Study on algorithm for night vision panoramic image basing on image segmentation and multimode displaying technology

Zhenhai Zhang*, Kejie Li

*Corresponding author for this work

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

Abstract

Based on single panoramic annular lens optical system and external-low-luminance CCD sensors, 360-degree panoramic night vision image processing hardware platform were established. The night vision panoramic image algorithm was presented, grounding on the image segmentation and multimode displaying technology. The annular image can be unwrapped and corrected to conventional rectangular panorama by the panoramic image unwrapping algorithm. The night vision image enhancement algorithm, based on adaptive piecewise linear gray transformation (APLGT) and Laplacian of Gaussian (LOG) edge detection, were given. APLGT algorithm can be adaptively truncate the image histogram on both ends to obtain a smaller dynamic range so as to enhance the contrast of the night vision image. LOG algorithm can be propitious to find and detect dim small targets in night vision circumstance. After abundant experiment, the algorithm for night vision panoramic image was successfully implemented in TMS320DM642, basing on the image Segmentation and multimode displaying algorithm. And the system can reliably and dynamically detect 360-degree view field of panoramic night vision image.

Original languageEnglish
Title of host publicationInternational Symposium on Photoelectronic Detection and Imaging 2009 - Advances in Infrared Imaging and Applications
DOIs
Publication statusPublished - 2009
Externally publishedYes
EventInternational Symposium on Photoelectronic Detection and Imaging 2009: Advances in Infrared Imaging and Applications - Beijing, China
Duration: 17 Jun 200919 Jun 2009

Publication series

NameProceedings of SPIE - The International Society for Optical Engineering
Volume7383
ISSN (Print)0277-786X

Conference

ConferenceInternational Symposium on Photoelectronic Detection and Imaging 2009: Advances in Infrared Imaging and Applications
Country/TerritoryChina
CityBeijing
Period17/06/0919/06/09

Keywords

  • Image Segmentation & multimode displaying
  • Image enhancement
  • Panoramic annular image
  • TMS320DM642
  • Unwrapped algorithm

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