传感技术学报2023，Vol.36Issue(6)：881-892,12.DOI:10.3969/j.issn.1004-1699.2023.06.006
基于脉冲序列光场相机的脉冲间隔时间误差校正方法
Calibration Method for Time Error of Pulse Interval Based on Pulse-Sequence-Based Plenoptic Camera
摘要
Abstract
A calibration method is proposed for the time error of pulse interval(TEPI)in the pulse-sequence-based plenoptic camera.The causes of pulse interval fluctuations include time errors and scene changes,based on which the pulse interval sequence is divided into sub-sequences,and only fluctuations caused by time errors exist in sub-sequences.The TEPI in each sub-sequence is calibrated with the fluc-tuating proportion.In static scene,the signal-to-noise ratio of uniform light images with light intensities of 400 lux,1 700 lux,and 3 500 lux increases from 14.622 5,12.298 6,and 10.585 4 to 14.688 1,15.792 5,and 15.941 6 respectively.In dynamic scene,the standard deviation of turntable images with rotational speeds of 10 r/min,100 r/min,and 1 000 r/min decreases from 36.075 9,35.109 4,and 34.835 3 to 33.883 8,32.975 0,and 32.845 8 respectively.Missing gray values are complemented in both static and dynamic scenes.Experimental re-sults show that the proposed method can effectively calibrate the TEPI and improve the image quality.关键词
脉冲序列光场相机/图像去噪/时间误差校正/脉冲间隔/图像重构Key words
pulse-sequence-based plenoptic camera/image denoising/time error calibration/pulse interval/image reconstruction分类
信息技术与安全科学引用本文复制引用
马驯川,高志远,徐江涛..基于脉冲序列光场相机的脉冲间隔时间误差校正方法[J].传感技术学报,2023,36(6):881-892,12.基金项目
国家自然科学基金项目(62134004)This work was supported by the National Natural Science Foundation of China under Grant 62134004. （62134004）
