Alternating optimization for lambertian photometric stereo model with unknown lighting directions

Khrystyna Kyrgyzova, Lorène Allano, Michaël Aupetit

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

Photometric stereo is a technique of surface reconstruction using several object images made with a fixed camera position and varying illumination directions. Reconstructed surfaces can have complex reflecting properties which are unknown a priori and often simplified by Lambertian model (reflecting light uniformly in all directions). Such simplification leads to certain inaccuracy of reconstruction but in most cases is sufficient to obtain general object relief important for further recognition. Not only surface properties but also lighting sources utilized for each image acquisition can be very complex for modeling, or even unknown. Our work demonstrates how to find surface normals from Lambertian photometric stereo model using color images made with a priori unknown lighting directions. Evaluation of model components is based on an alternating optimization approach.

Original languageEnglish
Title of host publicationComputer Analysis of Images and Patterns - 15th International Conference, CAIP 2013, Proceedings
Pages354-361
Number of pages8
EditionPART 2
DOIs
Publication statusPublished - 26 Sep 2013
Event15th International Conference on Computer Analysis of Images and Patterns, CAIP 2013 - York, United Kingdom
Duration: 27 Aug 201329 Aug 2013

Publication series

NameLecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics)
NumberPART 2
Volume8048 LNCS
ISSN (Print)0302-9743
ISSN (Electronic)1611-3349

Conference

Conference15th International Conference on Computer Analysis of Images and Patterns, CAIP 2013
CountryUnited Kingdom
CityYork
Period27/8/1329/8/13

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Keywords

  • Lambertian reflectance model
  • alternating optimization
  • photometric stereo
  • surface normals

ASJC Scopus subject areas

  • Theoretical Computer Science
  • Computer Science(all)

Cite this

Kyrgyzova, K., Allano, L., & Aupetit, M. (2013). Alternating optimization for lambertian photometric stereo model with unknown lighting directions. In Computer Analysis of Images and Patterns - 15th International Conference, CAIP 2013, Proceedings (PART 2 ed., pp. 354-361). (Lecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics); Vol. 8048 LNCS, No. PART 2). https://doi.org/10.1007/978-3-642-40246-3_44