A novel method for the calibration of an LED-based photometric stereo system

Author

Limin Xie ; Zhan Song ; Xinhan Huang

Author_Institution

Sch. of Autom., Huazhong Univ. of Sci. &Technol., Huazhong, China

fYear

2013

fDate

26-28 Aug. 2013

Firstpage

780

Lastpage

783

Abstract

Photometric stereo (PS) is an important 3D reconstruction means in computer vision domain. Traditional PS-based techniques are usually assumed with infinity point light source and parallel lighting directions. In this paper, a PS system is established with some LED lamps, and the calibration method for the near light source is investigated. The shaded image and the spatial geometry of the object are used to estimate the position of the near light source as well as their directions. Real experiments are implemented to demonstrate its feasibility and 3D reconstruction accuracy.

Keywords

LED lamps; calibration; lighting; photometric light sources; 3D reconstruction; LED lamps; calibration method; computer vision domain; infinity point light source; near light source; parallel lighting direction; photometric stereo system; spatial geometry; Calibration; Image reconstruction; Light emitting diodes; Light sources; Lighting; Surface reconstruction; Three-dimensional displays; 3D reconstruction; Lighting direction calibration; near-filed light source; photometric stereo;

fLanguage

English

Publisher

ieee

Conference_Titel

Information and Automation (ICIA), 2013 IEEE International Conference on

Conference_Location

Yinchuan

Type

conf

DOI

10.1109/ICInfA.2013.6720399

Filename

6720399