测试技术学报2025，Vol.39Issue(4)：397-405,9.DOI:10.62756/csjs.1671-7449.2025053
TDI-CCD的曝光时长优化方法研究
Research on Optimization Method of Exposure Time for TDI-CCD
摘要
Abstract
The exposure duration is one of the important parameters in the time delay integrated charge coupled device(TDI-CCD)imaging system,which has a significant impact on the quality of imaging results.To improve the image quality of TDI-CCD imaging systems,a gradient-based algorithm is pro-posed for optimizing the exposure duration parameters of TDI-CCD cameras under velocity mismatch con-ditions.An imaging mathematical model is constructed for TDI-CCD based on the imaging principle of photoelectric imaging sensors,and the image grayscale is mathematically associated with exposure dura-tion.On this basis,a cost function for exposure duration is constructed and a gradient-based algorithm is used to optimize the exposure duration parameters.Simulation and experimental results show that the pro-posed method can increase the peak signal-to-noise ratio of two scenarios by about 50%and 20%respec-tively,effectively improving effectively the imaging quality of TDI-CCD under velocity mismatch condi-tions,which is of great significance for improving the accuracy of target detection.关键词
计算成像/数值优化/时间延迟积分/曝光时长/梯度算法Key words
computational imaging/numerical optimization/time delay integration/exposure duration/gradient algorithm分类
计算机与自动化引用本文复制引用
潘毅华,张相祎,刘伟艇,李宇阳,刘宾,韩焱..TDI-CCD的曝光时长优化方法研究[J].测试技术学报,2025,39(4):397-405,9.基金项目
中国博士后科学基金资助项目(2024M752994) （2024M752994）
山西省基础研究计划资助项目(202403021212340) （202403021212340）
