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- research-articleJanuary 2024
Spatially-Varying Illumination-Aware Indoor Harmonization
International Journal of Computer Vision (IJCV), Volume 132, Issue 7Jul 2024, Pages 2473–2492https://doi.org/10.1007/s11263-024-01994-zAbstractIn this paper, we address the problem of spatially-varying illumination-aware indoor harmonization. Existing image harmonization works either focus on extracting no more than 2D information (e.g., low-level statistics or image filters) from the ...
- research-articleJuly 2023
IID-MEF: A multi-exposure fusion network based on intrinsic image decomposition
Information Fusion (INFU), Volume 95, Issue CJul 2023, Pages 326–340https://doi.org/10.1016/j.inffus.2023.02.031AbstractThis paper follows the idea of divide and conquer to propose a multi-exposure fusion network for the unsupervised generation of high dynamic range-like images. We develop a new intrinsic image decomposition (IID) network based on our modified IID ...
Highlights- An MEF network based on intrinsic image decomposition is proposed to generate HDR images.
- We design a decomposition network to produce reflectance, shading, and color.
- We propose three sub-networks to integrate texture, adjust ...
- research-articleAugust 2022
ASH - A Case For Layered Shading
DigiPro '22: Proceedings of the 2022 Digital Production SymposiumAugust 2022, Article No.: 7, Pages 1–15https://doi.org/10.1145/3543664.3543675For the past 8 years, Animal Logic has been using its custom Animal Logic SHading System (ASH) material definition and rendering technology for all film projects within our proprietary pathtracer Glimpse. We compare existing solutions for material ...
- research-articleMarch 2022
An IoT-based approach for optimal relative positioning of solar panel arrays during backtracking
Computer Standards & Interfaces (CSAI), Volume 80, Issue CMar 2022https://doi.org/10.1016/j.csi.2021.103568Highlights- The demand to meet emerging delay constraint IoT design and usage in solar energy plants has been highlighted and an effective application is introduced co-...
There are several studies in the literature and common solutions in practice about solar tracking systems (STSs) and their effective usage in solar power plants. However, they all mainly lack of a serious consideration to eliminate the ...
- research-articleApril 2021
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- ArticleJuly 2019
A Species-specific Individual-based Simulation Model of Mixed Mangrove Forest Stands
SIMULTECH 2019: Proceedings of the 9th International Conference on Simulation and Modeling Methodologies, Technologies and ApplicationsJuly 2019, Pages 153–164https://doi.org/10.5220/0007925701530164A species-specific spatially explicit individual-based model has been developed to simulate the development of mixed mangrove forest stands featuring eight species. The model is a forest stand model that forecasts mangrove forest development in a 50 m x ...
- articleNovember 2018
Variational Reflectance Estimation from Multi-view Images
Journal of Mathematical Imaging and Vision (JMIV), Volume 60, Issue 9November 2018, Pages 1527–1546We tackle the problem of reflectance estimation from a set of multi-view images, assuming known geometry. The approach we put forward turns the input images into reflectance maps, through a robust variational method. The variational model comprises an ...
- articleJuly 2018
Biological property-based artificial scar synthesis using inverse lighting
Multimedia Systems (MUME), Volume 24, Issue 4July 2018, Pages 407–418https://doi.org/10.1007/s00530-017-0564-7The present study proposes a method to extract and apply biological properties to naturally realize a scar texture on the skin. The ratio of melanin to hemoglobin in the skin, which determines inter- and intra-individual variations in skin appearance, ...
- articleJune 2018
Real-time motion blur using extruded triangles
Multimedia Tools and Applications (MTAA), Volume 77, Issue 11June 2018, Pages 13323–13341https://doi.org/10.1007/s11042-017-4949-6Several algorithms have been introduced to render motion blur in real time by solving the visibility problem in the spatial-temporal domains. However, some algorithms render at interactive frame rates but have artifacts or noise. Therefore, we propose a ...
- articleMarch 2017
Intrinsic image estimation using near-$$L_0$$L0 sparse optimization
The Visual Computer: International Journal of Computer Graphics (VISC), Volume 33, Issue 3March 2017, Pages 355–369https://doi.org/10.1007/s00371-015-1205-9The objective of intrinsic images estimation is to decompose an input image into its intrinsic shading and reflectance components. This is a well-known under-constrained problem that has long been an open challenge. This paper proposes a novel approach ...
