A new cardiac motion estimation method based on a spatio-temporal frequency approach and hough transform. Carranza Herrezuelo, N., Cristóbal, G., Ledesma-Carbayo, M., J., & Santos, A. In Computers in Cardiology, volume 33, pages 805-808, 2006.
abstract   bibtex   
Myocardial motion analysis and quantification is of utmost importance for analyzing contractile heart abnormalities and it can be a symptom of a coronary arterial disease. A fundamental problem in processing sequences of images is the computation of the optical flow, which is an approximation to the real image motion. This paper presents a new algorithm for optical flow estimation based on a spatiotemporal-frequency (STF) approach, more specifically on the computation of the Wigner-Ville distribution (WVD) and the Hough Transform (HT) of the motion sequences. Experimental results are compared with variational techniques, where it is shown that the main highlight of the STF+HT approach is its accurate and robust response to noise degradations. Results obtained in real cardiac magnetic resonance images are presented.
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 title = {A new cardiac motion estimation method based on a spatio-temporal frequency approach and hough transform},
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 year = {2006},
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 abstract = {Myocardial motion analysis and quantification is of utmost importance for analyzing contractile heart abnormalities and it can be a symptom of a coronary arterial disease. A fundamental problem in processing sequences of images is the computation of the optical flow, which is an approximation to the real image motion. This paper presents a new algorithm for optical flow estimation based on a spatiotemporal-frequency (STF) approach, more specifically on the computation of the Wigner-Ville distribution (WVD) and the Hough Transform (HT) of the motion sequences. Experimental results are compared with variational techniques, where it is shown that the main highlight of the STF+HT approach is its accurate and robust response to noise degradations. Results obtained in real cardiac magnetic resonance images are presented.},
 bibtype = {inProceedings},
 author = {Carranza Herrezuelo, Noemí and Cristóbal, G. and Ledesma-Carbayo, M. J. and Santos, A.},
 booktitle = {Computers in Cardiology}
}
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