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| 基于图像分层搜索的地形轮廓匹配算法设计 | |
| 引用本文： | 于家城,晏磊,贺翔.基于图像分层搜索的地形轮廓匹配算法设计[J].海洋测绘,2008,28(6):33-35. |
| 作者姓名： | 于家城 晏磊 贺翔 |
| 作者单位： | 1. 华北科技学院,电子信息工程系,河北,三河,065201 2. 北京大学,空间信息集成与 3. 河南电力试验研究院,河南,郑州,450052 |
| 摘 要： | 应用图像分层搜索序贯判决算法，进行海底地形轮廓匹配（TERCOM）算法设计。建立了上下两层同时匹配的比较控制逻辑，既提高了匹配速度，又减少了误匹配，增强了地形二维匹配的健壮性。应用实际海图原始数据进行仿真。结果表明，该算法在保持匹配速度的同时具有较高的匹配精度和抗差特性。 |
| 关 键 词： | 地形轮廓匹配 分层搜索序贯判决算法 粗匹配 精匹配 |
Design of TERCOM Algorithm Based on Image Layered-Searching |
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| YU Jia-cheng,YAN Lei,HE Xiang.Design of TERCOM Algorithm Based on Image Layered-Searching[J].Hydrographic Surveying and Charting,2008,28(6):33-35. | |
| Authors: | YU Jia-cheng YAN Lei HE Xiang |
| Institution: | Department of Electronics and Information Engineering,North China Institute of Science and Technology,Sanhe,Hebei 065201;Beijing Key Laboratory of Spatial Information Integration and Its Applications,Peking University,Beijing 100871; Henan Academy of Electric Power Test,Zhengzhou,Henan 450052 |
| Abstract: | A seafloor terrain contour matching(TERCOM) algorithm based on image layered-searching is designed.The distinguishing sequence algorithm in image layered-searching is applied to accelerate TERCOM by dividing the terrain map to three layers.Furthermore,a comparing logic is construced between the second and third layer.By this means,matching rate is increased and false matching is decresed.The algorithm is verified by using practical water depth data of certain seafloor.Simulation results show that it can obtain higher precision with somewhat robusticity. |
| Keywords: | terrain contour matching distinguishing sequence algorithm rough matching precise matching |
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