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4 August 2009 Study on algorithm for night vision panoramic image basing on image segmentation and multimode displaying technology
Zhenhai Zhang, Kejie Li
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Proceedings Volume 7383, International Symposium on Photoelectronic Detection and Imaging 2009: Advances in Infrared Imaging and Applications; 738335 (2009) https://doi.org/10.1117/12.835005
Event: International Symposium on Photoelectronic Detection and Imaging 2009, 2009, Beijing, China
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.
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Zhenhai Zhang and Kejie Li "Study on algorithm for night vision panoramic image basing on image segmentation and multimode displaying technology", Proc. SPIE 7383, International Symposium on Photoelectronic Detection and Imaging 2009: Advances in Infrared Imaging and Applications, 738335 (4 August 2009); https://doi.org/10.1117/12.835005
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KEYWORDS
Image enhancement
Panoramic photography
Night vision
Image segmentation
Image processing
Image processing algorithms and systems
Detection and tracking algorithms
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