Observation Selection, Total Variation, and L-Curve Methods for LiDAR Data Denoising

Figure 4

The denoising results by the “DWT” (a), “EMD-CIIT” (b), and our proposed scheme (c) for the LiDAR data collected on 4 March 2015 from 21 : 26 : 16 to 21 : 46 : 39 with a fixed azimuth angle (). The SNR values of the corresponding observed LiDAR data are shown in the (d).

(a)

(b)

(c)

(d)