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Deep neural network learning methods with limited datasets
Németh, Filip ; Vičar, Tomáš (referee) ; Jakubíček, Roman (advisor)
The master thesis aims to investigate the effectiveness of deep neural networks in image processing with limited training data. As part of the work, the effects of various techniques and approaches on the learning of these networks were analyzed, including transfer learning, data augmentation, and neural style transfer method. Experimental results suggest that transfer learning using pre-trained weights from large datasets such as ImageNet is effective in improving results on limited data, achieving high F1-scores. The use of different forms of data augmentation can lead to variable results, where it provides different advantages and disadvantages that have a significant impact on the success and efficiency of the models. In general, the method using a neural style transfer network does not yield significant improvements and proved less effective for dataset with a large diversity of perspectives and geometric features.
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Deep Learning for 3D Image Analysis
Hlavoň, David ; Herout, Adam (referee) ; Španěl, Michal (advisor)
This work deals with usage of fully convolutional neural network for segmentation of bones in CT scans. Typical issue is limited size of dataset while training on medical images. Experiments show that training on patches gives score of segmentation 95,1%. Training on whole images gives score 30% less than training on patches. As metric F-measure was used. BVLC Caffe Framework was used for training neural network.
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Deep Learning for 3D Image Analysis
Hlavoň, David ; Herout, Adam (referee) ; Španěl, Michal (advisor)
This work deals with usage of fully convolutional neural network for segmentation of bones in CT scans. Typical issue is limited size of dataset while training on medical images. Experiments show that training on patches gives score of segmentation 95,1%. Training on whole images gives score 30% less than training on patches. As metric F-measure was used. BVLC Caffe Framework was used for training neural network.
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