کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
5754984 1621206 2017 13 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Quantification of hidden canopy volume of airborne laser scanning data using a voxel traversal algorithm
ترجمه فارسی عنوان
کوانتومی حجم سایبان پنهان داده اسکن لیزر هوایی با استفاده از الگوریتم تراکم وکسل
موضوعات مرتبط
مهندسی و علوم پایه علوم زمین و سیارات کامپیوتر در علوم زمین
چکیده انگلیسی
Our results at 1 m voxel size show that even with the highest average pulse density of 11 pulses/m2, at least 25% of the forest canopy volume remains occluded in the ALS acquisition under leaf-on conditions. Comparison with TLS acquisitions further showed that roughly 28% of the vegetation elements detected by the TLS acquisitions were not detected by the ALS system due to occlusion effects. By combining leaf-on and leaf-off acquisitions, we were able to recover roughly 7% of the occluded vegetation elements from the leaf-on acquisition. We find that larger flight strip overlap can significantly increase the amount of observed canopy volume due to the added observation angles and increased pulse density.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Remote Sensing of Environment - Volume 194, 1 June 2017, Pages 424-436
نویسندگان
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