Publications
PhD Thesis
"Scene Analysis under Variable Illumination using Gradient Domain Methods", Dept. of Electrical and Computer Engineering, University of Maryland, College Park, 2006 pdf


SIGGRAPH

A. Agrawal, Y. Xu & R. Raskar, "Invertible Motion Blur in Video", ACM
Transactions on Graphics (Proceedings of SIGGRAPH) 2009
pdf, Video, Talk Slides

D. Lanman, R. Raskar, A. Agrawal & G. Taubin, "Shield Fields: Modeling and Capturing 3D Occluders", SIGGRAPH Asia 2008
Low res pdf (1MB), High res pdf (13MB), Video (25MB), Video (youtube link), Talk slides (27MB)   

R. Raskar, A. Agrawal, C. Wilson & A. Veeraraghavan, "Glare Aware Photography: 4D Ray Sampling for Reducing Glare Effects of Camera Lenses", ACM Transactions on Graphics (Proceedings of SIGGRAPH) 2008
Low res pdf,    High res pdf,     Video,     SIGGRAPH Talk Slides


A. Veeraraghavan, R. Raskar, A. Agrawal, A. Mohan & J. Tumblin, "Dappled Photography: Mask Enhanced Cameras for Heterodyned Light Fields and Coded Aperture Refocusing", ACM Transactions on Graphics (Proceedings of SIGGRAPH) 2007
Low res pdfHigh res pdf,   Matlab Code and Images,  Talk Slides PPT

R. Raskar, A. Agrawal & J. Tumblin, "Coded Exposure Photography: Motion Deblurring using Fluttered Shutter", ACM Transactions on Graphics (Proceedings of SIGGRAPH) 2006
Matlab Code and Images  Low res pdf  High res pdf  Talk Slides PPT    View Sildes as html

A. Agrawal,  R. Raskar,  Shree K. Nayar &  Y. Li,  "Removing Photography Artifacts using Gradient Projection and Flash-Exposure Sampling",  ACM Transactions on Graphics (Proceedings of  SIGGRAPH) 2005  
Dataset for High Dynamic Range Scene       low res pdf (1.5 MB),    high res pdf (13 MB),     talk slides  (18 MB)


Other Journals

A. Agrawal, Y. Sun, J. Barnwell & R. Raskar, "Vision Guided Robot System for Picking Objects by Casting Shadows", accepted in International Journal of Robotics Research (IJRR), 2009 pdf

A. Agrawal, R. Raskar & R. Chellappa, "Surface Reconstruction from Gradient Fields Via Gradient Transformation", accepted in International Journal of Computer Vision (IJCV), 2009 pdf

A. Agrawal & R. Chellappa,  "Robust Ego-Motion Estimation and 3D Model Refinement using Surface Parallax", IEEE Transactions on Image Processing, Vol. 15, No. 5, May 2006 pdf



Conference

A. Agrawal & R. Raskar, "Optimal Single Image Capture for Motion Deblurring", CVPR 2009  pdf   

A. Agrawal &
Y. Xu, "Coded Exposure Deblurring: Optimized Codes for PSF Estimation and Invertibility", CVPR 2009  pdf  

D. Reddy, A. Agrawal & R. Chellappa, "Enforcing Integrability by Error Correction using L-1 Minimization", CVPR 2009  pdf 

J. Chang, R. Raskar & A. Agrawal, "3D Pose Estimation and Segmentation using Specular Cues", CVPR 2009  pdf   

A. Veeraraghavan, A. Agrawal, R. Raskar,  A. Mohan & J. Tumblin, "Non-Refractive Modulators for Encoding and Capturing Scene Appearance and Depth", CVPR 2008

T. Koh, A. Agrawal, R. Raskar, S. Morgan, N. Miles & B.H Gill, "Detecting and Segmenting Un-occluded Items by Actively Casting Shadows", ACCV 2007 (oral presentation)

A. Agrawal & R. Raskar, "Resolving Objects at Higher Resolution from a Single Motion-Blurred Image", CVPR 2007 (oral presentation)

