Paper Info
Title
Fuzzy Vector Median Based Surface Smoothing in a Haptic Environment
Abstract
This paper proposes a novel approach for smoothing surfaces represented by triangular meshes in a haptic environment. The proposed method is a two-step procedure: surface normal smoothing through fuzzy vector median (FVM) filtering followed by integration of surface normals for vertex position update based on the least absolute error (LAE) criteria. The median and Order Statistic based filters are extensively used in signal processing, especially image processing due to their ability to reject outliers and preserve features such as edges and monotonic regions. More recently, fuzzy ordering theory has been introduced to allowaveraging amongst similarly valued samples. This paper extends the fuzzy ordering concept to vector based data and introduces the fuzzy vector median filter. The application of FVM filters to surface normal smoothing yields improved results over previously introduced normal smoothing algorithms. The improved filtering results, coupled with LAE vertex position update, produces surface smoothing that minimizes the effects of noise while simultaneously preserving detail features. Simulation results are presented showing the performance of the proposed method and its advantages over commonly used surface smoothing algorithms.Additionally, optimization procedures for FVM are derived and evaluated.
Year
DOI
Venue
2003
10.1109/HAPTIC.2003.1191286
HAPTICS
Keywords
Field
DocType
surface normal,smoothing surface,fuzzy vector,fuzzy vector median,surface smoothing,normal smoothing yield,normal smoothing algorithm,normal smoothing,fvm filter,haptic environment,performance,noise reduction,optimization,error correction,triangular mesh,image processing,median filter,order statistic,filtering,signal processing,anisotropic magnetoresistance,fuzzy logic,fuzzy set theory,statistics,haptic interface,simulation
Signal processing,Mathematical optimization,Median filter,Computer science,Fuzzy logic,Algorithm,Image processing,Filter (signal processing),Fuzzy set,Smoothing,Normal
Conference
ISBN
Citations 
PageRank 
0-7695-1890-7
0
0.34
References 
Authors
8
2
Name
Order
Citations
PageRank
Yuzhong Shen118421.96
Kenneth E. Barner281270.19