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About

About

I'm Teresa Araújo and I'm a PhD student and researcher at INESC TEC and Faculdade de Engenharia da Universidade do Porto (FEUP).

My master degree is in Bioengineering (FEUP), specifically in the field of Biomedical Engineering. 

I am mainly interested in the fields of computer vision, machine learning and medical image analysis. My current research topic is the grading of diabetic retinopathy in color eye fundus images.

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Details

001
Publications

2015

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

Authors
Araujo, T; Aresta, G; Rouco, J; Ferreira, C; Azevedo, E; Campilho, A;

Publication
IMAGE ANALYSIS AND RECOGNITION (ICIAR 2015)

Abstract
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.