Enhancing virtual colonoscopy with a new visualization measure
In this paper, a new 3D surface visualization measure is proposed. The proposed measure can be used in Virtual Colonoscopy (VC) as a caparison metric of different visualization approaches and each other. The new measure utilizes the projection direction of the camera axis and surface normal as well as the camera focal length to the surface distance ratio, thus, providing a more realistic interpretation of the actual visible surface projected. These enhancements avoid many of the shortcomings of older metrics. The Virtual Fly-Through and Fly-Over visualization approaches used in VC are compared. Result show the advantages of using the proposed measure using color coding Heat-maps to enhance the visualization process.