Comparative study for height accuracy of Full waveform LiDAR data
نویسندگان
چکیده
منابع مشابه
A Signal Denoising Method for Full-waveform Lidar Data
The lack of noise reduction methods resistant to waveform distortion can hamper correct and accurate decomposition in the processing of full-waveform LiDAR data. This paper evaluates a time-domain method for smoothing and reducing the noise level in such data. The Savitzky-Golay (S-G) approach approximates and smooths data by taking advantage of fitting a polynomial of degree d, using local lea...
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Given sufficient data storage capacity, today’s full-waveform LiDAR systems are able to record and store the entire laser pulse echo signal. This provides the possibility of further analyzing the physical characteristics of the reflecting objects. However the size of the captured data is enormous and currently not practical. Thus arises the need for compressing the waveform data. We have develo...
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When full-waveform LiDAR (FW-LiDAR) data are applied to extract the component feature information of interest targets, there exist a problem of components lost during the waveform decomposition procedure, which severely constrains the performance of subsequent targets information extraction. Focusing on the problem above, an enhance component detection algorithm, which combines Finite Mixed Met...
متن کاملMorphological characterization of full waveform airborne LiDAR data Context
The main principle of remote sensing LiDAR is to send a laser pulse from a transmitter and to analyze the backscattered signal (in particular its largest amplitude) to reconstruct the 3D position of the encountered objects (to which the intensity of the wave is generally associated). Using airborne LiDAR, it is possible to obtain a series of 3D positions whose analysis is extremely interesting ...
متن کاملProcessing Full-waveform Lidar Data: Modelling Raw Signals
Unlike airborne multi-echo laser scanner systems, full-waveform systems are able to digitize and record the entire backscattered signal of each laser pulse. It has been demonstrated that decomposing the return waveforms into a mixture of Gaussian components was suitable. In this paper, we focus on the improvement of peak detection and of raw signal modelling. Refined peak detection greatly incr...
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ژورنال
عنوان ژورنال: Korean Journal of Geomatics
سال: 2011
ISSN: 1598-4850
DOI: 10.7848/ksgpc.2011.29.3.257