Title
2D Image Analysis by Generalized Hilbert Transforms in Conformal Space
Abstract
This work presents a novel rotational invariant quadrature filter approach - called the conformal monogenic signal - for analyzing i(ntrinsic)1D and i2D local features of any curved 2D signal such as lines, edges, corners and junctions without the use of steering. The conformal monogenic signal contains the monogenic signal as a special case for i1D signals and combines monogenic scale space, phase, direction/orientation, energy and curvature in one unified algebraic framework. The conformal monogenic signal will be theoretically illustrated and motivated in detail by the relation of the 3D Radon transform and the generalized Hilbert transform on the sphere. The main idea is to lift up 2D signals to the higher dimensional conformal space where the signal features can be analyzed with more degrees of freedom. Results of this work are the low computational time complexity, the easy implementation into existing Computer Vision applications and the numerical robustness of determining curvature without the need of any derivatives.
Year
DOI
Venue
2008
10.1007/978-3-540-88688-4_47
ECCV (2)
Keywords
Field
DocType
easy implementation,filter approach,computer vision application,higher dimensional conformal space,generalized hilbert transforms,monogenic signal,conformal space,signal feature,monogenic scale space,generalized hilbert,i1d signal,conformal monogenic signal,image analysis,radon transform,degree of freedom,hilbert transform,computer vision,scale space,time complexity
Topology,Curvature,Mathematical analysis,Radon space,Computer science,Scale space,Conformal map,Invariant (mathematics),Hilbert transform,Quadrature filter,Radon transform
Conference
Volume
ISSN
Citations 
5303
0302-9743
6
PageRank 
References 
Authors
0.63
4
3
Name
Order
Citations
PageRank
Lennart Wietzke116311.40
Oliver Fleischmann2313.37
Gerald Sommer326921.93