of distortion model, grid based SLS method solve the problem. Finally, we propose a bundle adjustment method to refine the final result. We tested our method with an underwater SLS prototype, consisting of custom-made diffractive optical element (DOE) laser and underwater housings, showing the validity of the proposed approach.
UR - http://www.scopus.com/inward/record.url?scp=84958999438&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=84958999438&partnerID=8YFLogxK
U2 - 10.1007/978-3-319-29451-3_33
DO - 10.1007/978-3-319-29451-3_33
M3 - Conference contribution
AN - SCOPUS:84958999438
SN - 9783319294506
T3 - Lecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics)
SP - 404
EP - 418
BT - Image and Video Technology - 7th Pacific-Rim Symposium, PSIVT 2015, Revised Selected Papers
A2 - Rivera, Mariano
A2 - McCane, Brendan
A2 - Yu, Xinguo
A2 - Bräunl, Thomas
PB - Springer Verlag
T2 - 7th Pacific-Rim Symposium on Image and Video Technology, PSIVT 2015
Y2 - 25 November 2015 through 27 November 2015
ER -