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Title:
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Exploiting feature representations through similarity learning, post-ranking and ranking aggregation for person re-identification
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Author:
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Silveira Jacques Junior, Julio Cezar; Barò Solè, Xavier; Escalera Guerrero, Sergio
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Other authors:
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Universitat Autònoma de Barcelona; Universitat de Barcelona; Universitat Oberta de Catalunya (UOC) |
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Abstract:
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Person re-identification has received special attention by the human analysis community in the last few years. To address the challenges in this field, many researchers have proposed different strategies, which basically exploit either cross-view invariant features or cross-view robust metrics. In this work, we propose to exploit a post-ranking approach and combine different feature representations through ranking aggregation. Spatial information, which potentially benefits the person matching, is represented using a 2D body model, from which color and texture information are extracted and combined. We also consider background/foreground information, automatically extracted via Deep Decompositional Network, and the usage of Convolutional Neural Network (CNN) features. To describe the matching between images we use the polynomial feature map, also taking into account local and global information. The Discriminant Context Information Analysis based post-ranking approach is used to improve initial ranking lists. Finally, the Stuart ranking aggregation method is employed to combine complementary ranking lists obtained from different feature representations. Experimental results demonstrated that we improve the state-of-the-art on VIPeR and PRID450s datasets, achieving 67.21% and 75.64% on top-1 rank recognition rate, respectively, as well as obtaining competitive results on CUHK01 dataset. |
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Subject(s):
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-person re-identification
-similarity learning
-feature fusion
-post-ranking
-ranking aggregation
-re-identificació de persones
-aprenentatge de similituds
-fusió de característiques
-post-classificació
-agregació de classificació
-re-identificación de personas
-aprendizaje de similitudes
-fusión de características
-post-ranking
-agregación de clasificación
-Person identification
-Identificació de persones
-Identificación de personas |
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Rights:
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(c) Author/s & (c) Journal
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Document type:
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Article
Article - Submitted version |
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Published by:
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Image and Vision Computing
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Share:
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