Uniform optical flow model by foveation effect for virtual cylindrical screen algorithm

Sota Shimizu, Takumi Hashizume

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

Abstract

This paper focuses on extending the Virtual Cylindrical Screen (VCS) algorithm for detecting stationary objects inside a VCS, when a sensor moves forward along the optical axis. Effect by foveation in use of the VCS algorithm are simulated and discussed by comparing a pinhole camera (PHC) model with 2 foveation models, that is, a sine curve (SC) model and Advanced Wide Angle Foveated (AdWAF) model. The foveation models reduce the optical flow and also its variation. Correction weight function (CWF) is defined for estimating error of the optical flow computed in each image model. Moreover, Uniform Optical Flow (UOF) model is designed as a foveation model for the VCS algorithm, and its properties are discussed. Accuracy of the optical flow corresponding to the VCS is simulated using CWF. AdWAF model has advantages of accuracy comparing with not only the PHC model but also the SC model when the vΔt /R is less than 0.14. Experiments using the Lucas-Kanade method are demonstrated for the images by UOF model.

Original languageEnglish
Title of host publicationICCAS-SICE 2009 - ICROS-SICE International Joint Conference 2009, Proceedings
Pages1121-1126
Number of pages6
Publication statusPublished - 2009
Externally publishedYes
EventICROS-SICE International Joint Conference 2009, ICCAS-SICE 2009 - Fukuoka
Duration: 2009 Aug 182009 Aug 21

Other

OtherICROS-SICE International Joint Conference 2009, ICCAS-SICE 2009
CityFukuoka
Period09/8/1809/8/21

Fingerprint

Optical flows
Pinhole cameras

Keywords

  • Foveation
  • Optical flow
  • Uniform optical flow model
  • Virtual cylindrical screen

ASJC Scopus subject areas

  • Information Systems
  • Control and Systems Engineering
  • Industrial and Manufacturing Engineering

Cite this

Shimizu, S., & Hashizume, T. (2009). Uniform optical flow model by foveation effect for virtual cylindrical screen algorithm. In ICCAS-SICE 2009 - ICROS-SICE International Joint Conference 2009, Proceedings (pp. 1121-1126). [5335010]

Uniform optical flow model by foveation effect for virtual cylindrical screen algorithm. / Shimizu, Sota; Hashizume, Takumi.

ICCAS-SICE 2009 - ICROS-SICE International Joint Conference 2009, Proceedings. 2009. p. 1121-1126 5335010.

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

Shimizu, S & Hashizume, T 2009, Uniform optical flow model by foveation effect for virtual cylindrical screen algorithm. in ICCAS-SICE 2009 - ICROS-SICE International Joint Conference 2009, Proceedings., 5335010, pp. 1121-1126, ICROS-SICE International Joint Conference 2009, ICCAS-SICE 2009, Fukuoka, 09/8/18.
Shimizu S, Hashizume T. Uniform optical flow model by foveation effect for virtual cylindrical screen algorithm. In ICCAS-SICE 2009 - ICROS-SICE International Joint Conference 2009, Proceedings. 2009. p. 1121-1126. 5335010
Shimizu, Sota ; Hashizume, Takumi. / Uniform optical flow model by foveation effect for virtual cylindrical screen algorithm. ICCAS-SICE 2009 - ICROS-SICE International Joint Conference 2009, Proceedings. 2009. pp. 1121-1126
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