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dc.rights.licenseCC-BY-NC-ND
dc.contributor.advisorÖnal Ertugrul, I.
dc.contributor.authorAngelov, Dimitar
dc.date.accessioned2024-01-25T00:01:00Z
dc.date.available2024-01-25T00:01:00Z
dc.date.issued2024
dc.identifier.urihttps://studenttheses.uu.nl/handle/20.500.12932/45835
dc.description.abstractInpainting is the process of reconstructing missing parts of an image, with the goal of producing a convincing result. This research, done in collaboration with Cyclomedia, investigates whether latent diffusion models (Rombach et al., 2022) can be used to inpaint the missing regions after an object has been removed from a street-view image. Cyclomedia semantic object masks were refined using the SAM model (Kirillov et al., 2023) to produce high-quality and accurate object coverage for inpainting. Fine-tuning was evaluated for increasing the accuracy and quality of inpainting results. A partial loss function was proposed, implemented, and evaluated. Lastly, a feature-based measure of image complexity was used to evaluate the training data and a model was trained on a subset of the most complex training images. The evaluation process includes both computational metrics and a qualitative user study. We found that the fine-tuning process improves the generative performance of the models, but that the partial loss and data filtering techniques did not result in an improvement. We speculate on reasons why that may be the case and share recommendations for future research directions.
dc.description.sponsorshipUtrecht University
dc.language.isoEN
dc.subjectFind-tuning diffusion models for object removal
dc.titleRemoval and Inpainting of Objects from Street-View Scenes using Diffusion Models
dc.type.contentMaster Thesis
dc.rights.accessrightsOpen Access
dc.subject.keywordsObject removal; Inpainting; Diffusion Networks; Computer Vision; Deep Learning
dc.subject.courseuuArtificial Intelligence
dc.thesis.id27254


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