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

Sota Shimizu, Takumi Hashizume

研究成果: Conference contribution

抜粋

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.

元の言語English
ホスト出版物のタイトルICCAS-SICE 2009 - ICROS-SICE International Joint Conference 2009, Proceedings
ページ1121-1126
ページ数6
出版物ステータスPublished - 2009 12 1
イベントICROS-SICE International Joint Conference 2009, ICCAS-SICE 2009 - Fukuoka, Japan
継続期間: 2009 8 182009 8 21

出版物シリーズ

名前ICCAS-SICE 2009 - ICROS-SICE International Joint Conference 2009, Proceedings

Conference

ConferenceICROS-SICE International Joint Conference 2009, ICCAS-SICE 2009
Japan
Fukuoka
期間09/8/1809/8/21

ASJC Scopus subject areas

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

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  • これを引用

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