Novel Adaptive Laser Scanning Method for Point Clouds of Free-Form Objects

Laser scanners are widely used to collect coordinates, also known as point-clouds, of three-dimensional free-form objects. For creating a solid model from a given point-cloud and transferring the data from the model, features-based optimization of the point-cloud to minimize the number if points in...

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Main Authors: Yufu Zang, Bisheng Yang, Fuxun Liang, Xiongwu Xiao
Format: Article
Language:English
Published: MDPI AG 2018-07-01
Series:Sensors
Subjects:
Online Access:http://www.mdpi.com/1424-8220/18/7/2239
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author Yufu Zang
Bisheng Yang
Fuxun Liang
Xiongwu Xiao
author_facet Yufu Zang
Bisheng Yang
Fuxun Liang
Xiongwu Xiao
author_sort Yufu Zang
collection DOAJ
description Laser scanners are widely used to collect coordinates, also known as point-clouds, of three-dimensional free-form objects. For creating a solid model from a given point-cloud and transferring the data from the model, features-based optimization of the point-cloud to minimize the number if points in the cloud is required. To solve this problem, existing methods mainly extract significant points based on local surface variation of a predefined level. However, comprehensively describing an object’s geometric information using a predefined level is difficult since an object usually has multiple levels of details. Therefore, we propose a simplification method based on a multi-level strategy that adaptively determines the optimal level of points. For each level, significant points are extracted from the point cloud based on point importance measured by both local surface variation and the distribution of neighboring significant points. Furthermore, the degradation of perceptual quality for each level is evaluated by the adjusted mesh structural distortion measurement to select the optimal level. Experiments are performed to evaluate the effectiveness and applicability of the proposed method, demonstrating a reliable solution to optimize the adaptive laser scanning of point clouds for free-forms objects.
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spelling doaj.art-cf72dc554e53433ba0b129c0890aeefa2022-12-22T02:55:17ZengMDPI AGSensors1424-82202018-07-01187223910.3390/s18072239s18072239Novel Adaptive Laser Scanning Method for Point Clouds of Free-Form ObjectsYufu Zang0Bisheng Yang1Fuxun Liang2Xiongwu Xiao3School of Remote Sensing & Geomatics Engineering, Nanjing University of Information Science & Technology, Nanjing 210044, ChinaState Key Laboratory of Information Engineering in Surveying, Mapping, and Remote Sensing, Wuhan University, Wuhan 430079, ChinaState Key Laboratory of Information Engineering in Surveying, Mapping, and Remote Sensing, Wuhan University, Wuhan 430079, ChinaState Key Laboratory of Information Engineering in Surveying, Mapping, and Remote Sensing, Wuhan University, Wuhan 430079, ChinaLaser scanners are widely used to collect coordinates, also known as point-clouds, of three-dimensional free-form objects. For creating a solid model from a given point-cloud and transferring the data from the model, features-based optimization of the point-cloud to minimize the number if points in the cloud is required. To solve this problem, existing methods mainly extract significant points based on local surface variation of a predefined level. However, comprehensively describing an object’s geometric information using a predefined level is difficult since an object usually has multiple levels of details. Therefore, we propose a simplification method based on a multi-level strategy that adaptively determines the optimal level of points. For each level, significant points are extracted from the point cloud based on point importance measured by both local surface variation and the distribution of neighboring significant points. Furthermore, the degradation of perceptual quality for each level is evaluated by the adjusted mesh structural distortion measurement to select the optimal level. Experiments are performed to evaluate the effectiveness and applicability of the proposed method, demonstrating a reliable solution to optimize the adaptive laser scanning of point clouds for free-forms objects.http://www.mdpi.com/1424-8220/18/7/2239adaptive representationgeometric multi-levelsurface variationradial basis functionperceptual quality
spellingShingle Yufu Zang
Bisheng Yang
Fuxun Liang
Xiongwu Xiao
Novel Adaptive Laser Scanning Method for Point Clouds of Free-Form Objects
Sensors
adaptive representation
geometric multi-level
surface variation
radial basis function
perceptual quality
title Novel Adaptive Laser Scanning Method for Point Clouds of Free-Form Objects
title_full Novel Adaptive Laser Scanning Method for Point Clouds of Free-Form Objects
title_fullStr Novel Adaptive Laser Scanning Method for Point Clouds of Free-Form Objects
title_full_unstemmed Novel Adaptive Laser Scanning Method for Point Clouds of Free-Form Objects
title_short Novel Adaptive Laser Scanning Method for Point Clouds of Free-Form Objects
title_sort novel adaptive laser scanning method for point clouds of free form objects
topic adaptive representation
geometric multi-level
surface variation
radial basis function
perceptual quality
url http://www.mdpi.com/1424-8220/18/7/2239
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AT xiongwuxiao noveladaptivelaserscanningmethodforpointcloudsoffreeformobjects