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Relation Preserving Triplet Mining for Stabilising the Triplet Loss in Re-identification Systems by Ghosh, Adhiraj; Shanmugalingam, Kuruparan; Lin, Wen-Yan is a scholarly article available to read on EtoBox.

What is Relation Preserving Triplet Mining for Stabilising the Triplet Loss in Re-identification Systems about?

Object appearances change dramatically with pose variations. This creates a challenge for embedding schemes that seek to map instances with the same object ID to locations that are as close as possible. This issue becomes significantly heightened in complex computer vision tasks such as re-identification(reID). In this paper, we suggest that these dramatic appearance changes are indications that an object ID is composed of multiple natural groups, and it is counterproductive to forcefully map instances from different groups to a common location. This leads us to introduce Relation Preserving Triplet Mining (RPTM), a feature-matching guided triplet mining scheme, that ensures that triplets will respect the natural subgroupings within an object ID. We use this triplet mining mechanism to establish a pose-aware, well-conditioned triplet loss by implicitly enforcing view consistency. This allows a single network to be trained with fixed parameters across datasets while providing state-of-the-art results. Code is available at https://github.com/adhirajghosh/RPTM_reid.

Author

Ghosh, Adhiraj; Shanmugalingam, Kuruparan; Lin, Wen-Yan

Published

2021

Language

EN