NDLI: Monogenic phase based myocardial motion analysis from cardiac ultrasound with transverse oscillations

Content Provider	IEEE Xplore Digital Library
Author	Alessandrini, M. Liebgott, H. Friboulet, D. Bernard, O.
Copyright Year	2012
Description	Author affiliation: CREATIS, Univ. Lyon 1, Lyon, France (Alessandrini, M.; Liebgott, H.; Friboulet, D.; Bernard, O.)
Abstract	We present a motion estimation algorithm for cardiac ultrasound images with transverse oscillations after baseband demodulation in the axial direction (B-mode TO). Our algorithm computes the motion by solving the optical-flow equation locally on a sliding spatial window. Conservation of the monogenic phase is assumed in lieu of the traditional pixel brightness. A local affine model accounts for typical cardiac motions as contraction/expansion and shearing. A coarse-to-fine B-spline scheme allows a robust and effective computation of the model parameters. To improve the precision of the estimate, we adopt a pyramidal refinement scheme based on the multiband nature of B-mode TO images: the lowest harmonic is used to produce a rough estimate of the displacement; higher harmonics are then used to refine it thanks to their higher level of detail. Performance was evaluated on realistic simulated cardiac ultrasound sequences and compared to a well-established algorithm. With respect to the latter, our algorithm produced an average reduction of 40.8% of the endpoint error. Also, the contribution of the higher lateral harmonics typical of B-mode TO images was shown to considerably improve the estimation accuracy.
Starting Page	1098
Ending Page	1101
File Size	533921
Page Count	4
File Format	PDF
ISBN	9781467345613
ISSN	19485719
e-ISBN	9781467345620
DOI	10.1109/ULTSYM.2012.0273
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2012-10-07
Publisher Place	Germany
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Oscillators Ultrasonic imaging Motion estimation Standards Algorithm design and analysis Mathematical model Estimation
Content Type	Text
Resource Type	Article

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1	Ministry of Education (GoI), Department of Higher Education	Sanctioning Authority	https://www.education.gov.in/ict-initiatives
2	Indian Institute of Technology Kharagpur	Host Institute of the Project: The host institute of the project is responsible for providing infrastructure support and hosting the project	https://www.iitkgp.ac.in
3	National Digital Library of India Office, Indian Institute of Technology Kharagpur	The administrative and infrastructural headquarters of the project	Dr. B. Sutradhar bsutra@ndl.gov.in
4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
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