For extracting ground points from LIDAR points clouds quickly and generating high accurate DTMs effectively, a filtering method based on multi-resolution directional prediction is proposed.

为了快速提取LIDAR点云中的地面点，生成高精度的DTM，提出了一种基于多分辨率方向预测的LIDAR点云滤波方法。

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In order to measure the organic aerosol in the atmosphere, based on laser induced fluorescence, a fluorescence lidar model system was put forward for detecting organic aerosol in the atmosphere.

为了能够实现对大气中有机气溶胶颗粒的探测，采用激光诱导荧光技术，提出了适用于探测大气有机气溶胶颗粒的荧光激光雷达系统模型。

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In a word, this paper based on the airborne LIDAR points cloud data achieves the extraction of urban building by using digital image processing technique without any assistance data.

总之，本文以航空LIDAR点云数据为基础，在无其他辅助数据的情况下，采用数字图像处理技术，实现了基于航空LIDAR点云数据提取城市地区建筑物的目标。

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The approach du jour for most researchers is something known as Light Detection and Ranging ( LIDAR) -- a laser-based technology capable of creating precise maps over relatively large areas.

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