Paper Title:
Wavelet Transform Based 3D Scattered Data Processing in Binocular Micro Stereovision System
  Abstract

In micro stereovision system, false matching due to the randomicity of image signal makes 3D reconstruction data contain a large amount of abnormal data in the form of noise (pulse noise, Gauss noise). In order to obtain a more accurate 3D reconstruction shape, a novel method of 3D scattered data processing, which is a combination of wavelet transform and extended Vector Median Filters, is proposed to use wavelet transform to realize primary denosing, and use extended Vector Median Filters to further denoise thereby achieving higher precision 3D measurement. In wavelet based denosing, wavelet based edge detector in vector space removes edge abnormal points effectively, moreover, boundary tracking is used to prune out the image background from the matching area to remove exterior abnormal points. Then the local areas determined by edges are filtered by extended vector median filter. Experimental results indicate that the method proposed is effective to removing abnormal data from the 3D reconstructed data and enables 3D measurement position accuracy to reach 3 m µ .

  Info
Periodical
Key Engineering Materials (Volumes 291-292)
Edited by
Yury M. Baron, Jun'ichi Tamaki and Tsunemoto Kuriyagawa
Pages
673-0
DOI
10.4028/www.scientific.net/KEM.291-292.673
Citation
C. Liu, W. Pei, Z.Y. Xia, S. Niyokindi, J.C. Song, L. D. Wang, "Wavelet Transform Based 3D Scattered Data Processing in Binocular Micro Stereovision System", Key Engineering Materials, Vols. 291-292, pp. 673-0, 2005
Online since
August 2005
Export
Price
$32.00
Share

In order to see related information, you need to Login.

In order to see related information, you need to Login.

Authors: Qing Jiang Chen, Jian Tang Zhao
Abstract:In this work, the notion of vector-valued multiresolution analysis and biort- ogonal vector–valued wavelets is introduced. The existence of...
323
Authors: Yun Jie Xu
Abstract:Fault diagnosis of roller bearings is very complex, so it is difficult to use the mathematical model to describe their faults. Whose...
620
Authors: Fei Xiao, Xian Li Liu, Yan Xin Wang, Li Jia Liu, Da Qu
Chapter 2: Simulation of Machining Processes
Abstract:According to the principle of the experimental modal analysis, this study is based on tool system of the MIKRON UCP 710 numerical control...
159
Authors: Xiao Yun Gong, Jie Han, Hong Chen, Wen Ping Lei
Chapter 5: Control and Detection Technology
Abstract:Wavelet envelope demodulation method can distinguish the fault information from complex bearing vibration signal. However, traditional signal...
873
Authors: Ying Chen, Lei Zhang, Xiao Juan Ji
Chapter 15: Information Security Technology
Abstract:Because less data can be hidden on the small vector data set , its copyright is very difficult to obtain protection, and the data is...
2999