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Proceedings Paper

Pixel gray value correction for wide angle view image
Author(s): Xiuhua Zhang; Boqi Liu; Feng Zhou
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Paper Abstract

In wide angel CCD imaging system, for the large distance difference between every object point and the according imaging point, the acquired image intensity is non-uniform. In this paper, to reduce the intensity non-uniformity influence, a pixel gray value correction method based on illuminance and irradiance theory is proposed. The irradiance relation between the object point on-axis and the object point off-axis is analyzed, and a compensation formula is deduced to correct the image intensity. The proposed method is experimented on plenty of images, the results show the effectiveness and robustness of the proposed method.

Paper Details

Date Published: 17 December 2015
PDF: 5 pages
Proc. SPIE 9811, MIPPR 2015: Multispectral Image Acquisition, Processing, and Analysis, 981113 (17 December 2015); doi: 10.1117/12.2204731
Show Author Affiliations
Xiuhua Zhang, Wuhan Institute of Technology (China)
Boqi Liu, Wuhan Institute of Technology (China)
Feng Zhou, East Lake Wuhan New Technology Development Zone, CMC (China)

Published in SPIE Proceedings Vol. 9811:
MIPPR 2015: Multispectral Image Acquisition, Processing, and Analysis
Jinxue Wang; Zhiguo Cao; Jayaram K. Udupa; Henri Maître, Editor(s)

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