| 利用三角网遮蔽检测进行真正射影像制作 |
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| 引用本文： | 张剑清,许彪,孙明伟,张勇.利用三角网遮蔽检测进行真正射影像制作[J].武汉大学学报(信息科学版),2012,37(3):326-329. |
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| 作者姓名： | 张剑清 许彪 孙明伟 张勇 |
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| 作者单位： | 1. 武汉大学遥感信息工程学院,武汉市珞喻路129号430079／武汉大学测绘遥感信息工程国家重点实验室,武汉市珞喻路129号430079
2. 武汉大学遥感信息工程学院,武汉市珞喻路129号,430079 |
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| 基金项目： | 国家自然科学基金资助项目，国家863计划资助项目 |
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| 摘 要： | 针对传统正射影像建筑物倾斜、重影等问题,提出了一种基于三角网遮蔽检测的真正射影像制作方法。该方法以三角形为检测单元,通过对三角形进行视觉排序来进行遮蔽区域的检测;采用权值影像的方式,利用相邻影像的可见部分对遮蔽区域进行纹理修补,生成真正射影像。实验结果表明,所提出的方法能够准确地检测出影像遮蔽区域,生成的真正射影像完整、无遮蔽。
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| 关 键 词： | 真正射影像 遮蔽检测 Delaunay三角网 视觉排序 纹理修补 |
True Orthoimage Generation Based on Occlusion Detection with TIN |
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| ZHANG Jianqing,XU Biao,SUN Mingwei,ZHANG Yong.True Orthoimage Generation Based on Occlusion Detection with TIN[J].Geomatics and Information Science of Wuhan University,2012,37(3):326-329. |
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| Authors: | ZHANG Jianqing XU Biao SUN Mingwei ZHANG Yong |
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| Institution: | 1(1 School of Remote Sensing and Information Engineering,Wuhan University,129 Luoyu Road,Wuhan 430079,China)(2 State Key Laboratory of Information Engineering in Surveying,Mapping and Remote Sensing, Wuhan University,129 Luoyu Road,Wuhan 430079,China) |
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| Abstract: | To the problems about building tilt and ghost image on traditional orthoimage,a novel method for true orthoimage generation based on occlusion detection with TIN(TOGODT) is proposed.The triangle is the dectection unit in this method.Occlusions are dectected by visual sorting of triangles,and occlusion areas are repaired by visible parts of the neighbor images which are treated as weighted image.The experimental results show that this method can accurately detect image occlusion areas,and the generated true orthoimage is complete and has no occlusion. |
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| Keywords: | true orthoimage occlusion detection Delaunay triangulation vision sort texture repair |
| 本文献已被 CNKI 万方数据 等数据库收录！ |
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