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| 真正射纠正中地物遮挡区域自动检测与标识方法研究 | |
| 引用本文： | 张克,杜培军,刘军,郑辉,杨彦通,孙久运.真正射纠正中地物遮挡区域自动检测与标识方法研究[J].测绘科学,2012,37(3):144-146. |
| 作者姓名： | 张克 杜培军 刘军 郑辉 杨彦通 孙久运 |
| 作者单位： | 1. 中国矿业大学国土环境与灾害监测国家测绘局重点实验室,江苏徐州,221116 2. 中国矿业大学国土环境与灾害监测国家测绘局重点实验室,江苏徐州221116;南京大学地理信息科学系,南京210093 3. 信息工程大学测绘学院,郑州,450052 4. 充州矿业集团地测部,山东济宁,273500 |
| 基金项目： | 数字摄影测量影像目标精密定位与精度估计研究(41171343) |
| 摘 要： | 本文基于真正射纠正的原理,探讨了图像遮挡区域处理的方法。针对真正射纠正中重叠区域和建筑物遮挡区域等影像的检测与标识问题,基于Z-Buffer算法和阈值选择法,通过将图像一分为四进行真正射纠正对Z-Buffer算法进行改进。试验表明,所提出的改进算法能够实现快速真正射纠正,具有良好的应用效果。 |
| 关 键 词： | 真正射纠正 数字表面模型 数字正射影像图 遮挡区域 Z-Buffer算法 |
Automatic detection and identification of occlusion areas in true ortho rectification |
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| ZHANG Ke , DU Pei-jun , LIU Jun , ZHENG Hui , YANG Yan tong , SUN Jiu-yun.Automatic detection and identification of occlusion areas in true ortho rectification[J].Science of Surveying and Mapping,2012,37(3):144-146. | |
| Authors: | ZHANG Ke DU Pei-jun LIU Jun ZHENG Hui YANG Yan tong SUN Jiu-yun |
| Institution: | ①(①Key Laboratory for Land Environment and Disaster Monitoring of SBSM,China University of Mining and Technology,Jiangsu Xuzhou,221116,China;②Department of Geoinformatics,Nanjing University,Nanjing 210093,China;③Institute of Surveying and Mapping,Information Engineering University,Zhengzhou,450052,China;④Yanzhou Mining Industrial Group,Shandong Jining 273500,China) |
| Abstract: | Based on the theory of true ortho rectification,this paper discussed the method in dealing with the occlusion areas of the image.Aiming at detecting and identifying the occlusion areas in true ortho rectification,a modified method based on Z-Buffer algorithm and threshold selection was proposed.The Z-Buffer algorithm was modified by dividing one image into four to do the rectification.Experiments showed that the modified method could realize true ortho rectification quickly and the result was with good effect. |
| Keywords: | true ortho rectification Digital Surface Model Digital Orthophoto Map occlusion areas Z-Buffer algorithm |
| 本文献已被 CNKI 万方数据 等数据库收录！ | |