Re-ranking Person Re-identification with k-Reciprocal Encoding
- 1 July 2017
- conference paper
- conference paper
- Published by Institute of Electrical and Electronics Engineers (IEEE)
- No. 10636919,p. 3652-3661
- https://doi.org/10.1109/cvpr.2017.389
Abstract
When considering person re-identification (re-ID) as a retrieval process, re-ranking is a critical step to improve its accuracy. Yet in the re-ID community, limited effort has been devoted to re-ranking, especially those fully automatic, unsupervised solutions. In this paper, we propose a k-reciprocal encoding method to re-rank the re-ID results. Our hypothesis is that if a gallery image is similar to the probe in the k-reciprocal nearest neighbors, it is more likely to be a true match. Specifically, given an image, a k-reciprocal feature is calculated by encoding its k-reciprocal nearest neighbors into a single vector, which is used for re-ranking under the Jaccard distance. The final distance is computed as the combination of the original distance and the Jaccard distance. Our re-ranking method does not require any human interaction or any labeled data, so it is applicable to large-scale datasets. Experiments on the large-scale Market-1501, CUHK03, MARS, and PRW datasets confirm the effectiveness of our method.Keywords
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This publication has 28 references indexed in Scilit:
- Multi-Scale Triplet CNN for Person Re-IdentificationPublished by Association for Computing Machinery (ACM) ,2016
- Sparse Contextual Activation for Efficient Visual Re-RankingIEEE Transactions on Image Processing, 2016
- Kernelized Saliency-Based Person Re-Identification Through Multiple Metric LearningIEEE Transactions on Image Processing, 2015
- Cross-Domain Person Reidentification Using Domain Adaptation Ranking SVMsIEEE Transactions on Image Processing, 2015
- DeepReID: Deep Filter Pairing Neural Network for Person Re-identificationPublished by Institute of Electrical and Electronics Engineers (IEEE) ,2014
- Person re-identification with content and context re-rankingMultimedia Tools and Applications, 2014
- Re-ranking for person re-identificationPublished by Institute of Electrical and Electronics Engineers (IEEE) ,2013
- Domain Transfer Support Vector Ranking for Person Re-identification without Target Camera Label InformationPublished by Institute of Electrical and Electronics Engineers (IEEE) ,2013
- Common-near-neighbor analysis for person re-identificationPublished by Institute of Electrical and Electronics Engineers (IEEE) ,2012
- Hello neighbor: Accurate object retrieval with k-reciprocal nearest neighborsPublished by Institute of Electrical and Electronics Engineers (IEEE) ,2011