Low-cost tree structure automatic reconstruction method for lossless estimation of standing wood volume
A tree and wood technology, applied in the field of automatic reconstruction of low-cost tree structures, can solve the problems of difficult quantification, unknown, and high destructive costs of measurement results
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[0041] (1) Acquisition and processing of TP point cloud
[0042] ①Photo collection
[0043]Two Kodak PixPro SL25 lens cameras were mounted on a stick with a length of 60 cm. Before working, the camera needs to be calibrated and corrected by the GML Camera Calibration Toolbox 0.75 software, and the PixPro RemoteViewer 2.6.5 intelligent software is connected through the built-in WIFI to make the two cameras work synchronously, and the captured photos are transferred to the mobile phone or saved to the camera SD card. Place 5 target poles with a length of 3m in the sample plot and take photos. The length of the target poles must be determined in advance, and every two poles can be seen before each other, so as to facilitate the matching of forest inventory data with photogrammetry point clouds and the post-measurement generated point cloud. After extracting the relative coordinates of all trees and target poles from the ground photogrammetry point cloud, the total station was ...
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