Graph spectral approach for learning view structure

Research output: Contribution to journalArticlepeer-review

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Publication details

Journal16TH INTERNATIONAL CONFERENCE ON PATTERN RECOGNITION, VOL III, PROCEEDINGS
DatePublished - 2002
Number of pages4
Pages (from-to)785-788
Original languageEnglish

Abstract

In this paper we explore how to represent object view-structure by embedding the neighbourhood graphs of feature points in a pattern-space. We adopt a graph-spectral approach. We use the leading eigenvectors of the graph adjacency matrix to define clusters of nodes. For each cluster we compute vectors of cluster properties. We embed these vectors in a pattern-space using two contrasting approaches. The first of these involves performing principal components analysis on the covariance matrix for the spectral pattern vectors. The second approach involves performing multidimensional scaling on the L2 norm for pairs of pattern vectors. We demonstrate the both methods result in well-structured view spaces for graph-data extracted from 2D views of 3D objects.

    Research areas

  • OBJECT RECOGNITION, MODELS

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