[Colloquium] Research at TTIC: Ayan Chakrabarti, TTIC

[Dawn Ellis]

When:     Friday, January 16, 2015 at noon

Where:    TTIC, 6045 S Kenwood Avenue, 5th Floor, Room 526

Who:       Ayan Chakrabarti, TTIC

Title:       Low-level Vision by Consensus in a Spatial Hierarchy of Regions

Abstract:

I will describe a new computational framework for the estimation of
physical scene values---like depth, surface normals, optical flow,
etc.---from visual measurements, which can reason with local models (like
planar depth, smooth shape, affine motion, etc.) that are expected to hold
piecewise across the scene. Formulated as the minimization of a
well-defined cost function, inference in this framework can be carried out
very efficiently by a network of nodes where (a) each node reasons about
the validity of the local model in one of a dense, overlapping set of
regions that redundantly cover the image plane; and (b) all nodes
collaborate to produce a globally consistent scene map. This architecture
lends itself naturally to parallelization across multi-core and streaming
architectures, and when evaluated on the application of stereo estimation,
is found to yield more accurate estimates than comparable variational and
MRF-based inference methods.



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Research at TTIC Seminar Series

TTIC is hosting a weekly seminar series presenting the research currently
underway at the Institute. Every week a different TTIC faculty member will
present their research.  The lectures are intended both for students
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Speaker details can be found at: http://www.ttic.edu/tticseminar.php.

For additional questions, please contact David McAllester at
mcallester at ttic.edu

-- 
*Dawn Ellis*
Administrative Coordinator,
Bookkeeper
773-834-1757
dellis at ttic.edu

TTIC
6045 S. Kenwood Ave.
Chicago, IL. 60637
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