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Proceedings Paper

Research on automatic multispectral images synthesis of space camera
Author(s): Xing-xing Wu; Jin-guo Liu; Huai-de Zhou; De-zhu Kong; Shi-liang Lv
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Paper Abstract

Multilinear CCD Sensor was often used on space cameras to obtain multispectral images with each line representing different band channels. However images of different band channels obtained at the same time didn't coincide as there were spaces between lines. Pixel numbers to be adjusted between images of different channels varied when the space camera worked by swaying forward and backward or adjusted row transfer period to compensate image movement. An automatic multispectral images synthesis algorithm of space camera was put forward on the basis of analysis of such phenomenon. In this algorithm a new evaluation function was used to determine pixel numbers to be adjusted and the image regions of each band channel to be clipped. In this way images of different band channels could be synthesized automatically to obtain an accurate colorful image. This algorithm can be used to dispose a large mount of images from space camera directly without any manual disposal so that efficiency could be improved remarkably. In validation experiments the automatic multispectral images synthesis algorithm was applied in synthesis of images obtained from outside scene experiment of a multispectral space camera. Result of validation experiments proved that the automatic multispectral images synthesis algorithm can realize accurate multispectral images synthesis of space camera and the efficiency can be improved markedly.

Paper Details

Date Published: 11 November 2010
PDF: 6 pages
Proc. SPIE 7850, Optoelectronic Imaging and Multimedia Technology, 78501Z (11 November 2010); doi: 10.1117/12.870308
Show Author Affiliations
Xing-xing Wu, Changchun Institute of Optics, Fine Mechanics and Physics (China)
Jin-guo Liu, Changchun Institute of Optics, Fine Mechanics and Physics (China)
Huai-de Zhou, Changchun Institute of Optics, Fine Mechanics and Physics (China)
De-zhu Kong, Changchun Institute of Optics, Fine Mechanics and Physics (China)
Shi-liang Lv, Changchun Institute of Optics, Fine Mechanics and Physics (China)


Published in SPIE Proceedings Vol. 7850:
Optoelectronic Imaging and Multimedia Technology
Toru Yoshizawa; Ping Wei; Jesse Zheng; Tsutomu Shimura, Editor(s)

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