Publications

Ongoing Research

1. Real-time (Recursive and Causal) Robust PCA
• News
  
• 9/22/10: Paper and videos posted
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2. Sequential Compressed Sensing and applications in dynamic MRI
   
• News:
  
• 6/8/09: code for Modified-CS posted
  
• 6/5/09: new code for LS-CS and KF-CS posted
  
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3. Particle Filters for Tracking on Large Dimensional State Spaces
•  Deformable Contour Tracking using PF-MT (Particle Filter with Mode Tracker)
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4. ELL for "Slow" Change Detection in State Space Models (with Unknown Change Parameters) and Analyzing the Errors in Estimating ELL
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5. NonStationary "Shape Activities" (NSSA) and Applications in Activity Recognition  (page needs to be updated - see publications)
   

Some old videos   

Past Research

1. Principal Component Null Space Analysis (PCNSA) for Image, Video (or any large dimensional pattern) Classification
2. Moving Object Detection and Compression in Infra-Red (IR) Sequences
3. A 2-D Hand Gesture Recognition System for Robot Control  (undergraduate research)
   

Recent Talks

• Sequential Compressive Sensing
  
• Overview talk on Recursive and Causal Sparse Reconstruction (INFORMS special session on Compressed Sensing and UCSD, October 2009)
  
• Modified-CS: Modifying Compressive Sensing for Problems with Partially Known Support, ISIT 2009
• Analyzing Least Squares and Kalman Filtered Compressed Sensing, ICASSP 2009
  
• Dynamic MR Image Reconstruction using Kalman filtered Compressed Sensing, ICASSP 2009
• Kalman Filtered Compressed Sensing  ICIP 2008
  
• Large dimensional Particle Filtering and Applications
  
• Particle Filtering with Efficient Importance Sampling and Conditional Posterior Mode Tracking, Invited talk at the SAMSI Sequential Monte Carlo Mid-program workshop (February 2009)
  
• Particle filtering for large dimensional and multimodal problems,  Invited talk at the Opening Workshop for the SAMSI program on Sequential Monte Carlo Methods (September 2008)
• Deformable Contour Tracking and System Identification, Invited talks at
  
• SAMSI workshop on Geometry and Statistics of Shape Spaces (July'07),
  
• IPAM workshop on Random Shapes for Image Processing (May'07), 
  
• IMA Shape Spaces workshop (March'06)