Research interests include: 1. computer Vision: Pose estimation using moment functions; Object recognition using moment invariants; Moment based algorithms for stereo vision. 2. Image Analysis: Discrete orthogonal image transforms; Image compression using Tchebichef transform; Invariant characteristics of shape descriptors; Fast computation of moment invariants. 3. Computer Graphics: Real-time rendering; Non-photorealistic rendering; Terrain rendering algorithms; Image-based rendering and view synthesis.