Graph-embedded discriminative SPD autoencoder for image set classification

Weixiao Dai

doi:10.1016/j.patcog.2026.114922

Graph-embedded discriminative SPD autoencoder for image set classification

2026-09-18

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DOI：10.1016/j.patcog.2026.114922

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Abstract

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• Incorporation of graph embedding into SPDNet layers to preserve manifold geometry. • Proposal of a discriminative class center contrastive loss on SPD manifolds. • Design of an SPD autoencoder with two-stage transformations and joint optimization.

Keywords:

SPD manifold

Autoencoder

Graph embedding

Class-center contrastive

Graph-embedded discriminative SPD autoencoder for image set classification

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