Title :
Shape-based matching of heart sounds
Author :
Syeda-Mahmood, Tanveer ; Wang, Fei
Author_Institution :
IBM Almaden Res. Center, San Jose, CA
Abstract :
In this paper, we present an approach to matching heart sounds based on modeling the morphological variations of audio envelopes through a constrained nonrigid translation transform. Similar heart sounds are then retrieved by recovering the corresponding alignment transform using a variant of shape-based dynamic time warping. Results of comparison with other audio retrieval methods are reported on a large database of heart sounds.
Keywords :
audio signal processing; bioacoustics; cardiology; information retrieval; mathematical morphology; medical signal processing; pattern matching; transforms; audio envelope retrieval; constrained nonrigid translation transform; heart sound retrieval; morphological variation modeling; shape-based dynamic time warping; shape-based heart sound matching; Audio databases; Cardiac disease; Cardiovascular diseases; Heart beat; Information retrieval; Shape measurement; Signal analysis; Spectral analysis; Time factors; Time frequency analysis;
Conference_Titel :
Pattern Recognition, 2008. ICPR 2008. 19th International Conference on
Conference_Location :
Tampa, FL
Print_ISBN :
978-1-4244-2174-9
Electronic_ISBN :
1051-4651
DOI :
10.1109/ICPR.2008.4761691
