Auto-calibrating photometric stereo using ring light constraints

被引：3

作者：

Shiradkar, Rakesh ^{[1
]}

Tan, Ping ^{[1
]}

Ong, Sim Heng ^{[1
]}

机构：

[1] Natl Univ Singapore, Dept Elect & Comp Engn, Singapore 117548, Singapore

来源：

MACHINE VISION AND APPLICATIONS | 2014年 / 25卷 / 03期

关键词：

Photometric stereo; Auto-calibration; Multi-view stereo; Ring light constraints; RECONSTRUCTION; MULTIVIEW;

D O I：

10.1007/s00138-013-0591-0

中图分类号：

TP18 [人工智能理论];

学科分类号：

081104 ; 0812 ; 0835 ; 1405 ;

摘要：

We propose an auto-calibration method for photometric stereo. Our method exploits constraints placed on light sources to recover their positions and the surface normals of an object up to a scaling and planar rotation ambiguity. The ambiguity is resolved with multi-view consistency constraints leading to a Euclidean reconstruction of the geometric shape of the object. Auto-calibration methods are helpful to overcome the limitations imposed by calibrating objects. We evaluate our algorithm with experiments on real world scenes.

引用

页码：801 / 809

页数：9

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