Echocardiographic Contour Extraction with Local and Global Priors through Boosting and Level Sets
IEEE-Computer-Society Conference on Computer Vision and Pattern Recognition Workshops, Florida, Amerika Birleşik Devletleri, 20 - 25 Haziran 2009, ss.109-114, (Tam Metin Bildiri)
- Yayın Türü: Bildiri / Tam Metin Bildiri
- Basıldığı Şehir: Florida
- Basıldığı Ülke: Amerika Birleşik Devletleri
- Sayfa Sayıları: ss.109-114
- Yıldız Teknik Üniversitesi Adresli: Hayır
Özet
Extracting endocardium and epicardium from echocardiographic images is a challenging task because of large amounts of noise, signal drop-out, unrelated structures, and unseen wall parts. This paper introduces a new technique that automatically extracts cardiac borders by incorporating local and global priors through boosting and level set methods. The shape-based global prior is incorporated into the system by regularly re-initializing the level set surface under the influence of the expert detected contours. The local priors with image and temporal information are learned through boosting.