RESEARCH

• Image and video coding
  • Wavelet Transform 2D (IEEE IP 1992).
  • Lattice Vector Quantization
  • t+2D Motion Compensated Temporal Lifting Transform
  • Optimal Model Based Bit allocation EBWIC
  • Optimal Decoding (IEEE MMA 2003).
  • Entropy-based distortion measure and bit allocation for wavelet image compression (IEEE IP 2007).
• Inverse problems
  • Half Quadratic Regularization (IEEE IP 1997).
  • 3D Reconstruction
  • Deconvolution and image denoising
• Image and video Analysis
  • Region Based Segmentation and Motion Estimation using Shape Gradient Method (IJCV 2003).
  • Segmentation uing shape Priors (IEEE CSVT 2003)
  • Parametric Active Contours Segmentation using "Smoothing Bsplines" (IEEE IP 2004)
  • Segmentation and motion estimation using non parametric models
  • Object tracking (IEEE CVPR 2007).
• Learning for Computer Vision
  • Content-based Image Retrieval (CBMI 2008)
  • Image Categorization (MMM 2009)
  • Multiclass Boosting
  • Leveraged kNN
  • Computing kNN using GPU (CVPR 2008)