Research Interests
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| Computer Vision,
Image/Signal Processing,
Computational Photography |
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Education
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Ph.D., Electrical and Computer Engineering
University of Maryland,
College Park, MD USA
Thesis: Scene Analysis under Variable Illumination using Gradient
Domain Methods
Advisor: Prof.
Rama
Chellappa
Major: Communications and Signal Processing
Minor: Computer Engineering
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Jan 2004 - May 2006
GPA: 3.92/4.0
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M.S., Electrical and Computer
Engineering
University of Maryland,
College Park, MD USA
Major: Communications and Signal Processing
Minor: Computer Engineering
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Aug 2001 - Dec
2003
GPA: 3.92/4.0
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B.Tech., Electrical Engineering
Indian Institute of
Technology (IIT), Kanpur
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July
1996 - May 2000
GPA: 9.2/10.0
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| Academic
& Professional Experience |
Research
Scientist, Mitsubishi Electric Research Labs (MERL), Cambridge, MA
Visiting Scientist, Mitsubishi Electric Research Labs (MERL),
Cambridge, MA
Research
Intern, Mitsubishi Electric Research Labs (MERL), Cambridge, MA
Mentor: Dr. Ramesh Raskar
Graduate Research
Assistant, UMIACS, University of Maryland
Advisor: Prof. Rama Chellappa
Graduate Teaching
Assistant, ECE Department, University of Maryland
DSP Software
Engineer, Hughes Software Systems (HSS),
India
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May 2008 -
Present
May
2006 - May 2008
July 2004 - Feb 2005
Aug 2001 - May 2006
Aug 2001 - Dec 2001
Jun 2000 - Aug 2001
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SIGGRAPH
Publications
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D.
Lanman, R. Raskar, A. Agrawal & G. Taubin, "Shield Fields:
Modeling and Capturing 3D Occluders",
SIGGRAPH Asia 2008
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
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), Vol. 26, Issue 3, July 2007
R. Raskar, A. Agrawal & J. Tumblin, "Coded
Exposure Photography:
Motion Deblurring using Fluttered Shutter", ACM Transactions on
Graphics (Proceedings of SIGGRAPH), Vol. 25, Issue 3, July 2006
A. Agrawal, R. Raskar, S.K. Nayar & Y. Li, "Removing
Photography
Artifacts using Gradient Projection and Flash-Exposure Sampling",
ACM
Transactions on Graphics (Proceedings of SIGGRAPH), Vol. 24, Issue 3,
July 2005
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| Other
Journal Publications |
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
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Selected Conference Publications
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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. Gills, "Detecting
and Segmenting
Un-occluded Items by Actively Casting
Shadows", Asian Conference on Computer Vision (ACCV) 2007 (oral
presentation)
A. Agrawal & R.
Raskar, " Resolving
Objects at Higher Resolution
from a Single Motion-Blurred Image", IEEE Conference on Computer
Vision
and Pattern Recognition (CVPR) 2007 (oral presentation)
A. Agrawal, R. Raskar & R. Chellappa, " Edge
Suppression by Gradient
Field Transformation using Cross-Projection Tensors", IEEE
Conference
on Computer Vision and Pattern Recognition (CVPR) 2006
A. Agrawal, R. Raskar & R. Chellappa , " What
is the Range of
Surface Reconstructions from a Gradient Field?", European
Conference on
Computer Vision (ECCV) 2006 (oral presentation)
A. Agrawal, R. Chellappa & R. Raskar, " An
Algebraic Approach to
Surface Reconstruction from Gradient Fields", IEEE International
Conference on Computer Vision (ICCV) 2005
J. Tumblin, A. Agrawal & R. Raskar, " Why I
want a Gradient Camera",
IEEE Conference on Computer Vision and Pattern Recognition (CVPR) 2005
A. Agrawal & R. Chellappa, "Moving Object Segmentation and Dynamic
Scene Reconstruction using Two Frames", IEEE ICASSP 2005. Winner of
student paper contest (IMDSP category)
A. Agrawal & R. Chellappa, "Fusing Depth and Video using
Rao-Blackwellized Particle Filter", First International Conference on
Pattern Recognition and Machine Intelligence (PRMI), 2005
A. Agrawal & R. Chellappa, "Robust Ego-Motion Estimation and 3D
Model Refinement in Scenes with Varying Illumination", IEEE MOTION 2005
A. Agrawal & R. Chellappa, "Robust Ego-Motion Estimation and 3D
Model Refinement using Depth Based Parallax Model", IEEE ICIP, 2004
A. Agrawal & R. Chellappa, "3D Model Refinement using
Surface-Parallax", IEEE ICASSP, 2004
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| 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
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Other Miscellaneous Publications
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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
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Patents
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J. Tumblin, A.
Agrawal & R. Raskar, "Camera for directly generating
a gradient image", U.S. Patent No. 7,038,185
A. Agrawal & R. Raskar, "Increasing Object Resolutions from a
Motion-Blurred Image", U.S. Patent Application No. 20080062287
R. Raskar & A. Agrawal, "Method and
Apparatus
for Enhancing Flash
and Ambient Images", U.S. Patent Application No. 20070024742
R. Raskar, A. Agrawal, S.K. Nayar & Y. Li,
"Method and
Apparatus
for Acquiring HDR Flash Images", U.S. Patent Application No. 20070025717
R. Raskar, A. Agrawal, S.K. Nayar & Y. Li,
"Method for Estimating
Camera Settings Adaptively", U.S. Patent Application No. 20070025720
R.
Raskar, A. Agrawal & J. Tumblin, "Method for deblurring images
using optimized temporal coding patterns", U.S. Patent Application
No. 20070258706
4+ patent applications pending
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| Courses |
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Invited Talks
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Coding and Modulation in
Cameras: Computational Photography beyond Photo Manipulations, CMU VASC Seminar (Host:
Srinivas Narasimhan), Mar 2008
A Framework for Surface Reconstruction from Gradient Fields, Computer
Graphics Group, MIT, Apr 2007
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Exhibits, Demos & Tech Shows
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Depth Edges in
Real-Time
using Multi-flash Camera, IEEE CVPR 2005
Camera Non-photo, Collision Senses, Cambridge, MA, 2004
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| Professional
Activities |
Reviewer
IEEE CVPR 2007, 2008
IEEE ICCV 2007
ACCV 2007
IEEE Transactions on Image Processing (2005-2007)
IEEE Transactions on Pattern Analysis and Machine Intelligence (PAMI)
(2006-2007)
Eurographics (2005)
SIGGRAPH 2007, 2008
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Honors & Awards
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ICASSP
2005 Student
Paper Contest Winner (IMDSP category)
Award for Excellence in PES project at Hughes Software Systems, India
Best trainee project award at Hughes Software Systems, India
First prize in Inter-Collegiate Hardware Design Contest at Techkriti
2000 at IIT Kanpur
All India Rank 272 in Joint Entrance Examination-1996 for IIT among
~100,000 participants
Silver medal in National Talent Search Contest in Mathematics (1994 and
1995), Science (1995) & General Knowledge (1993 and 1995)
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