This tutorial provides an intuitive connection between many standard 3D geometric concepts used in computer graphics and their higher-dimensional counterparts. We begin by answering frequently asked geometric questions whose resolution, though obvious in hindsight, may be obscure to those who have never ventured beyond the third dimension. We then develop methods for describing, transforming, i...

We have developed an image guided microscopic surgery system for the navigation of surgical procedures that can overlay renderings of anatomical structures that are otherwise invisible. A new histogram-based mutual information maximization technique was applied for alignment of the scope view and three-dimensional computer graphics model. This technique doesn’t require any pre-processing nor ma...

3D Tele-Immersion (3DTI) system brings 3D data of people from geographically distributed locations into the same virtual space to enable interaction in 3D space. One main obstacle of designing 3DTI system is to overcome its high bandwidth requirement when disseminating the 3D data over the network. In this work, we present a novel compression and dissemination framework to reduce the bandwidth ...

Automatic face recognition is becoming increasingly important due to the security applications derived from it. Although the face recognition problem has focused on 2D images, recently, due to the proliferation of 3D scanning hardware, 3D face recognition has become a feasible application. This 3D approach do not use the colour of the faces, so, when it is compared to the more traditional 2D ap...

Image processing is a method that takes image as input and performs some operation on it and gives image as output. It takes input as photograph or video frame and gives output as the parameters related to that image. Image processing will enhance the image by taking the useful information from it .Image processing will take the image as two dimensional signals. Two methods are used for image p...

We present a case-study of building a real-time urban visualisation for the Greater London area. The model that we have created integrates a variety of high quality mapping resources, but emphasises real-time access to the whole model. The model is extensive (a roughly circular area of 60km diameter), and densely populated with polygon detail down to side-walks and aerial photography in limited...

This paper describes a technique for using a simple shading method, such as the Phong lighting model, to approximate the appearance calculated by a more accurate method. The results are then suitable for rapid display using existing graphics hardware and portable via standard graphics API's. Interactive walkthroughs of view-independent nondi use global illumination solutions are explored as the...

Dance animations of a three-dimensional (3D) character rendered with computer graphics (CG) have been created by using motion capture systems or 3DCG animation editing tools. Since these methods require skills and a large amount of work from the creator, automated choreography synthesis system has been developed to make dance motions much easier. However, those systems are not designed to refle...