Motion visualization of ultrasound imaging

Authors:
Dong C. Liu;Longlong Hou;Paul S. Liu
Affiliations:
College of Computer Science, Sichuan University, China;College of Computer Science, Sichuan University, China;Department of Electrical Engineering and Computer Science, University of California, Berkeley
Venue:
ISVC'05 Proceedings of the First international conference on Advances in Visual Computing
Year:
2005

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Abstract

This paper presents a method for motion visualization of medical ultrasound imaging based on line integral convolution (LIC) algorithms. The motion vector is derived by a hierarchical-type of block matching algorithm with sub-pixel accuracy. Then, the original pixel-based LIC algorithm has been extended to block-based processing and the proposed method can handle both the steady and unsteady motion where the size of the convolution filter is a function of the motion strength. Test results are reported to verify the effectiveness of the proposed approach both in synthetic and in-vivo ultrasound images. We also present a display technique to show the grey-scale LIC image for the motion direction and color coded motion amplitude to enhance the motion strength.