PASCAL - Pattern Analysis, Statistical Modelling and Computational Learning

Retrieving Objects From Videos Based on Affine Regions
Vittorio Ferrari, Tinne Tuytelaars and Luc Van Gool
In: EUSIPCO, September 2004, Vienna, Austria.

Abstract

We present a method to (semi-)automatically annotate video material. More precisely, we focus on recognizing specific objects and scenes in keyframes. Objects are learnt simply by having the user delineate them in one (or a few) images. The basic building block to achieve this goal consists of affine invariant regions. These are local image patches that adapt their shape based on the image content so as to be invariant to viewpoint changes. Instead of simply matching the regions and counting the number of matches, we propose to gather more evidence about the presence of the object by exploring the image around the initial matches. This boosts the performance, especially under difficult, real-world imaging conditions. Experimental results on news broadcast data demonstrate the viability of the approach.

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EPrint Type:Conference or Workshop Item (Paper)
Project Keyword:Project Keyword UNSPECIFIED
Subjects:Machine Vision
ID Code:1379
Deposited By:Vittorio Ferrari
Deposited On:28 November 2005