液晶与显示2025，Vol.40Issue(4)：577-587,11.DOI:10.37188/CJLCD.2024-0317
低对比度条件的双目立体视觉测距
Distance measurement with binocular stereo vision under low contrast conditions
摘要
Abstract
To address the decline in binocular ranging accuracy under low-contrast conditions,such as haze and strong background interference,this study integrates computer-based image enhancement techniques and optimizes depth information calculation and image processing methods to achieve high-precision passive binocular ranging in low-contrast environments.First,image enhancement techniques are applied to improve the accuracy of feature point recognition and matching in binocular images,thereby enhancing image quality in low-contrast settings.Next,a 3D display device is introduced in the image reconstruction terminal to optimize depth information calculations,ensuring accurate distance measurement even when image features are severely degraded.Through binocular stereoscopic vision,the automatic fusion and registration of target images are achieved,extending the ranging distance and improving accuracy.Experimental results show that,compared to the 10%ranging error of the traditional Type 58 rangefinder,the binocular stereo vision ranging method proposed in this paper achieves an average relative error(MRE)of less than 2.3%within a range of 500 m to 1 300 m.Additionally,this method demonstrates excellent stability,reliability,and real-time performance in low-contrast environments.The proposed method enables real-time,rapid,passive binocular ranging of moving targets in low-contrast conditions,offering high accuracy and strong anti-interference capabilities,making it suitable for industrial control,driver assistance,and target indication applications.关键词
双目测距/立体视觉/低对比度/3D显示Key words
binocular ranging/stereo vision/low contrast/3D display分类
计算机与自动化引用本文复制引用
杨军,陈令烨,陈立邦,卞启航,刘忆琨,周建英..低对比度条件的双目立体视觉测距[J].液晶与显示,2025,40(4):577-587,11.基金项目
国家重点研发项目(No.2021YFB2802200) （No.2021YFB2802200）
广东省基础与应用基础研究重大项目(No.2020B0301030009) （No.2020B0301030009）
国家自然科学基金(No.61991452) （No.61991452）
国家重点研发计划(No.2022YFA140430402)Supported by National Key R&D Program of China(No.2021YFB2802200) （No.2022YFA140430402）
Major Program of Basic and Applied Basic Research of Guangdong Province(No.2020B0301030009) （No.2020B0301030009）
National Natural Science Foundation of China(No.61991452) （No.61991452）
National Key R&D Program of China(No.2022YFA140430402) （No.2022YFA140430402）
