MPhil Thesis Defence


"Illustrative Vascular Image Visualization With Multi-Dimensional
Transfer Function"

By

Mr. Ming Yuen Chan


Abstract

In this thesis, we dedicate our effort to the research topic of vascular
image visualization. Unlike other images, angiograms have several
characteristics which make them difficult to visualize using traditional
methods. We propose several methods to address the related issues and
deliver a system to demonstrate our techniques. Firstly, a framework is
proposed to integrate enhancement and direct volume rendering into one
visualization pipeline using multi-dimensional transfer function tailored
for visualizing the curvilinear and line structures in angiograms. To ease
the difficulties in defining the ROIs or specific vessels for
visualization, we propose a MIP-guided method for user selection. Besides,
we present a feature-preserving interpolation method to render very thin
vessels which are usually missed in traditional approaches. Furthermore,
several non-photorealistic rendering methods are introduced into our
system to increase the illustrative power of visualization. In addition,
we propose a view selection method for angiographic volume to ease the
difficulty in finding meaningful views which can deliver useful
information in the visualization process.


Date:				Thursday, 24 August 2006

Time:				4:00p.m.-6:00p.m.

Venue:				Room 5505
				Lifts 25-26

Committee Members:		Dr. Albert Chung (Supervisor)
				Dr. Huamin Qu (Supervisor)
				Dr. James Kwok (Chairperson)
				Dr. Pengcheng Shi (ECE)


**** ALL are Welcome ****