Uncalibrated Photometric Stereo Using Quadric Surfaces with Two Cameras

Takumi Nasu, Tsuyoshi Migita, Takeshi Shakunaga, Norikazu Takahashi

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

Abstract

Inverse rendering is a method for estimating object shapes and lighting conditions from a set of images. In the present paper, we propose an uncalibrated photometric stereo method that approximates the shapes of the target objects using quadric surfaces (ellipsoids or hyperboloids), and this shape representation allows us to use multiple cameras in order to reduce the GBR ambiguity. The proposed method uses the Levenberg-Marquardt method to minimize the differences between the input images and generated images calculated based on the estimated parameters and the image formation model. It is important to define each term in the cost function depending on the inside or outside of the contour of the estimated quadric surface and/or the target object. The proposed method has been verified on several sets of real images, namely, Vase, Grapes, and Snacks, and we found that the method required less than 100 iterations. On the other hand, there is room for improvement regarding the accuracy of the estimation by taking into account the shadows of the target objects and using a more advanced reflection model.

Original languageEnglish
Title of host publicationFrontiers of Computer Vision - 26th International Workshop, IW-FCV 2020, Revised Selected Papers
EditorsWataru Ohyama, Soon Ki Jung
PublisherSpringer
Pages318-332
Number of pages15
ISBN (Print)9789811548178
DOIs
Publication statusPublished - 2020
EventInternational Workshop on Frontiers of Computer Vision, IW-FCV 2020 - Ibusuki, Japan
Duration: Feb 20 2020Feb 22 2020

Publication series

NameCommunications in Computer and Information Science
Volume1212 CCIS
ISSN (Print)1865-0929
ISSN (Electronic)1865-0937

Conference

ConferenceInternational Workshop on Frontiers of Computer Vision, IW-FCV 2020
Country/TerritoryJapan
CityIbusuki
Period2/20/202/22/20

Keywords

  • Inverse rendering
  • Levenberg-Marquardt method
  • Multiple view images
  • Quadric surface
  • Uncalibrated photometric stereo

ASJC Scopus subject areas

  • Computer Science(all)
  • Mathematics(all)

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