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National Repository of Grey Literature 1 records found  Search took 0.01 seconds. 
Vehicle Re-Identification Using Vision Transformers
 Jelínek, Zdeněk ; Hradiš, Michal (referee) ; Špaňhel, Jakub (advisor)
The main objective of this thesis was to investigate the potential of vision transformers in vehicle re-identification. Convolutional neural networks have so far dominated this area of computer vision. In total, two models have been tested - TransReID and CMT. TransReID is a model based purely on vision transformers and was created specifically for vehicle re-identification. The main part of the experiments with this model was devoted to the use of key points on the vehicle. With proper extraction of the regions around the key points and the use of post-processing, I achieved state-of-the-art results. The CMT model is a combination of convolutional networks and transformers that was not designed for vehicle re-identification. I modified the model and conducted extensive experiments with it to obtain the best configuration for vehicle re-identification. I evaluated the models on the standard datasets VeRi-776, VehicleID, CityFlowV2-ReID and CarsReId74k and compared with state-of-the-art models. With the CMT model, I achieved the best result of 0.860 on the mAP metric on the VeRi-776 dataset and the best result of 97.6% on the Rank5 metric on the VehicleID dataset.
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