Title Person re-identification algorithms in video analysis
Translation of Title Asmens pakartotinio identifikavimo algoritmai vaizdo analizėje.
Authors Šakinis, Jokūbas
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Pages 57
Keywords [eng] artificial intelligence ; person re-identification ; person re-id ; sequence encoder ; TSCL
Abstract [eng] In this research two different deep-learning person re-identification models are presented with their implementation, trained on three benchmark datasets: IUST_PersonReID, Market-1501, MARS. Market-1501 and MARS datasets were split according to the official data split for results to be comparable to existing research and an unofficial custom cross-camera split without junk to display best-case scenario how models would perform using clean data. First implementation trained on IUST_PersonReID dataset uses a GooGleNet Inception v1 backbone with weighted contrastive loss consisting of Gaussian-scored positive pair, margin-based negative pairs, identity-agnostic attention. Second implementation was trained on Market-1501 and MARS datasets separately producing two models using a DINOv2 feature extraction backbone with a combined loss consisting of AMSoftmax, circle loss, batch-hard triplet loss and a novel suggested temporal stripe consistency loss consisting of intra-frame and inter-frame components making sure horizontal stripe features are consistent across multiple frames across the tracklet. In this paper the evaluation results are reported as CMC curves, Rank-1 curve which show how Rank 1 is influenced by input/gallery sequence lengths, Rank-1/mAP tables without re-ranking to display out-of-the-box performance, with re-ranking to show optimal performance and lastly actual queries to showcase where model excels and struggles with predictions.
Dissertation Institution Kauno technologijos universitetas.
Type Master thesis
Language English
Publication date 2026