The search result changed since you submitted your search request. Documents might be displayed in a different sort order.
  • search hit 3 of 117
Back to Result List

The Convex-Concave Ambiguity in Perspective Shape from Shading

  • Shape from Shading (SFS) is a classic problem in computer vision. In recent years many perspective SFS models have been studied that yield useful SFS approaches when a photographed object is close to the camera. However, while the ambiguities inherent to the classical, orthographic SFS models are well-understood, there has been no discussion of possible ambiguities in perspective SFS models. In this paper we deal with the latter issue. Therefore we adopt a typical perspective SFS setting. We show how to transform the corresponding image irradiance equation into the format of the classical orthographic setting by employing spherical coordinates. In the latter setting we construct a convex-concave ambiguity for perspective SFS. It is to our knowledge the first time in the literature that this type of ambiguity is constructed and verified for a perspective SFS model.

Export metadata

Additional Services

Search Google Scholar
Metadaten
Author: Michael BreußGND, Ashkan Mansouri Yarahmadi, Douglas W. CunninghamORCiD
DOI:https://doi.org/10.3217/978-3-85125-603-1-13
ISBN:978-3-85125-603-1
Title of the source (English):Proceedings of the OAGM Workshop 2018 Medical Image Analysis, May 15 - 16, 2018, Hall/Tyrol, Austria
Publisher:Verlag der TU Graz
Place of publication:Graz
Editor: Martin Welk, Martin Urschler, Peter M. Roth
Document Type:Conference Proceeding
Language:English
Year of publication:2018
Tag:Shape from Shading
First Page:57
Last Page:63
Faculty/Chair:Fakultät 1 MINT - Mathematik, Informatik, Physik, Elektro- und Informationstechnik / FG Praktische Informatik / Graphische Systeme
Fakultät 1 MINT - Mathematik, Informatik, Physik, Elektro- und Informationstechnik / FG Angewandte Mathematik
Einverstanden ✔
Diese Webseite verwendet technisch erforderliche Session-Cookies. Durch die weitere Nutzung der Webseite stimmen Sie diesem zu. Unsere Datenschutzerklärung finden Sie hier.