Literatura científica selecionada sobre o tema "Photographie computationnelle"
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Teses / dissertações sobre o assunto "Photographie computationnelle"
Ocampo, Blandon Cristian Felipe. "Patch-Based image fusion for computational photography". Electronic Thesis or Diss., Paris, ENST, 2018. http://www.theses.fr/2018ENST0020.
Texto completo da fonteThe most common computational techniques to deal with the limited high dynamic range and reduced depth of field of conventional cameras are based on the fusion of images acquired with different settings. These approaches require aligned images and motionless scenes, otherwise ghost artifacts and irregular structures can arise after the fusion. The goal of this thesis is to develop patch-based techniques in order to deal with motion and misalignment for image fusion, particularly in the case of variable illumination and blur.In the first part of this work, we present a methodology for the fusion of bracketed exposure images for dynamic scenes. Our method combines a carefully crafted contrast normalization, a fast non-local combination of patches and different regularization steps. This yields an efficient way of producing contrasted and well-exposed images from hand-held captures of dynamic scenes, even in difficult cases (moving objects, non planar scenes, optical deformations, etc.).In a second part, we propose a multifocus image fusion method that also deals with hand-held acquisition conditions and moving objects. At the core of our methodology, we propose a patch-based algorithm that corrects local geometric deformations by relying on both color and gradient orientations.Our methods were evaluated on common and new datasets created for the purpose of this work. From the experiments we conclude that our methods are consistently more robust than alternative methods to geometric distortions and illumination variations or blur. As a byproduct of our study, we also analyze the capacity of the PatchMatch algorithm to reconstruct images in the presence of blur and illumination changes, and propose different strategies to improve such reconstructions
Livros sobre o assunto "Photographie computationnelle"
Computational photography: Methods and applications. Boca Raton, FL: CRC Prss, 2011.
Encontre o texto completo da fonteLukac, Rastislav. Computational Photography: Methods and Applications. Taylor & Francis Group, 2017.
Encontre o texto completo da fonteLukac, Rastislav. Computational Photography: Methods and Applications. Taylor & Francis Group, 2010.
Encontre o texto completo da fonteLukac, Rastislav. Computational Photography: Methods and Applications. Taylor & Francis Group, 2017.
Encontre o texto completo da fonteLukac, Rastislav. Computational Photography: Methods and Applications. Taylor & Francis Group, 2017.
Encontre o texto completo da fonte