title: Volumetric ultrasound panorama based on 3D SIFT.
abstract: The reconstruction of three-dimensional (3D) ultrasound panorama from multiple ultrasound volumes can provide a wide field of view for better clinical diagnosis. Registration of ultrasound volumes has been a key issue for the success of this panoramic process. In this paper, we propose a method to register and stitch ultrasound volumes, which are scanned by dedicated ultrasound probe, based on an improved 3D Scale Invariant Feature Transform (SIFT) algorithm. We propose methods to exclude artifacts from ultrasound images in order to improve the overall performance in 3D feature point extraction and matching. Our method has been validated on both phantom and clinical data sets of human liver. Experimental results show the effectiveness and stability of our approach, and the precision of our method is comparable to that of the position tracker based registration.
authors.affiliation: Department of Computer Science and Engineering, The Chinese University of Hong Kong, Hong Kong, SAR, China.
authors.forename: Dong
authors.initials: D
authors.lastname: Ni
authors.forename: Yingge
authors.initials: Y
authors.lastname: Qul
authors.forename: Xuan
authors.initials: X
authors.lastname: Yang
authors.forename: Yim Pan
authors.initials: YP
authors.lastname: Chui
authors.forename: Tien-Tsin
authors.initials: TT
authors.lastname: Wong
authors.forename: Simon S M
authors.initials: SS
authors.lastname: Ho
authors.forename: Pheng Ann
authors.initials: PA
authors.lastname: Heng
mesh_terms: D000465:Algorithms; D005583:Fourier Analysis; D007089:Image Enhancement / Q000379:methods*; D007090:Image Interpretation, Computer-Assisted / Q000379:methods*; D021621:Imaging, Three-Dimensional / Q000379:methods*; D010363:Pattern Recognition, Automated / Q000379:methods*; D015203:Reproducibility of Results; D012680:Sensitivity and Specificity; D014463:Ultrasonography / Q000379:methods*