Title: A new Hilbert invariant for pattern of points under affine transformation
Authors: Chan, C. H.
Hung, Y. S.
Leung, C. H.
Citation: WSCG '2005: Posters: The 13-th International Conference in Central Europe on Computer Graphics, Visualization and Computer Vision 2005 in co-operation with EUROGRAPHICS, University of West Bohemia, Plzen, Czech Republic, p. 11-12.
Issue Date: 2005
Publisher: Václav Skala - UNION Agency
Document type: konferenční příspěvek
URI: http://wscg.zcu.cz/WSCG2005/Papers_2005/Poster/!WSCG2005_Poster_Proceedings_Final.pdf
ISBN: 80-903100-8-7
Keywords: afinní transformace;Hilbertova transformace;Hilbertův invariant
Keywords in different language: afinne transformation;Hilbert transform;Hilbert invariant
Abstract: This paper presents a new Hilbert Invariant for a pattern of points in an image. The Hilbert invariant is invariant under any affine transformation (translation, scaling, rotation and shearing). It is constructed based on the Hilbert transform. Hilbert transform is originally used for generating the imaginary part from the real part of a continuous or discrete complex signal to recover the original one in signal processing. In this paper, the real part is a discrete signal formed by a sequence of coordinates of image points. The Hilbert transformed signal is then used to construct a relative and an absolute affine invariant.
Rights: © Václav Skala - UNION Agency
Appears in Collections:WSCG '2005: Posters

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Please use this identifier to cite or link to this item: http://hdl.handle.net/11025/887

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