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首页> 外文期刊>IEEE Geoscience and Remote Sensing Letters >Distance Effect Correction on TLS Intensity Data Using Naturally Homogeneous Targets
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Distance Effect Correction on TLS Intensity Data Using Naturally Homogeneous Targets

机译：使用自然均质目标对TLS强度数据的距离效应校正

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摘要

The intensity data recorded by a terrestrial laser scanner (TLS) are significantly influenced by the distance between the scanned point and the scanner center. In this letter, we propose a new method to estimate the TLS distance-intensity relationship by using naturally homogeneous targets (NHT). Since the original intensity data of the NHT are simultaneously influenced by the incidence angle and distance, the incidence angle effect is first eliminated to obtain a corrected intensity that merely depends on distance. Then, the distance-intensity relationship is derived by analyzing the incidence angle corrected intensity data of the NHT. Results indicate that compared with existing methods the proposed method is accurate and easily implementable. The coefficient of variation for the intensity data can be reduced by 52% after correction by the proposed method.
机译：由地面激光扫描仪（TLS）记录的强度数据受扫描点和扫描仪中心之间的距离的显着影响。在这封信中，我们提出了一种通过使用自然均质目标（NHT）来估计TLS距离强度关系的新方法。由于NHT的原始强度数据同时受到入射角和距离的影响，因此首先消除入射角效果以获得仅取决于距离的校正强度。然后，通过分析NHT的入射角校正强度数据来导出距离 - 强度关系。结果表明，与现有方法相比，所提出的方法准确且易于实现。通过所提出的方法校正后，强度数据的变化系数可以减少52％。

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