Title :
Wavelet based corner detection using singular value decomposition
Author :
Quddus, Azhar ; Gabbouj, Moncef
Author_Institution :
Signal Process. Lab., Tampere Univ. of Technol., Finland
Abstract :
In this paper we present a novel technique for wavelet-based corner detection using singular value decomposition (SVD). Here SVD facilitates the selection of global natural scale in the discrete wavelet transform. We define natural scale as the level associated with most prominent (dominant) eigenvalue. The eigenvector corresponding to the dominant eigenvalue is considered as the natural scale. The corners are detected at the locations corresponding to modulus maxima. Results show the suitability of the approach. Comparison with a recently proposed technique is also provided
Keywords :
discrete wavelet transforms; edge detection; eigenvalues and eigenfunctions; feature extraction; image representation; singular value decomposition; SVD; discrete wavelet transform; dominant eigenvalue; eigenvector; global natural scale; image corners; modulus maxima; most prominent eigenvalue; singular value decomposition; wavelet decomposition; wavelet-based corner detection; Data preprocessing; Discrete wavelet transforms; Eigenvalues and eigenfunctions; Equations; Filtering; Gabor filters; Image analysis; Matrix decomposition; Singular value decomposition; Wavelet analysis;
Conference_Titel :
Acoustics, Speech, and Signal Processing, 2000. ICASSP '00. Proceedings. 2000 IEEE International Conference on
Conference_Location :
Istanbul
Print_ISBN :
0-7803-6293-4
DOI :
10.1109/ICASSP.2000.859281