A. Agrawal, R. Raskar & R. Chellappa, "Edge Suppression by Gradient Field Transformation using Cross-Projection Tensors", CVPR 2006  pdf    Matlab Code

A. Agrawal, R. Raskar & R. Chellappa, "What is the Range of Surface Reconstructions from a Gradient Field?", ECCV 2006  (oral presentation, 4.5% acceptance)     pdf    Matlab code GUI    Matlab Code Mfiles

A. Agrawal, R. Chellappa & R. Raskar, "An Algebraic Approach to Surface Reconstruction from Gradient Fields",  ICCV 2005 pdf   Matlab code

J. Tumblin, A. Agrawal & R. Raskar,  "Why I want a Gradient Camera", CVPR 2005 pdf

A. Agrawal & R. Chellappa, "Fusing Depth and Video using Rao-Blackwellized Particle Filter", First International Conference on Pattern Recognition and Machine Intelligence (PRMI), 2005 (oral presentation)    pdf

A. Agrawal & R. Chellappa, "Moving Object Segmentation and Dynamic Scene Reconstruction using Two Frames", IEEE ICASSP 2005 pdf   student paper contest winner

A. Agrawal & R. Chellappa, "Robust Ego-Motion Estimation and 3D Model Refinement in Scenes with Varying Illumination", IEEE MOTION 2005 (oral presentation pdf

A. Agrawal & R. Chellappa, "Robust Ego-Motion Estimation and 3D Model Refinement using Depth Based Parallax Model", IEEE ICIP, 2004 (oral presentation)  pdf

A. Agrawal & R. Chellappa, "3D Model Refinement using Surface-Parallax", IEEE ICASSP, 2004 pdf

H. Gupta, A. Agrawal, T. Pruthi, C. Shekhar & R. Chellappa, “An Experimental Evaluation of Linear and Kernel-Based Methods for Face Recognition”, IEEE WACV 2002 (oral presentationpdf



Contribution to Books

N. Vaswani, A. Agrawal, Q. Zheng & R. Chellappa, "Moving Object Detection and Compression in IR Sequences",  Chapter 5: Computer Vision beyond the Visible Spectrum, Springer. pdf



Miscellaneous


R. Raskar & A. Agrawal, "Handling Motion in Surveillance using Coded Exposure Camera", IEEE Conference on Technologies for Homeland Security 2007

R. Raskar, J. Tumblin, A. Mohan, A. Agrawal and Y. Li, "Computational Photography", State of Art Report, Eurographics, 2006

A. Agrawal, R. Meth & R. Chellappa “ Hierarchical DEM Refinement using Surface Parallax ”, 24th Army Science Conference, Orlando FL, 2004  

A. Agrawal & C. Shekhar, “Mapping Ground Video to Aerial DEM’s”, Advanced Decision Architectures, Collaborative Technology Alliances Conference 2003  pdf



Patents


     Issued
             J. Tumblin, A. Agrawal & R. Raskar,    "Camera for directly generating a gradient image",    U.S. Patent No. 7,038,185
             R. Raskar, A. Agrawal, S.K. Nayar & Y. Li,    "Method for Estimating Camera Settings Adaptively",    U.S. Patent No. 7,403,707
             R. Raskar, A. Agrawal, S.K. Nayar & Y. Li,    "Method and Apparatus for Acquiring HDR Flash Images",    U.S. Patent No. 7,454,136
             R. Raskar & A. Agrawal,    "Method and Apparatus for Enhancing Flash and Ambient Images",    U.S. Patent No.  7,443,443

     Public
            R. Raskar, A. Agrawal & J. Tumblin, "Method for deblurring images using optimized temporal coding patterns", U.S. Patent Application No.  20070258706
            A. Agrawal & R. Raskar, "Increasing object resolution from a motion blurred image", 
U.S. Patent Application No.  20080062287
            R. Raskar & A. Agrawal, "4D Light Field Cameras",  U.S. Patent Application No.  20080187305