测绘学报 ›› 2019, Vol. 48 ›› Issue (5): 563-571.doi: 10.11947/j.AGCS.2019.20180136

• 摄影测量学与遥感 • 上一篇    下一篇

高分辨率光学遥感几何与纹理约束的线段优化算法

戴激光1,2,3,4, 谢诗哲1, 苗志鹏1, 宋伟东1, 王杨1, 朱婷婷1   

  1. 1. 辽宁工程技术大学测绘与地理科学学院, 辽宁 阜新 123000;
    2. 资源与环境信息系统国家重点实验室, 北京 100101;
    3. 城市空间信息工程北京市重点实验室, 北京 100038;
    4. 东华理工大学江西省数字国土重点实验室, 江西 南昌 330013
  • 收稿日期:2018-03-26 修回日期:2018-07-23 出版日期:2019-05-20 发布日期:2019-06-05
  • 通讯作者: 宋伟东 E-mail:lntu_swd@163.com
  • 作者简介:戴激光(1978-),男,博士,副教授,研究方向为高分辨率影像特征提取。E-mail:daijg03@163.com
  • 基金资助:
    国家自然科学基金(41271374);辽宁省自然科学基金计划重点项目(20170520141);辽宁省公益研究基金计划(20170003);城市空间信息工程北京市重点实验室经费(2017206);东华理工大学江西省数字国土重点实验室开放研究基金(DLLJ201703);资源与环境信息系统国家重点实验室开放基金

Line segment optimization with geometric and texture constraints for high resolution optical remote sensing

DAI Jiguang1,2,3,4, XIE Shizhe1, MIAO Zhipeng1, SONG Weidong1, WANG Yang1, ZHU Tingting1   

  1. 1. School of Mapping and Geographical Science, Liaoning Technical University, Fuxin 123000, China;
    2. State Key Laboratory of Resources and Environmental Information System, Beijing 100101, China;
    3. Beijing Key Laboratory of Urban Spatial Information Engineering, Beijing 100038, China;
    4. Key Laboratory for Digital Land and Resource of Jiangxi Province, East China University of Technology, Nanchang 330013, China
  • Received:2018-03-26 Revised:2018-07-23 Online:2019-05-20 Published:2019-06-05
  • Supported by:
    The National Natural Science Foundation of China (No. 41271374);The Key Natural Science Plan Fund of Liaoning Province (No. 20170520141);The Public Welfare Research Fund of Liaoning Province (No. 20170003);The Fund of Beijing Key Laboratory of Urban Spatial Information Engineering (No. 2017206);The Research Fund of Jiangxi Province Key Laboratory for Digital Land and Resources of East China University of Technology (No. DLLJ201703);The Open Fund of the State Key Laboratory of Resources and Environmental Information System

摘要: 针对高分辨率光学遥感影像线段断裂问题,提出一种基于几何与纹理约束的线段优化算法。首先,将线段视为地物轮廓表达的一种方式,由此从同一地物边缘角度出发,提出线段断裂的几何与纹理规律;其次,提出线段优化算法,以提取线段结果为处理基元,依据线段长度确定初始优化线段,设定跟踪矩形,建立针对断裂线段的几何纹理约束模型,构建动态优化模型,并给出完整的线段优化流程。最后,通过多幅不同实际场景、不同类型高分辨率遥感影像的试验结果分析,表明本文算法不仅能够解决由地物遮挡、边缘模糊及边缘锯齿化造成的线段断裂问题,并且在优化线段长度以及抑制线段过提取问题方面,均表现出较大的优势。

关键词: 优化, 线段, 约束

Abstract: Aiming at the problem that high-resolution optical remote sensing image lines are prone to fracture, a line segment optimization algorithm is proposed. Firstly, the line segment is regarded as a way to express the contour of the ground object, and the laws of line segment fracture from two aspects of geometric features and texture features are analyzed. Secondly, the line segment optimization algorithm is proposed. It takes the results of detecting line segments as the processing primitives, determines the initial optimized line segment according to the length of the line segment, establishes the tracking rectangular region and geometric constraint model for the broken line segments,build a dynamic optimization model, and give a complete line optimization process. Through the analysis of experimental results of some actual scenes and different types of remote sensing images, it is shown that the proposed algorithm can not only solve the problem of line segment fracture caused by terrain occlusion, edge blurring and edge serration, but also comparing with other methods, the proposed algorithm has great advantages in optimizing line length and restraining over extraction problem.

Key words: optimization, line segment, constraint

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