Description 
x, 187 pages : illustrations ; 24 cm 
Series 
Lecture notes in mathematics, 00758434 ; 1805 

Lecture notes in mathematics (SpringerVerlag)

Contents 
Pt. I. The curve smoothing problem  1. Curve evolution and image processing  2. Rudimentary bases of curve geometry  Pt. II. Theoretical curve evolution  3. Geometric curve shortening flow  4. Curve evolution and level sets  Pt. III. Numerical curve evolution  5. Classical numerical methods for curve evolution  6. A geometrical scheme for curve evolution  A Proof of Thm.4.34 
Summary 
In image processing, "motions by curvature" provide an efficient way to smooth curves representing the boundaries of objects. In such a motion, each point of the curve moves, at any instant, with a normal velocity equal to a function of the curvature at this point. This book is a rigorous and selfcontained exposition of the techniques of "motion by curvature". The approach is axiomatic and formulated in terms of geometric invariance with respect to the position of the observer. This is translated into mathematical terms, and the author develops the approach of Olver, Sapiro and Tannenbaum, which classifies all curve evolution equations. He then draws a complete parallel with another axiomatic approach using levelset methods: this leads to generalized curvature motions. Finally, novel, and very accurate, numerical schemes are proposed allowing one to compute the solution of highly degenerate evolution equations in a completely invariant way. The convergence of this scheme is also proved 
Bibliography 
Includes bibliographical references (pages [177]184) and index 
Notes 
Also available via the World Wide Web. (Restricted to LINK subscribers) 

System requirements: Internet connectivity, World Wide Web browser, and Adobe Acrobat reader 

Mode of access: World Wide Web 

Lecture notes in mathematics (SpringerVerlag) no:1805 00758434 
Subject 
Mathematics.


Computer vision.


Differential equations, Partial.


Global differential geometry.


Curves, Plane.


Curves on surfaces.


Differential equations, Parabolic  Numerical solutions.


Image processing.

LC no. 
2003041554 
ISBN 
3540004025 softcover acidfree paper 

9783540004028 softcover alkaline paper 
