Equivalence of oblique and frontal illumination in perspective shape from shading

Chi Kin Chow; Shiu Yin Yuen

doi:10.1109/ICMV.2007.4469264

Equivalence of oblique and frontal illumination in perspective shape from shading

Department of Electrical Engineering

Research output: Chapters, Conference Papers, Creative and Literary Works › RGC 32 - Refereed conference paper (with host publication) › peer-review

2 Citations (Scopus)

Abstract

In this paper, it is shown that any oblique illumination shape-from-shading problem under perspective projection for Lambertian reflection and a single distant light source can be converted to an equivalent frontal illumination problem by a simple nonlinear intensity transformation which is equivalent to a rectification in stereo vision. Remarkably, it involves no approximation of depth. The method is evaluated on perspective shape-from-shading involving wide range of oblique angles. © 2007 IEEE.

Original language	English
Title of host publication	Proceedings - International Conference on Machine Vision, ICMV 2007
Pages	7-11
DOIs	https://doi.org/10.1109/ICMV.2007.4469264
Publication status	Published - 2007
Event	International Conference on Machine Vision, ICMV 2007 - Islamabad, Pakistan Duration: 28 Dec 2007 → 29 Dec 2007

Conference

Conference	International Conference on Machine Vision, ICMV 2007
Place	Pakistan
City	Islamabad
Period	28/12/07 → 29/12/07

Research Keywords

Oblique illumination
Perspective projection
Rectification
Shape from shading

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10.1109/ICMV.2007.4469264

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title = "Equivalence of oblique and frontal illumination in perspective shape from shading",

abstract = "In this paper, it is shown that any oblique illumination shape-from-shading problem under perspective projection for Lambertian reflection and a single distant light source can be converted to an equivalent frontal illumination problem by a simple nonlinear intensity transformation which is equivalent to a rectification in stereo vision. Remarkably, it involves no approximation of depth. The method is evaluated on perspective shape-from-shading involving wide range of oblique angles. {\textcopyright} 2007 IEEE.",

keywords = "Oblique illumination, Perspective projection, Rectification, Shape from shading",

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doi = "10.1109/ICMV.2007.4469264",

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AU - Chow, Chi Kin

AU - Yuen, Shiu Yin

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AB - In this paper, it is shown that any oblique illumination shape-from-shading problem under perspective projection for Lambertian reflection and a single distant light source can be converted to an equivalent frontal illumination problem by a simple nonlinear intensity transformation which is equivalent to a rectification in stereo vision. Remarkably, it involves no approximation of depth. The method is evaluated on perspective shape-from-shading involving wide range of oblique angles. © 2007 IEEE.

KW - Oblique illumination

KW - Perspective projection

KW - Rectification

KW - Shape from shading

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DO - 10.1109/ICMV.2007.4469264

M3 - RGC 32 - Refereed conference paper (with host publication)

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EP - 11

BT - Proceedings - International Conference on Machine Vision, ICMV 2007

T2 - International Conference on Machine Vision, ICMV 2007

Y2 - 28 December 2007 through 29 December 2007

ER -

Equivalence of oblique and frontal illumination in perspective shape from shading

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