Searched for: subject%3A%22Computing%255C+methodologies%22
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document
Molenaar, M.L. (author), Eisemann, E. (author)
Sparse Voxel Directed Acyclic Graphs (SVDAGs) are an efficient solution for storing high-resolution voxel geometry. Recently, algorithms for the interactive modification of SVDAGs have been proposed that maintain the compressed geometric representation. Nevertheless, voxel attributes, such as colours, require an uncompressed storage, which...
journal article 2023
document
Liu, Z. (author), Doubrovski, E.L. (author), Geraedts, Jo M.P. (author), Yam, Y (author), Wang, W. (author), Wang, C.C.L. (author)
In this paper, we propose a method to reconstruct a digital 3D model of a stolen/damaged statue using photogrammetric methods. This task is challenging because the number of available photos for a stolen statue is in general very limited – especially the side/back view photos. Besides using standard structure-from-motion and multi-view stereo...
conference paper 2023
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Matusovic, Marko (author), Parakkat, Amal Dev (author), Eisemann, E. (author)
We introduce an approach for converting pixel art into high-quality vector images. While much progress has been made on automatic conversion, there is an inherent ambiguity in pixel art, which can lead to a mismatch with the artist's original intent. Further, there is room for incorporating aesthetic preferences during the conversion. In...
journal article 2023
document
Coudert-Osmont, Yoann (author), Eisemann, E. (author), Marroquim, Ricardo (author)
Perspective cues play an important role in painting analysis as it may unveil important characteristics about the painter's techniques and creation process. Nevertheless, extracting perspective lines and their corresponding vanishing points is usually a laborious manual task. Moreover, small variations in the lines may lead to large variations...
conference paper 2022
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Guo, Jerry Jinfeng (author), Eisemann, E. (author)
Numerical integration is fundamental in multiple Monte Carlo rendering problems. We present a sample reweighting scheme, including underlying theory, and analysis of numerical performance for the integration of an unknown one-dimensional function. Our method is simple to implement and builds upon the insight to link the weights to a function...
journal article 2021
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Guo, Jerry Jinfeng (author), Eisemann, M. (author), Eisemann, E. (author)
Monte-Carlo rendering requires determining the visibility between scene points as the most common and compute intense operation to establish paths between camera and light source. Unfortunately, many tests reveal occlusions and the corresponding paths do not contribute to the final image. In this work, we present next event estimation++ (NEE++):...
journal article 2020
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van Hengstum, M.J.W. (author), Essers, T.T.W. (author), Elkhuizen, W.S. (author), Dodou, D. (author), Song, Y. (author), Geraedts, Jo M.P. (author), Dik, J. (author)
The aging of paintings is inevitable and over the years degradation occurs due to exposure to a variety of environmental influences. One of these degradations is craquelure, fracture patterns in the paint. 3D imaging techniques offer opportunities to capture the surface of a painting and these patterns at high resolution. In this paper we...
conference paper 2018
Searched for: subject%3A%22Computing%255C+methodologies%22
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