基于图像质量评价的航测影像成图质量的研究  

Research on reducing redundancy of aerial film based on image quality evaluation

作　　者：刘望明 胡荣明[2] 史小亮 Liu Wangming;Hu Rongming;Shi Xiaoliang(Department of Surveying and Mapping, Shanxi Railway Institute, Weinan 714099, China;College of Geomatics, Xi' an University of Science and Technology,Xi' an 710054, China)

机构地区：[1]陕西铁路工程职业技术学院测绘工程系,渭南714099 [2]西安科技大学测绘科学与技术学院,西安710054

出　　处：《电子测量技术》2019年第11期122-127,共6页Electronic Measurement Technology

基　　金：国家自然科学基金(51409204);陕西铁路工程职业技术学院2018年第二批科研基金(KY2018-79)项目资助.

摘　　要：为了解决航测影像因航拍过程中图像模糊、重影或曝光不正常以及重叠度过高等严重影响图像的拼接效率和拼接质量的问题。首先统计出原始航拍影像的重叠度,确定影像的冗余量。其次采用BRISQUE无参考图像质量评价算法对航拍影像在固定冗余间隔内进行降冗处理,剔除质量较差的影像,保留质量较好的影像采用PIX4D软件进行拼接实验。通过对原始影像和质量评价降冗后的影像进行实验分析,实验得出基于BRISQUE质量评价降冗后较原始影像拼接生成的正射影像质量好,而且拼接效率提高37.63%。In order to solve the problems of image blur, abnormal double image or exposure and high overlap in aerial photography, the efficiency and quality of image stitching are seriously affected. Firstly, the overlap degree of the original aerial image is calculated and the redundancy of the image is determined. Secondly, the BRISQUE no-reference image quality evaluation algorithm is used to reduce the redundancy of aerial images within the fixed redundancy interval, and the images with poor quality are eliminated, and the images with good quality are spliced by PIX4D software. Through the experimental analysis of the original image and the image with reduced redundancy in quality evaluation, the quality of the original image is obtained based on BRISQUE. The quality of orthophoto image after reducing redundancy is better than that of original image stitching, and the efficiency of stitching is improved 37. 63 %.

关 键 词：BRISQUE 拼接质量 质量评价 重叠度 

分 类 号：TN307[电子电信—物理电子学]