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Self-Supervised Learning for Recognition of Hand Poses in Image
Makaiová, Lucia ; Kocur, Viktor (referee) ; Herout, Adam (advisor)
This work focuses on using self-supervised learning for the task of hand poses recognition in image. I have used contrastive method of self-supervised learning and optimized the solution iteratively, using techniques such as early stopping, triplet mining, optimization of hyperparameters or experimenting with various model architectures. The method was implemented with Pytorch framework and Tensorboard was used for data processing and visualization. I have trained the first model using a supervised method, to obtain reference values. I have successfully matched this reference result by training a self-supervised model on Handz dataset and achieving 83% accuracy. The created solution provides findings, which can be applied to similar problems, such as recognition of sport poses. The main contribution of this work is the discovery, that self-supervised methods are particularly effective when using a labeled dataset for downstream task with just a small amount of samples, which in addition have uneven distribution of samples for individual classes. Based on these findings, it is possible to create a method for self-supervised learning for recognition of sport poses or further optimize existing solution for hand poses.
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