International Symposium on Lidar and Radar Mapping Technologies最新文献_第4页

MATLAB tools for lidar data conversion, visualization, and processing MATLAB工具用于激光雷达数据的转换、可视化和处理

International Symposium on Lidar and Radar Mapping Technologies Pub Date : 2011-06-12 DOI: 10.1117/12.912529

Xiao Wang, Kai Zhou, Jie Yang, Yilong Lu

引用次数: 4

Fast processing of discrete data based on dynamical regular grid nets 基于动态规则网格的离散数据快速处理

International Symposium on Lidar and Radar Mapping Technologies Pub Date : 2011-06-12 DOI: 10.1117/12.912833

Lichun Sui, Jianfeng Zhu, Shuo Zhang, Jonathan Li

{"title":"Fast processing of discrete data based on dynamical regular grid nets","authors":"Lichun Sui, Jianfeng Zhu, Shuo Zhang, Jonathan Li","doi":"10.1117/12.912833","DOIUrl":"https://doi.org/10.1117/12.912833","url":null,"abstract":"With the development of LIDAR, InSAR and other new technologies used in the data acquisition, the three dimensional point cloud data has become a very important data source in the Geomatics applications. LIDAR provide a convenient way to acquire a massive three dimensional point data. A high efficiency algorithm for the management and searching of LIDAR data is an important foundation of the procedure of LIDAR processing such as filtering, display and threedimensional reconstruction. How to deal with a large amount of discrete data is not only one of the focuses and challenges in the area of LIDAR point cloud data processing, but also an important content in some other areas such as the DEM generation. While in some ways the storage, organization and management solutions of these massive points will affect the efficiency and accuracy in the following processing. In this paper a dynamical regular grid nets method will be introduced. This method will then be used in some airborne LIDAR filtering experiments of different areas. We will see the procedure and result of the point cloud data processing using this dynamic regular grid nets method. Accordingly, the effectiveness of this method will be proved.","PeriodicalId":194292,"journal":{"name":"International Symposium on Lidar and Radar Mapping Technologies","volume":"150 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-06-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123219455","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

An unorganized point cloud simplification based on boundary point extraction 基于边界点提取的无组织点云简化方法

International Symposium on Lidar and Radar Mapping Technologies Pub Date : 2011-06-12 DOI: 10.1117/12.912977

Xiao-qi Lan, Hong Zhang, B. Duan

引用次数: 0

A novel segmentation method of high resolution remote sensing image based on object-oriented Markov random fields model 一种基于面向对象马尔可夫随机场模型的高分辨率遥感图像分割方法

International Symposium on Lidar and Radar Mapping Technologies Pub Date : 2011-06-12 DOI: 10.1117/12.912791

L. Hong, Xianchun Pan, Zhaozhong Gao, Kun Yang

{"title":"A novel segmentation method of high resolution remote sensing image based on object-oriented Markov random fields model","authors":"L. Hong, Xianchun Pan, Zhaozhong Gao, Kun Yang","doi":"10.1117/12.912791","DOIUrl":"https://doi.org/10.1117/12.912791","url":null,"abstract":"A novel methodology base on object-oriented MRF is proposed in order to obtain precise segmentation of high resolution satellite image. Conventional pixel-by-pixel MRF model methods only consider spatial correlation and texture of each pixel fixed square neighborhood. The segmentation method based on pixel-by-pixel MRF model usually suffers from salt and pepper noise. Based on the analysis of problems existing in pixel-by pixel MRF model methods of highresolution remote sensed images, an object-oriented MRF-based segmentation algorithm is proposed. The proposed method is made up of two blocks: (1) Mean-Shift algorithm is employed to obtain the over-segmentation results and the primary processing units are generated based on which the object adjacent graph (OAG) can be constructed. (2) MRF model is easily defined on the OAG, in which special features of pixels are modeled in the feature field model and the neighbor system, potential cliques and energy functions of OAG are exploited in the labeling model. The proposed segmentation method is evaluated on high resolution remote sensed image data-IKONOS. The experimental results show the proposed method can improve the segmentation accuracy while simultaneously obviating \"salt and pepper noise\" phenomenon and reducing the computational complexity greatly.","PeriodicalId":194292,"journal":{"name":"International Symposium on Lidar and Radar Mapping Technologies","volume":"86 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-06-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122729718","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Power transmission tower monitoring technology based on TerraSAR-X products 基于TerraSAR-X产品的输电铁塔监控技术

International Symposium on Lidar and Radar Mapping Technologies Pub Date : 2011-06-12 DOI: 10.1117/12.912336

