High dynamic range image reconstruction for multi-bit quanta image sensor

作     者：GAO Jing SHANG Zongyao NIE Kaiming LUO Tao 

作者机构：Tianjin Key Laboratory of Imaging and Sensing Microelectronic TechnologySchool of MicroelectronicsTianjinUniversityTianjin 300072China College of Intelligence and ComputingTianjin UniversityTianjin 300072China 

出 版 物：《Optoelectronics Letters》 (光电子快报（英文版）)

年 卷 期：2022年第18卷第9期

页      面：553-558页

核心收录：

学科分类：08[工学] 080203[工学-机械设计及理论] 0802[工学-机械工程] 0714[理学-统计学（可授理学、经济学学位）] 

基　　金：the National Key R&D Program of China(No.2019YFB2204300). 

主　　题：image HDR dynamic 

摘      要：An adaptive thresholds algorithm is proposed in this letter, which is used to determine the global optimal thresholds for multi-bit quanta image sensor(MB-QIS). Firstly, the senor model of MB-QIS is set up. Then global optimal thresholds theory is analyzed and a thresholds optimization algorithm based on the binary search is designed to determine the optimal global thresholds. Finally, the high dynamic range(HDR) images are reconstructed by the noniterative maximum likelihood estimation(MLE) image reconstruction method. The results of simulation prove that HDR imaging of MB-QIS is realized by the proposed method effectively.