Abstract
Ultrasound images are difficult to segment because of their noisy and low contrast nature which makes them challenging to extract the important features. Typical intensity-gradient based approaches are not suitable for these low contrast images while it has been shown that local phase based technique provides far better results than intensity based methods for ultrasound images. In this study, we adopt local phase based feature asymmetry (FA) measure using monogenic signal for 3-D and 4-D feature extraction. This paper presents our work on: (1) comparison between intensity gradient based feature detectors and phase based feature detector, (2) formulating a 4-D version of FA measure and comparing its results with 3-D FA measure, and (3) comparing quadrature pair of filters in terms of feature detection performance.
Original language | English |
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Title of host publication | Proceedings - 12th International Conference on Frontiers of Information Technology, FIT 2014 |
Publisher | Institute of Electrical and Electronics Engineers (IEEE) |
Pages | 251-256 |
Number of pages | 6 |
ISBN (Electronic) | 9781479975051 |
DOIs | |
Publication status | Published - 2014 |
Event | 12th International Conference on Frontiers of Information Technology, FIT 2014 - Islamabad, Pakistan Duration: 17 Dec 2014 → 19 Dec 2014 |
Publication series
Name | Proceedings - 12th International Conference on Frontiers of Information Technology, FIT 2014 |
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Conference
Conference | 12th International Conference on Frontiers of Information Technology, FIT 2014 |
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Country/Territory | Pakistan |
City | Islamabad |
Period | 17/12/14 → 19/12/14 |
Bibliographical note
Publisher Copyright:© 2014 IEEE.
Keywords
- 4-D echocardiography
- feature extraction
- local phase
- quadrature filter
ASJC Scopus subject areas
- Information Systems