Novel algorithm to compensate nonlinear response of photo detector to improve quality of image reconstruction for compressed sensing

作者：Zhuang Jiayan^*; Chen Qian; He Weiji; Feng Weiyi

来源：Optical Engineering, 2013, 52(4): 043204.

DOI：10.1117/1.OE.52.4.043204

• compressed sensing
• detector response
• nonlinear system
• imaging processing

In imaging systems based on compressed sensing, error in the measured data is incurred due to the nonlinear response of the photo detector, which affects the quality of the reconstructed images. We propose an algorithm to compensate the nonlinear response from the detector. The compensation is based on the detector response curve on the measured data. The theoretical analysis and simulation results show that this algorithm can greatly reduce the reconstruction errors caused by the detector's nonlinear response. Furthermore the peak signal-to-noise ratio of the reconstructed image and the system reconstruction rate have been significantly improved, while the fine feature of the images is better preserved and reconstructed as compared to that without using the algorithm. (C) The Authors. Published by SPIE under a Creative Commons Attribution 3.0 Unported License. Distribution or reproduction of this work in whole or in part requires full attribution of the original publication, including its DOI.

• 出版日期2013-4
• 单位南京理工大学