Feasibility of an asymmetric hyperboloid mirror for surveillance systems

Hong Fa Ho, Meng Luen Wu, Pei Yung Hsiao, Guan An Chen

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

Abstract

Omnidirectional camera is useful for surveillance because the camera captures surrounding images at a time. However, when this kind of camera is installed at the corners, such as room entrance or walls, part of its surrounding may be occluded and the advantage of the camera cannot be fully utilized. To solve the problem, in this paper, we have proposed a new type of mirror for omnidirectional cameras, which is an asymmetric hyperboloid mirror. The mirror is divided into multiple parts. Some parts of them are tall and thin, and others are short and wide, to make it be adaptable to various kinds of environments. The tall and thin hyperboloid is lower in imaging quality but better in the range of view, while the short and wide hyperboloid has higher imaging quality but with less range of view. In this paper, the model of hyperboloid mirror and its projection formula are presented. The experimental results show how the adjustments of hyperboloid parameters affect the imaging quality and the range of view. Besides the imaging quality is less being influenced than the range of view.

Original languageEnglish
Title of host publication2015 IEEE International Conference on Digital Signal Processing, DSP 2015
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages868-872
Number of pages5
ISBN (Electronic)9781479980581, 9781479980581
DOIs
Publication statusPublished - 2015 Sep 9
EventIEEE International Conference on Digital Signal Processing, DSP 2015 - Singapore, Singapore
Duration: 2015 Jul 212015 Jul 24

Publication series

NameInternational Conference on Digital Signal Processing, DSP
Volume2015-September

Other

OtherIEEE International Conference on Digital Signal Processing, DSP 2015
CountrySingapore
CitySingapore
Period15/7/2115/7/24

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Keywords

  • asymmetric mirror
  • hyperboloid mirror
  • omnidirectional camera

ASJC Scopus subject areas

  • Signal Processing

Cite this

Ho, H. F., Wu, M. L., Hsiao, P. Y., & Chen, G. A. (2015). Feasibility of an asymmetric hyperboloid mirror for surveillance systems. In 2015 IEEE International Conference on Digital Signal Processing, DSP 2015 (pp. 868-872). [7252000] (International Conference on Digital Signal Processing, DSP; Vol. 2015-September). Institute of Electrical and Electronics Engineers Inc.. https://doi.org/10.1109/ICDSP.2015.7252000