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Proceedings Paper

Estimation method of CCD and CMOS response functions based on a single image
Author(s): Su Qiu; Weiqi Jin
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Paper Abstract

Response function is one of the important characteristics of CCD and CMOS. Traditional measure method of response function need to fulfill strict measurement conditions, and has the shortcoming of low measurement efficiency and high measurement cost. This paper use PCA method to compute 5 eigenvectors corresponding to 5 maximum eigenvalues of the response function space base on 201 existing response functions. Express the existing response functions by the linear combination of the 5 eigenvectors. Combine all the linear coefficient in a probability distribution in the form of Gaussian Mixture Model (GMM). Estimate the parameter of this Gaussian Mixture Model. Base on this GMM, process the color edge pixels clusters in the image, estimate the RGB response functions. This method has high precision and wide applying prospect.

Paper Details

Date Published: 24 November 2009
PDF: 8 pages
Proc. SPIE 7513, 2009 International Conference on Optical Instruments and Technology: Optoelectronic Imaging and Process Technology, 751325 (24 November 2009); doi: 10.1117/12.838024
Show Author Affiliations
Su Qiu, Beijing Institute of Technology (China)
Weiqi Jin, Beijing Institute of Technology (China)


Published in SPIE Proceedings Vol. 7513:
2009 International Conference on Optical Instruments and Technology: Optoelectronic Imaging and Process Technology
Toru Yoshizawa; Ping Wei; Jesse Zheng, Editor(s)

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