Object Recogntition with Representations Based on Sparsified Gabor Wavelets Used as Local Line Detectors

Authors:
Norbert Krüger
Affiliations:
-
Venue:
CAIP '99 Proceedings of the 8th International Conference on Computer Analysis of Images and Patterns
Year:
1999

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Abstract

We introduce an object recognition system (called ORASSYLL) in which objects are represented as a sparse and spatially organized set of local (bent) line segments. The line segments correspond to binarized Gabor wavelets or banana wavelets, which are bent and stretched Gabor wavelets. These features can be metrically organized, the metric enables an effcient learning of object representations. Learning can be performed autonomously by utilizing motor-controlled feedback. The learned representation are used for fast and effcient localization and discrimination of objects in complex scenes. ORASSYLL has been heavily influenced by an older and well known vision system [4, 9], and has also been influenced by Biederman's comments to this older system [1]. A comparison of ORASSYLL and the older system, including some remarks about the specific role of Gabor wavelets within ORASSYLL, is given at the end of the paper.