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
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
علوم زمین و سیارات
کامپیوتر در علوم زمین
چکیده انگلیسی
Our results at 1Â m voxel size show that even with the highest average pulse density of 11Â 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
Journal: Remote Sensing of Environment - Volume 194, 1 June 2017, Pages 424-436
نویسندگان
Daniel Kükenbrink, Fabian D. Schneider, Reik Leiterer, Michael E. Schaepman, Felix Morsdorf,