- research-articleOctober 2016
Automatic garment retexturing based on infrared information
Computers and Graphics (CGRS), Volume 59, Issue COctober 2016, Pages 28–38https://doi.org/10.1016/j.cag.2016.05.002This paper introduces a new automatic technique for garment retexturing using a single static image along with the depth and infrared information obtained using the Microsoft Kinect II as the RGB-D acquisition device. First, the garment is segmented out ...
- ArticleMarch 2015
Interactive Rendering and Stylization of Transportation Networks using Distance Fields
GRAPP 2015: Proceedings of the 10th International Conference on Computer Graphics Theory and ApplicationsMarch 2015, Pages 207–219https://doi.org/10.5220/0005310502070219Transportation networks, such as streets, railroads or metro systems, constitute primary elements in cartography for reckoning and navigation. In recent years, they have become an increasingly important part of 3D virtual environments for the ...
- articleFebruary 2015
Complex shading efficiently for ray tracing on GPU
Multimedia Tools and Applications (MTAA), Volume 74, Issue 3February 2015, Pages 1091–1106https://doi.org/10.1007/s11042-013-1712-5Complex shading often associates with long shaders and huge data access. To obtain good performance on current generation GPU hardware, it is necessary to design some algorithms to manage data, schedule more efficient threads, and memory access under ...
- articleOctober 2014
Time-Lapse Photometric Stereo and Applications
Computer Graphics Forum (COMGRAFOR), Volume 33, Issue 7October 2014, Pages 359–367https://doi.org/10.1111/cgf.12504This paper presents a technique to recover geometry from time-lapse sequences of outdoor scenes. We build upon photometric stereo techniques to recover approximate shadowing, shading and normal components allowing us to alter the material and normals of ...
- articleMarch 2014
Computational modeling of multipurpose amphibious aircraft Be-200
Advances in Engineering Software (ADES), Volume 69March, 2014, Pages 12–17https://doi.org/10.1016/j.advengsoft.2013.12.008The paper is dedicated to 3D computational modeling of amphibious aircraft Be-200. Hereby the process of amphibious aircraft components phased modeling is presented. Variants of shading and rendering of model under development are presented as well.
- articleSeptember 2012
Efficiently Simulating the Bokeh of Polygonal Apertures in a Post-Process Depth of Field Shader
Computer Graphics Forum (COMGRAFOR), Volume 31, Issue 6September 2012, Pages 1810–1822https://doi.org/10.1111/j.1467-8659.2012.02097.xThe effect of aperture shape on an image, known in photography as ‘bokeh’, is an important characteristic of depth of field in real-world cameras. However, most real-time depth of field techniques produce Gaussian bokeh rather than the circular or ...
- articleMay 2012
Technical section: Memory efficient light baking
Computers and Graphics (CGRS), Volume 36, Issue 3May, 2012, Pages 193–200https://doi.org/10.1016/j.cag.2011.12.001In real-time rendering, global lighting information that is too expensive to be computed on the fly is typically pre-computed and baked as vertex attributes or into textures. Prominent examples are view independent effects, such as ambient occlusion, ...
- ArticleAugust 2011
Modeling of Random Shading Effects in Solar Cells
ICSENG '11: Proceedings of the 2011 21st International Conference on Systems EngineeringAugust 2011, Pages 86–90https://doi.org/10.1109/ICSEng.2011.23This paper introduces a modeling scheme that takes the effects of shading patterns on the output power of a solar cell array using MATLAB. A module consisting of an array of parallel connected strings of solar cells is considered for analysis under ...
- research-articleSeptember 2010
Real-Time Volume-Based Ambient Occlusion
IEEE Transactions on Visualization and Computer Graphics (ITVC), Volume 16, Issue 5September 2010, Pages 752–762https://doi.org/10.1109/TVCG.2010.18Real-time rendering can benefit from global illumination methods to make the 3D environments look more convincing and lifelike. On the other hand, the conventional global illumination algorithms for the estimation of the diffuse surface interreflection ...
- ArticleDecember 2008
3D Face Reconstruction from 2D Images
DICTA '08: Proceedings of the 2008 Digital Image Computing: Techniques and ApplicationsDecember 2008, Pages 365–371https://doi.org/10.1109/DICTA.2008.83This paper surveys the topic of 3D face reconstruction using 2D images from a computer science perspective. Various approaches have been proposed as solutions for this problem but most have their limitations and drawbacks. Shape from shading, Shape from ...