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- W3008049776 abstract "The terrestrial laser scanner (TLS) has been widely used in forest inventories. However, with increasing precision of TLS, storing and transmitting tree point clouds become more challenging. In this paper, a novel compressed sensing (CS) scheme for broad-leaved tree point clouds is proposed by analyzing and comparing different sparse bases, observation matrices, and reconstruction algorithms. Our scheme starts by eliminating outliers and simplifying point clouds with statistical filtering and voxel filtering. The scheme then applies Haar sparse basis to thin the coordinate data based on the characteristics of the broad-leaved tree point clouds. An observation procedure down-samples the point clouds with the partial Fourier matrix. The regularized orthogonal matching pursuit algorithm (ROMP) finally reconstructs the original point clouds. The experimental results illustrate that the proposed scheme can preserve morphological attributes of the broad-leaved tree within a range of relative error: 0.0010%–3.3937%, and robustly extend to plot-level within a range of mean square error (MSE): 0.0063–0.2245." @default.
- W3008049776 created "2020-03-06" @default.
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- W3008049776 date "2020-02-26" @default.
- W3008049776 modified "2023-09-25" @default.
- W3008049776 title "Compression and Recovery of 3D Broad-Leaved Tree Point Clouds Based on Compressed Sensing" @default.
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- W3008049776 doi "https://doi.org/10.3390/f11030257" @default.
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