Optical Flow Based Approach for Automatic Cardiac Cycle Estimation in Ultrasound Images of the Carotid

Conference paper
Part of the Lecture Notes in Computer Science book series (LNCS, volume 9164)


This paper proposes a method to detect a reference frame in an ultrasound video of the carotid artery. This reference frame, usually located at the end of the diastole, is used as the location to measure several vascular biomarkers. Our approach is based on the analysis of the movement of the carotid walls in ultrasound images using an optical flow technique. A periodic movement resembling heart beat is observed in the resulting signals. The comparison of these signals with electrocardiograms validates the proposed method for detecting the reference frame.


Optical flow Carotid ultrasound Electrocardiogram Heart rate 



T. Araújo and G. Aresta equally contributed to this work. This work is financied by the FCT - Fundação para a Ciência e Tecnologia (Portuguese Foundation for Science and Technology) within the project UID/EEA/50014/2013 and the grant contract SFRH/BPD/79154/2011.


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Copyright information

© Springer International Publishing Switzerland 2015

Authors and Affiliations

  1. 1.INESC TEC - INESC Tecnologia e CiênciaPortoPortugal
  2. 2.Faculdade de Engenharia da Universidade do PortoPortoPortugal
  3. 3.Faculdade de Medicina da Universidade do PortoPortoPortugal

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