title: Fast free-vibration modal analysis of 2-D physics-based deformable objects.
abstract: This paper presents an accurate, very fast approach for the deformations of two-dimensional physically based shape models representing open and closed curves. The introduced models are much faster than other deformable models (e.g., finite-element methods). The approach relies on the determination of explicit deformation governing equations that involve neither eigenvalue decomposition, nor any other computationally intensive numerical operation. The approach was evaluated and compared with another fast and accurate physics-based deformable shape odel, both in terms of deformation accuracy and computation time. The conclusion is that the introduced model is completely accurate and is deformed very fast on current personal computers (Pentium III), achieving more than 380 contour deformations per second.
authors.affiliation: Department of Informatics, Aristotle University of Thessaloniki, 54124 Thessaloniki, Greece. skrinidi@zeus.csd.auth.gr
authors.forename: Stelios
authors.initials: S
authors.lastname: Krinidis
authors.forename: Ioannis
authors.initials: I
authors.lastname: Pitas
mesh_terms: D000465:Algorithms; D001185:Artificial Intelligence; D016000:Cluster Analysis; D004548:Elasticity; D006801:Humans; D007089:Image Enhancement / Q000379:methods; D007090:Image Interpretation, Computer-Assisted / Q000379:methods*; D016247:Information Storage and Retrieval / Q000379:methods*; D008046:Lip / Q000033:anatomy & histology* / Q000502:physiology*; D009068:Movement / Q000502:physiology*; D009716:Numerical Analysis, Computer-Assisted; D009862:Online Systems; D010363:Pattern Recognition, Automated / Q000379:methods*; D015203:Reproducibility of Results; D012680:Sensitivity and Specificity; D012815:Signal Processing, Computer-Assisted; D014732:Vibration