Amit Agrawal
Senior Research Scientist
Amazon-Lab126

PhD, 2006
Center for Automation Research
Department of Electrical and Computer Engineering
University of Maryland
Advisor: Prof. Rama Chellappa


Office:    1120 Enterprise Way, Sunnyvale, CA 94089
Email:     amitkagrawal at gmail dot com
 


                                


                               


Talk at Nokia Research on Computational Cameras

Matlab Code available for Underwater Calibration/Forward Projection

ECCV 2012 Tutorial on Multi-View Geometry & Computational Photography using Non-Classical Cameras

Procams 2012 Keynote

CVPR 2010 tutorial on Computational Imaging

Coded Aperture Photography

CMU VASC Seminar: Coding and Modulation in Cameras: Computational Photography beyond Photo Manipulation

ICCV 2007 Course on Gradient Domain Manipulation Techniques in Vision and Graphics

Lytro vs Mask based Light Field Camera

Light Field Datasets


SIGGRAPH 2008 Server Crash


Selected Projects





Extrinsic Camera Calibration Without A Direct View Using A Spherical Mirror
Amit Agrawal
ICCV 2013



Towards Motion-Aware Light Field Video For Dynamic Scenes
Salil Tambe, Ashok Veeraraghavan and Amit Agrawal
ICCV 2013




Single Image Calibration of Multi-Axial Imaging Systems
Amit Agrawal and Srikumar Ramalingam
CVPR 2013
pdf




Motion-Aware Structured Light Using Spatio-Temporal Decodable Patterns
Yuichi Taguchi, Amit Agrawal and Oncel Tuzel
ECCV 2012
pdfVideo


A Theory of Multi-Layer Flat Refractive Geometry
Amit Agrawal, Srikumar Ramalingam, Yuichi Taguchi and Visesh Chari
CVPR 2012 (oral presentation)
pdfSupplementary pdf, Talk Slides (pdf)
Matlab Code




Convex Bricks: A New Primitive for Visual Hull Modeling and Reconstruction
Visesh Chari, Amit Agrawal, Yuichi Taguchi and Srikumar Ramalingam
ICRA 2012 (oral presentation)
pdf





Beyond Alhazen's Problem: Analytical Projection Model for Non-Central Catadioptric Cameras with Quadric Mirrors
Amit Agrawal, Yuichi Taguchi and Srikumar Ramalingam
CVPR 2011 (oral presentation)
pdf, Supplementary pdfTalk Slides, Youtube Video




Structured Light 3D Scanning Under Global Illumination
Mohit Gupta, Amit Agrawal, Ashok Veeraraghavan and Srinivas Narasimhan
CVPR 2011
pdf, ppt




Axial-Cones: Modeling Spherical Catadioptric Cameras for Wide-Angle Light Field Rendering
Yuichi Taguchi, Amit Agrawal, Ashok Veeraraghavan, Srikumar Ramalingam and Ramesh Raskar
SIGGRAPH ASIA 2010
pdf, Talk Slides, Video, Youtube Video




Analytical Forward Projection for Axial Non-Central  Dioptric and Catadioptric Cameras
Amit Agrawal, Yuichi Taguchi and Srikumar Ramalingam
ECCV 2010 (oral presentation)
pdf, Talk Slides



Flexible Voxels for Motion-Aware Videography
Mohit Gupta, Amit Agrawal, Ashok Veeraraghavan and Srinivas Narasimhan
ECCV 2010
pdf



Image Invariants for Smooth Reflective Surfaces
Aswin Sankarnarayanan, Ashok Veeraraghavan, Oncel Tuzel and Amit Agrawal
ECCV 2010
pdf

Optimal Coded Sampling for Temporal Super-Resolution
Amit Agrawal, Mohit Gupta, Ashok Veeraraghavan and Srinivas Narasimhan
CVPR 2010
pdf 






Axial Light Field for Curved Mirrors: Reflect Your Perspective, Widen Your View
Yuichi Taguchi, Amit Agrawal, Srikumar Ramalingam and Ashok Veeraraghavan
CVPR 2010 (oral presentation)
pdf,
Talk Slides, Talk Video @videolectures








Specular Surface Reconstruction from Sparse Reflection Correspondences
Aswin Sankarnarayanan, Ashok Veeraraghavan, Oncel Tuzel and Amit Agrawal
CVPR 2010
pdf




