Model reconstruction for computer game develop
(K. H. Wong)

The aim of this research is to help game developers to capture real scenes to be used in virtual sites construction. Many game players prefer interactive games situated in real-world scenes to give them the realistic feeling. However, capturing real scene and modelling them are time consuming and expensive. Making some procedures automatic will save a lot of time and cost. Apart from game developments there are other applications, for example, users can develop virtual walkthrough web pages for Internet users. Also home game players can capture their favourite environments and objects to be displayed interactively in three dimensions. Since a full scale environment requires multiple image sequences to cover the whole area. Our research will concentrate on combining multiple sequences for model reconstruction. The research issues are as follows. (1) We propose a tracking technique called Interacting Multiple Model Methods (IMM) for tracking the camera motion for a long image sequence to reduce error. (2) If the distance between the camera and the object in one sequence is very different from the others there is a multi-scale problem in combining them. We will try to solve this by a coarse-to-fine global optimization technique. (3) Additional user inputs may be used to assist the software for finding the correct model.