Development of a model for strict handling of refraction in airborne lidar bathymetry

开发机载激光雷达测深中严格处理折射的模型

• 批准号: 259122201
• 负责人: Professor Dr. Hans-Gerd Maas
• 金额: --
• 依托单位: Institut für Photogrammetrie und Fernerkundung
• 依托单位国家: 德国
• 项目类别: Research Grants
• 财政年份: 2014
• 资助国家: 德国
• 起止时间: 2013-12-31 至 2018-12-31
• 项目状态: 已结题
• 来源: https://gepris.dfg.de/gepris/projekt/259122201?language=en
• 关键词: Development; model; strict; handling; refraction

Airborne lidar bathymetry is a technique for the determination of the underwater topography of shallow water areas in waterbodies with low turbidity. It is recently gaining much attention both due to new sensor developments allowing for a much higher spatial resolution in scanning riverbeds and due to new EU regulations requiring hydrographic measurements in waterbodies at regular time intervals.Geometric modeling in airborne lidar bathymetry is more complex than in conventional laser scanning due to the necessity of modeling refraction effects of the laser pulse passing the air-water interface and due to an increased dispersion of the pulse under water. Recent high resolution lidar bathymetry systems require new concepts of geometric modeling, as the effects of waves on the water surface cannot be neglected anymore when modeling refraction. The goal of the proposal is to develop a strict geometric-stochastic model for considering wave effects in lidar bathymetry data processing on the basis of spatio-temporal parameterized water surface models, which allow for a differential modeling of the refracted laser pulse path. As a result, the model will deliver an improved correction of refraction effects and thus a better accuracy in airborne lidar bathymetry.

空气传播的LIDAR测深量测定法是确定浊度低的水体浅水区的水下地形的技术。最近，由于新的传感器开发允许扫描河床的空间分辨率更高，并且由于需要在常规时间间隔中水的水文测量的新型欧盟法规，因此在扫描河床中获得更高的空间分辨率。机源性激光痛点的几何模型比在常规的激光扫描导致的脉冲效应中更为复杂，这是更为复杂的。脉搏在水下的分散。最近的高分辨率激光雷达测深系统需要新的几何建模概念，因为在建模折射时不再忽略了水面对水面的影响。该提案的目的是开发一个严格的几何模型模型，以根据时空参数化的水表面模型来考虑激光雷达测深的数据处理的波浪效应，从而可以对折射激光脉冲路径进行差异模型。结果，该模型将改善折射效应的校正，从而在机载激光雷达测深的测定法上具有更好的准确性。

项目成果

Analysis and correction of ocean wave pattern induced systematic coordinate errors in airborne LiDAR bathymetry

• DOI: 10.1016/j.isprsjprs.2017.04.008
• 发表时间: 2017-06
• 期刊: Isprs Journal of Photogrammetry and Remote Sensing
• 影响因子: 12.7
• 作者: P. Westfeld;H. Maas;Katja Richter;R. Weiß

IMPROVEMENTS IN LIDAR BATHYMETRY DATA ANALYSIS

激光雷达测深数据分析的改进

• DOI: 10.5194/isprs-archives-xlii-2-w10-113-2019
• 发表时间: 2019
• 期刊: The International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences
• 作者: Richter;Westfeld
• 通讯作者: Westfeld

NUMERICAL SIMULATION AND EXPERIMENTAL VALIDATION OF WAVE PATTERN INDUCED COORDINATE ERRORS IN AIRBORNE LIDAR BATHYMETRY

• DOI: 10.5194/isprs-archives-xlii-2-961-2018
• 发表时间: 2018-05
• 期刊: ISPRS - International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences
• 作者: K. Richter;D. Mader;P. Westfeld;H. Maas

An Approach to Determining Turbidity and Correcting for Signal Attenuation in Airborne Lidar Bathymetry

• DOI: 10.1007/s41064-016-0001-0
• 发表时间: 2017-02-01
• 期刊: PFG-JOURNAL OF PHOTOGRAMMETRY REMOTE SENSING AND GEOINFORMATION SCIENCE
• 影响因子: 4.1
• 作者: Richter, Katja;Maas, Hans-Gerd;Weiss, Robert
• 通讯作者: Weiss, Robert

Analysis of the Effect Ofwave Patterns on Refraction in Airborne LIDAR Bathymetry

机载激光雷达测深波型对折射的影响分析

• DOI: 10.5194/isprs-archives-xli-b1-133-2016
• 发表时间: 2016
• 期刊: ISPRS - International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences
• 作者: Westfeld;Richter
• 通讯作者: Richter