PASCAL - Pattern Analysis, Statistical Modelling and Computational Learning

StyP-Boost: A Bilinear Boosting Algorithm for Learning Style-Parameterized Classifiers
Jonathan Warrell, Simon Prince and Philip Torr
In: BMVC 2010, 31 Aug - 3 Sep 2010, Aberystwyth.

Abstract

We introduce a novel bilinear boosting algorithm, which extends the multi-class boosting framework of JointBoost to optimize a bilinear objective function. This allows style parameters to be introduced to aid classification, where style is any factor which the classes vary with systematically, modeled by a vector quantity. The algorithm allows learning to take place across different styles. We apply this Style Parameterized Boosting framework (StyP-Boost) to two object class segmentation tasks: road surface segmentation and general scene parsing. In the former the style parameters represent global surface appearance, and in the latter the probability of belonging to a scene-class. We show how our framework improves on 1) learning without style, and 2) learning independent classifiers within each style. Further, we achieve state-of-the-art results on the Corel database for scene parsing.

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EPrint Type:Conference or Workshop Item (Oral)
Project Keyword:Project Keyword UNSPECIFIED
Subjects:Machine Vision
ID Code:7027
Deposited By:Sunando Sengupta
Deposited On:28 November 2010