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Národní úložiště šedé literatury Nalezeno 3 záznamů.  Hledání trvalo 0.00 vteřin. 
Generative Models for 3D Shape Completion
 Zdravecký, Peter ; Španěl, Michal (oponent) ; Kubík, Tibor (vedoucí práce)
In many real-world scenarios, scanned 3D models contain missing parts due to occlusion, scanning errors, or the incomplete nature of the data itself. The goal of this work is to create an automated process for 3D shape completion using a supervised deep learning-based method. The proposed solution is based on the prior work of DiffComplete, which uses a diffusion-based model operating over distance field representation and handles the task as a generative problem. The results showed a high capability of this model with an 81.6 IoU metric on the custom-prepared test set of furniture objects. The model also demonstrates strong generalization capabilities on shapes that are out of the training distribution (average 70.9 IoU metric). Apart from more detailed data-centric experiments, this work further extends current state-of-the-art in two ways. Firstly, it addresses the most crucial shortcoming, expensive computation, by processing the input in a low-resolution domain. Secondly, it utilizes user input (Region of Interest), which gives the user more control over generation in ambiguous scenarios.
Úplný záznam
Comic Images Super-Resolution Using Deep Learning
 Zdravecký, Peter ; Juránek, Roman (oponent) ; Španěl, Michal (vedoucí práce)
This paper demonstrates a super-resolution method for improving the resolution and quality of comic images by using deep learning. The challenging part of the task was to keep the quality of the text parts and drawings simultaneously, without significant deformation of any part. Two deep neural networks were used to achieve satisfying results. U-Net network and its modification called Robust U-Net. The chosen loss functions to train these networks were the Mean Squared Error and Perceptual loss. The work contains experiments on U-Net and modified RUNet networks with a combination of each loss function. Additional experiments looked at how the number of used blocks from the VGG16 loss network affects the Perceptual loss function. Experiments have shown that a Robust U-Net network using a Perceptual loss with three extracted blocks got the best results.
Úplný záznam
Comic Images Super-Resolution Using Deep Learning
 Zdravecký, Peter ; Juránek, Roman (oponent) ; Španěl, Michal (vedoucí práce)
This paper demonstrates a super-resolution method for improving the resolution and quality of comic images by using deep learning. The challenging part of the task was to keep the quality of the text parts and drawings simultaneously, without significant deformation of any part. Two deep neural networks were used to achieve satisfying results. U-Net network and its modification called Robust U-Net. The chosen loss functions to train these networks were the Mean Squared Error and Perceptual loss. The work contains experiments on U-Net and modified RUNet networks with a combination of each loss function. Additional experiments looked at how the number of used blocks from the VGG16 loss network affects the Perceptual loss function. Experiments have shown that a Robust U-Net network using a Perceptual loss with three extracted blocks got the best results.
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