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HiPot 2012 : ECCV Workshop on Higher-Order Models and Global Constraints in Computer Vision


When Oct 13, 2012 - Oct 13, 2012
Where Firenze, Italy
Submission Deadline Jul 5, 2012
Notification Due Jul 25, 2012
Final Version Due Aug 1, 2012

Call For Papers

HiPot: ECCV 2012 Workshop on Higher-Order Models and Global Constraints in Computer Vision
Firenze, Italy, October 13, 2012

Important Dates

Paper submission Deadline July 5
Acceptance Notification July 25
Camera Ready Due August 1
Workshop Date October 13

Many tasks in computer vision, including low-level ones such as image segmentation, stereo estimation, as well as high-level ones such as object recognition, scene understanding, have been modelled as discrete labelling problems. Furthermore, discrete optimization has emerged as an indispensable tool to solve these problems over the last two decades. It is now a routine process to write an explicit energy function, understand the Bayesian priors it incorporates, and then depending on its properties, perform exact or approximate inference.

Initially, one of the popular ways to model a labelling problem has been in terms of an energy function comprising of unary and pairwise clique potentials. This assumption severely restricts the representational power of these models as they are unable to capture the rich statistics of natural images. More recently, a second wave of success can be attributed to the incorporation of higher-order terms that have the ability to encode significantly more sophisticated priors and structural dependencies between variables – e.g., second-order smoothness priors in stereo, priors on natural image statistics for de-noising, robust smoothness priors for object labelling, co-occurrence priors for object category segmentation, connectivity and bounding-box priors for image segmentation.

The goal of this workshop is to bring together researchers working on different aspects of this problem (modelling, inference and learning) and discuss various techniques, common solutions, open questions and future pursuits, such as:


(a) What other forms of higher order potentials can be used (e.g. grammar-based)?
(b) Which image priors should we aim to model?


(c) How feasible is it to extend the class of functions exactly solvable?
(d) Given the "satisfactory" results of many approximate algorithms, what more can we gain from exact solutions?
(e) Can we find theoretical upper bound for the approximate solutions?
(f) How do we compare the various inference methods?


(g) How do we learn with higher-order potentials and global constraints?
(h) Should we explore piece-wise or distributed or coarse-to-fine learning?

Invited Speakers

Endre Boros, Rutgers University
Yann LeCun, New York University
More speakers (awaiting confirmation)

Call for Papers

The workshop invites high-quality submissions that will be presented in an oral or a poster form. Papers presenting theoretical or application-driven or (preferably) both contributions are suitable. Topics of interest include, but are not limited to:

Forms of higher order potentials and global constraints
Learning in models with these potentials/constraints
Inference methods
Efficiency, tractability, approximation bounds and comparison of inference methods

In addition to the oral and poster presentations, the program will include invited talks and an open session involving all the participants. Papers must be in PDF format and must not exceed 10 pages (ECCV format). All submissions are subject to a double-blind review process by the program committee.


Karteek Alahari INRIA-WILLOW / ENS

Dhruv Batra TTI Chicago

Nikos Paragios ECP / INRIA-GALEN

Srikumar Ramalingam MERL

Rich Zemel University of Toronto

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