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Authors: Kousuke Wakabayashi ; Norio Tagawa and Kan Okubo

Affiliation: Tokyo Metropolitan University, Japan

Keyword(s): Depth Recovery, Direct Computation, Shape from Shading, Perspective Projection.

Related Ontology Subjects/Areas/Topics: Computer Vision, Visualization and Computer Graphics ; Early and Biologically-Inspired Vision ; Image and Video Analysis ; Shape Representation and Matching

Abstract: We present a method for recovering shape from shading in which the surface depth is directly computed. The already proposed method solving the same problem assumes that images are captured under the parallel projection, and hence, it can be correctly used only for the relative thin objects compared with the distance from the camera. If this method is formally extended for the perspective projection completely, the complicated calculations for differential are required. This gives rise to unstable recovery. In this study, we examine an extension of this method so as to treat the perspective projection approximately. In order to keep the simplicity of the original method, we propose the simple approximation of the derivative of the surface with respect to the image coordinate.

CC BY-NC-ND 4.0

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Paper citation in several formats:
Wakabayashi, K.; Tagawa, N. and Okubo, K. (2012). DIRECT COMPUTATION OF DEPTH FROM SHADING FOR PERSPECTIVE PROJECTION. In Proceedings of the International Conference on Computer Vision Theory and Applications (VISIGRAPP 2012) - Volume 2: VISAPP; ISBN 978-989-8565-03-7; ISSN 2184-4321, SciTePress, pages 445-448. DOI: 10.5220/0003854804450448

@conference{visapp12,
author={Kousuke Wakabayashi. and Norio Tagawa. and Kan Okubo.},
title={DIRECT COMPUTATION OF DEPTH FROM SHADING FOR PERSPECTIVE PROJECTION},
booktitle={Proceedings of the International Conference on Computer Vision Theory and Applications (VISIGRAPP 2012) - Volume 2: VISAPP},
year={2012},
pages={445-448},
publisher={SciTePress},
organization={INSTICC},
doi={10.5220/0003854804450448},
isbn={978-989-8565-03-7},
issn={2184-4321},
}

TY - CONF

JO - Proceedings of the International Conference on Computer Vision Theory and Applications (VISIGRAPP 2012) - Volume 2: VISAPP
TI - DIRECT COMPUTATION OF DEPTH FROM SHADING FOR PERSPECTIVE PROJECTION
SN - 978-989-8565-03-7
IS - 2184-4321
AU - Wakabayashi, K.
AU - Tagawa, N.
AU - Okubo, K.
PY - 2012
SP - 445
EP - 448
DO - 10.5220/0003854804450448
PB - SciTePress