Reinterpretable Imager: Towards Variable Post Capture Space, Angle & Time Resolution in Photography
Amit Agrawal, Ashok Veeraraghavan and Ramesh Raskar
Eurographics 2010
(oral presentation)
Low res pdf, High res pdf, Video (avi), Youtube Video, Slides





Invertible Motion Blur in Video
Amit Agrawal, Yi Xu and Ramesh Raskar
ACM SIGGRAPH 2009
pdf, Video (Quicktime), Youtube Video, Talk Slides (ppt)



Optimal Single Image Capture for Motion Deblurring
Amit Agrawal and Ramesh Raskar
CVPR 2009
pdf




Coded Exposure Deblurring: Optimized Codes for PSF Estimation and Invertibility
Amit Agrawal and Yi Xu
CVPR 2009
pdf



Enforcing Integrability by Error Correction using L-1 Minimization
Dikpal Reddy, Amit Agrawal and Rama Chellappa
CVPR 2009
pdf



3D Pose Estimation and Segmentation using Specular Cues
Ju Yong Chang, Ramesh Raskar and Amit Agrawal
CVPR 2009
pdf


Shield Fields: Modeling and Capturing 3D Occluders
Douglas Lanman, Ramesh Raskar, Amit Agrawal and Gabriel Taubin
SIGGRAPH ASIA 2008
Low res pdf (1MB), High res pdf (13MB), Video (25MB), Video (youtube link), Talk slides (27MB)   





Glare Aware Photography: 4D Ray Sampling for Reducing Glare Effects of Camera Lenses
Ramesh Raskar, Amit Agrawal, Cyrus Wilson and Ashok Veeraraghavan
ACM SIGGRAPH 2008
Low res pdf (4MB), High res pdf (27MB), VideoYoutube Video,
SIGGRAPH Talk Slides


Non-Refractive Modulators for Encoding and Capturing Scene Appearance and Depth
Ashok Veeraraghavan, Amit Agrawal, Ramesh Raskar, Ankit Mohan and Jack Tumblin
CVPR 2008


Detecting and Segmenting Un-occluded Items by Actively Casting Shadows
Tze Koh, Amit Agrawal, Ramesh Raskar, Steve Morgan, Nicholas Miles and Barrie Hayes-Gill
ACCV 2007 (oral presentation)
pdf
Dappled Photography: Mask Enhanced Cameras for Heterodyned Light Fields and Coded Aperture Refocusing
Ashok Veeraraghavan, Ramesh Raskar, Amit Agrawal, Ankit Mohan and Jack Tumblin
ACM SIGGRAPH 2007
Low res pdf, High res pdf
SIGGRAPH Talk Slides PPT
Coded Aperture Photography



Resolving Objects at Higher Resolution from a Single Motion-Blurred Image
Amit Agrawal and Ramesh Raskar
CVPR 2007 (oral presentation)
pdf, Talk Slides PPT







 
Coded Exposure Photography: Motion Deblurring using Fluttered Shutter
Ramesh Raskar, Amit Agrawal and Jack Tumblin
ACM SIGGRAPH 2006
Low res pdf, High res pdf
Talk Slides PPT, View Slides as html
Flutter Shutter Video Camera





Edge Suppression by Gradient Field Transformation using Cross-Projection Tensors 
Amit Agrawal, Ramesh Raskar and Rama Chellappa
CVPR 2006
pdf   Matlab Code


What is the Range of Surface Reconstructions from a Gradient Field?
Amit Agrawal, Ramesh Raskar and Rama Chellappa
ECCV 2006 (oral presentation)
pdf    Matlab Code GUI Matlab Code Mfiles




Removing Photography Artifacts using Gradient Projection and Flash-Exposure Sampling
Amit Agrawal, Ramesh Raskar, Shree K. Nayar and Yuanzhen Li
ACM SIGGRAPH 2005
low res pdf    high res pdf   talk slides
High Dynamic Range Image Dataset










An Algebraic Approach to Surface Reconstruction from Gradient Fields
Amit Agrawal, Rama Chellappa and Ramesh Raskar
ICCV 2005
pdf    Matlab Code














Why I Want A Gradient Camera
Jack Tumblin, Amit Agrawal and Ramesh Raskar
CVPR 2005
pdf










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