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Proceedings Paper

A color calibration method for images with infrared crosstalk based on BP neural network
Author(s): Shuoshuo Lin; Hua Zheng; Lingling Xiao; Xiaowen Chen; Jianyong Cai; Xiaodong Liao
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Paper Abstract

This paper describes a novel method for correcting a color cast in an image which contains RGB and near-infrared crosstalk. We name this type of images as four-band images. The algorithm is based on the back propagation neural network. When a four-band image is put into the algorithm, it will use a trained weight matrix to transform this image into the normal one. This matrix is obtained by a BP algorithm which is used to find the implicit relationship between the input image and the corresponding target image. The size of the matrix is determined by the number of hidden layers of the neural network and the number of rows of the pixel matrix of the input and output images. In this paper, we acquire the weight matrix of the input layer to the hidden layer with a size of 506*486 and the weight matrix of the hidden layer to the output layer of 486*506. The camera used herein is a slightly modified CMOS sensor that replaces the IR-Cut filter with an 850 nm bimodal filter. The dataset used in this paper has five pairs of one-to-one correspondence images. One of them is a three-band image with normal color using the original IR-Cut filter, and the other is a four-band image taken by the modified CMOS sensor. The proposed method has been tuned and tested with positive results in this dataset.

Paper Details

Date Published: 6 May 2019
PDF: 9 pages
Proc. SPIE 11069, Tenth International Conference on Graphics and Image Processing (ICGIP 2018), 110692Q (6 May 2019); doi: 10.1117/12.2524263
Show Author Affiliations
Shuoshuo Lin, Fujian Normal Univ. (China)
Hua Zheng, Fujian Normal Univ. (China)
Lingling Xiao, Fujian Normal Univ. (China)
Xiaowen Chen, Fujian Normal Univ. (China)
Jianyong Cai, Fujian Normal Univ. (China)
Xiaodong Liao, Fujian Normal Univ. (China)

Published in SPIE Proceedings Vol. 11069:
Tenth International Conference on Graphics and Image Processing (ICGIP 2018)
Chunming Li; Hui Yu; Zhigeng Pan; Yifei Pu, Editor(s)

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