Tree and Canopy Height Estimation with Scanning Lidar
Tree and Canopy Height Estimation with Scanning Lidar
复制标题
使用扫描激光雷达估算树木和树冠高度
DOI：
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发表时间：
2003
期刊：
影响因子：
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通讯作者：
M. Wulder
中科院分区：
文献类型：
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作者：
B. St;P. Treitz;M. Wulder
有关森林遥感的很大一部分研究工作致力于开发可重复使用的方法，从单目、二维图像中提取信息。重点放在光谱模式识别上。尽管这种方法适用于物种或健康特征，但在寻求关于森林结构的详细信息时，例如森林树冠的三维方面，这种方法有几个局限性(Wulder 1998)。在地方尺度上精确测量高度、密度、体积、层积等是森林工作者和森林生态学家最感兴趣的，而且具有几何性质而不是辐射性质，仍然超出了二维遥感和图像处理的能力。
A large part of the research efforts concerning the remote sensing of forests has been devoted to the development of repeatable methods for the extraction of information from monoscopic, two-dimensional images. Emphasis has been on spectral pattern recognition. Although appropriate for species or health characterisation, this approach comes with several limitations when detailed information on forest structure, e.g. three-dimensional aspects of forest canopies, is sought (Wulder 1998). Accurate measurements of height, density, volume, stratification, etc. at local scales, which are of prime interest for foresters and forest ecologists, and which have a geometric rather than radiometric nature, are still beyond the capabilities of two-dimensional remote sensing and image processing.