Person re-identification is the problem of recognizing people across different images or videos with non-overlapping views. Although a significant progress has been made in person re-identification over the last decade, it remains a challenging task because the appearances of people can seem extremely different across diverse camera viewpoints and person poses. In this paper, we propose a novel framework for person re-identification by analyzing camera viewpoints and person poses called pose-aware multi-shot matching. It robustly estimates individual poses and efficiently performs multi-shot matching based on the pose information. The experimental results obtained by using public person re-identification data sets show that the proposed methods outperform the current state-of-the-art methods, and are promising for accomplishing person re-identification under diverse viewpoints and pose variances.
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http://dx.doi.org/10.1109/TIP.2018.2815840 | DOI Listing |
J Migr Health
December 2024
INTERSOS HELLAS, Thessaloniki, Greece.
Background: The Russian military invasion of Ukraine has sparked Europe's largest forced displacement since World War II, bringing about significant health vulnerabilities for migrants and refugees. European health information systems lack comprehensive data coverage, especially in underrepresented migration stages like transit. This study aims to address this gap by analyzing data from INTERSOS clinics at the Moldovan and Polish borders with Ukraine to identify the common health conditions prompting people to seek healthcare services during transit.
View Article and Find Full Text PDFJ Chromatogr A
January 2025
Centro de Metabolómica y Bioanálisis (CEMBIO), Facultad de Farmacia, Universidad San Pablo-CEU, CEU Universities, Urbanización Montepríncipe, Boadilla del Monte 28660, España. Electronic address:
Mammalian hibernation offers a unique model for exploring neuroprotective mechanisms relevant to neurodegenerative diseases. In this study, we employed untargeted lipidomics with iterative tandem mass spectrometry (MS/MS) to profile the brain lipidome of Syrian hamsters across different hibernation stages: late torpor, arousal, and euthermia (control). Previously, a lipid species identified as methyl-PA(16:0/0:0) showed a significant increase during torpor, but its precise structure was unresolved due to technological constraints.
View Article and Find Full Text PDFSensors (Basel)
January 2025
College of Information Science and Electronic Engineering, Zhejiang University, Hangzhou 310027, China.
Domain-generalizable re-identification (DG Re-ID) aims to train a model on one or more source domains and evaluate its performance on unseen target domains, a task that has attracted growing attention due to its practical relevance. While numerous methods have been proposed, most rely on discriminative or contrastive learning frameworks to learn generalizable feature representations. However, these approaches often fail to mitigate shortcut learning, leading to suboptimal performance.
View Article and Find Full Text PDFSensors (Basel)
January 2025
School of Information and Control Engineering, China University of Mining and Technology, Xuzhou 221116, China.
Aiming at the problems caused by a lack of feature matching due to occlusion and fixed model parameters in cross-domain person re-identification, a method based on multi-branch pose-guided occlusion generation is proposed. This method can effectively improve the accuracy of person matching and enable identity matching even when pedestrian features are misaligned. Firstly, a novel pose-guided occlusion generation module is designed to enhance the model's ability to extract discriminative features from non-occluded areas.
View Article and Find Full Text PDFSensors (Basel)
January 2025
Department of Informatics-Science and Engineering (DISI), University of Bologna, 40126 Bologna, Italy.
Person re-identification (re-id) is a critical computer vision task aimed at identifying individuals across multiple non-overlapping cameras, with wide-ranging applications in intelligent surveillance systems. Despite recent advances, the domain gap-performance degradation when models encounter unseen datasets-remains a critical challenge. CLIP-based models, leveraging multimodal pre-training, offer potential for mitigating this issue by aligning visual and textual representations.
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