联合全局优化和光照补偿的航空影像色彩一致性处理算法  

Color consistency processing algorithm for aerial images based on joint global optimization and illumination compensation

作　　者：高翔森 崔浩 李雪 王文宝 张骏 徐如志 张国涛 GAO Xiangsen;CUI Hao;LI Xue;WANG Wenbao;ZHANG Jun;XU Ruzhi;ZHANG Guotao(Beijing Institute of Surveying and Mapping,Beijing 100038,China;Wuhan University,Wuhan,Hubei 430072,China;Beijing Totop Technology Company Limited,Beijing 100043,China;Beijing Dadi Wanchuan Surveying and Mapping Company Limited,Beijing 100020,China;Wuhan Smart Vision Space Technology Company Limited,Wuhan,Hubei 430223,China)

机构地区：[1]北京市测绘设计研究院,北京100038 [2]武汉大学,湖北武汉430072 [3]北京图拓扑科技有限公司,北京100043 [4]北京大地万川测绘有限公司,北京100020 [5]武汉智觉空间信息技术有限公司,湖北武汉430223

出　　处：《北京测绘》2024年第10期1387-1393,共7页Beijing Surveying and Mapping

基　　金：城市空间信息工程北京市重点实验室开放基金(20220102)。

摘　　要：本文针对航空影像在采集过程中常遇到的光照不均和色调差异等问题,提出一种联合全局优化和光照补偿的大范围航空遥感影像设计的色彩一致性处理算法。算法充分考虑航空摄影的独特拍摄特性与影像成像规律,在全局优化方面,精确估算出测区影像的色彩校正系数,对整个测区的影像色彩进行统一调整,确保校正系数能够真实反映影像的实际状况。同时,为解决遥感影像拍摄中局部光照不均问题,对影像局部光照特征进行分析,并进行实时调整补偿,进一步提升了影像的视觉质量与可读性。实验结果表明,本文方法处理的航空影像在色彩一致性和光照均匀性方面均有显著优势。相较于传统方法,本文方法不仅在处理速度上更胜一筹,而且更为稳定与可靠。In this paper,a color consistency processing algorithm for large-scale aerial remote sensing image design based on joint global optimization and illumination compensation was proposed to solve the problems of uneven illumination and tone difference in aerial image acquisition.The algorithm fully considered the unique shooting characteristics and imaging laws of aerial photography.In terms of global optimization,it accurately estimated the color correction coefficient of the image in the measuring area and uniformly adjusted the color of the image in the whole measuring area to ensure that the correction coefficient could truly reflect the actual condition of the image.At the same time,in order to solve the problem of uneven local illumination in remote sensing image shooting,the local illumination characteristics of the image were analyzed,and real-time adjustment compensation was carried out to further improve the visual quality and readability of the image.The experimental results show that the aerial images processed by this method have significant advantages in color consistency and illumination uniformity.Compared with the traditional method,the proposed method has better processing speed and is more stable and reliable.

关 键 词：航空正射影像 色彩校正 影像光照补偿 局部特征 Wallis滤波器 

分 类 号：P258[天文地球—测绘科学与技术]