Liu Yan, Wenhao Wu, Tao Li

引用次数: 20

Monitoring ground subsidence in Jiaxing region using Envisat data 利用Envisat数据监测嘉兴地区地面沉降

International Symposium on Lidar and Radar Mapping Technologies Pub Date : 2011-06-12 DOI: 10.1117/12.912722

Tao Li, Jicang Wu, Lina Zhang

引用次数: 0

Power supply topology for lidar system onboard UAV platform 无人机平台上激光雷达系统的电源拓扑

International Symposium on Lidar and Radar Mapping Technologies Pub Date : 2011-06-12 DOI: 10.1117/12.912607

Guoqing Zhou, Jiazhi Yang, Xincheng Yu, Wei Zhu

引用次数: 8

Performance analysis of weak target detection via ground-based synthetic aperture radar 陆基合成孔径雷达微弱目标探测性能分析

International Symposium on Lidar and Radar Mapping Technologies Pub Date : 2011-06-12 DOI: 10.1117/12.912596

Yongsheng Zhou, Mei Zhou, L. Tang, Chuanrong Li

{"title":"Performance analysis of weak target detection via ground-based synthetic aperture radar","authors":"Yongsheng Zhou, Mei Zhou, L. Tang, Chuanrong Li","doi":"10.1117/12.912596","DOIUrl":"https://doi.org/10.1117/12.912596","url":null,"abstract":"Polarimetric Interferometric Synthetic Aperture Radar (Pol-InSAR) is an emerging technique that combines interferometric SAR and polarimetric SAR techniques and has shown its effectiveness in the detection of buried weak targets. The detection performance is affected by the SAR parameters as well as the covering characteristics. In this paper, the effects of covering characteristics on the detection performance were emphasized and experimentally investigated by a ground-based Pol-InSAR system. Firstly, the detection principle for buried weak target by Pol-InSAR technique was presented, which is based on the use of interferometric coherence variation with polarization. Then the ground-based two dimensional rail (TDR) SAR used for investigation was introduced. Furthermore, the experiment target scene was designed and the effects of different covering type, different covering moisture, and different covering depth on the detection performance of weak targets were shown and analyzed. Preliminary results confirmed the effectiveness of Pol-InSAR technique used for weak target detection and it would be helpful for the further investigation of this technique.","PeriodicalId":194292,"journal":{"name":"International Symposium on Lidar and Radar Mapping Technologies","volume":"21 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-06-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121396739","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Deformation monitoring in Hanyuan reservoir resettlement of Pubugou Hydropower Station using PS-InSAR 基于PS-InSAR的普步沟水电站汉源水库移民变形监测

International Symposium on Lidar and Radar Mapping Technologies Pub Date : 2011-06-12 DOI: 10.1117/12.912510

M. He, Xiufeng He

引用次数: 0

Assessing low-relief coastal estuaries watershed boundary and its surface water flow based-on lidar-derived digital elevation models: a case study of Jiangsu 基于激光雷达数字高程模型的低起伏沿海河口流域边界及其地表水流量评估——以江苏省为例

International Symposium on Lidar and Radar Mapping Technologies Pub Date : 2011-06-12 DOI: 10.1117/12.913040

Siqi Liu, Xiaoxiang Zhang, Mengpiao Xu, Yan Xie, Xianrong Ding, Changkuan Zhang

{"title":"Assessing low-relief coastal estuaries watershed boundary and its surface water flow based-on lidar-derived digital elevation models: a case study of Jiangsu","authors":"Siqi Liu, Xiaoxiang Zhang, Mengpiao Xu, Yan Xie, Xianrong Ding, Changkuan Zhang","doi":"10.1117/12.913040","DOIUrl":"https://doi.org/10.1117/12.913040","url":null,"abstract":"Conventional hydrologic analyses of digital elevation models (DEMs) perform well in areas of high topographic relief, where surface water flow is typically unidirectional, convergent, spatially static, and directed toward a single discharge point at the edge of a catchment. Such analyses do not perform well on landscapes with low topographic relief such as estuaries areas. where surface water flow is influenced by subtle topographic depressions and sea-land interaction, which may be bidirectional, divergent, and spatially dynamic in response to hydrologic forcing such as tides or variation in river discharge. We developed a framework for hydrologic analysis of low-relief landscapes using a high-resolution (0.2m) DEM derived from light detection and ranging (LIDAR) data collected over a Jiangsu Radiate Sand Ridges, China. Our approach assessed the pattern and characteristics of estuaries watershed and its hydrologic response drainage, where drainage boundaries were defined by subtle topographic divides across the Salt-marsh.","PeriodicalId":194292,"journal":{"name":"International Symposium on Lidar and Radar Mapping Technologies","volume":"37 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-06-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134542739","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0