1 resultado para Frontal-lobe
em Digital Peer Publishing
Filtro por publicador
- Repository Napier (1)
- ABACUS. Repositorio de Producción Científica - Universidad Europea (3)
- Acceda, el repositorio institucional de la Universidad de Las Palmas de Gran Canaria. España (6)
- Adam Mickiewicz University Repository (1)
- AMS Tesi di Dottorato - Alm@DL - Università di Bologna (7)
- AMS Tesi di Laurea - Alm@DL - Università di Bologna (1)
- Aquatic Commons (11)
- Archive of European Integration (1)
- Archivo Digital para la Docencia y la Investigación - Repositorio Institucional de la Universidad del País Vasco (12)
- Aston University Research Archive (60)
- B-Digital - Universidade Fernando Pessoa - Portugal (1)
- Biblioteca de Teses e Dissertações da USP (1)
- Biblioteca Digital - Universidad Icesi - Colombia (1)
- Biblioteca Digital da Produção Intelectual da Universidade de São Paulo (26)
- Biblioteca Digital da Produção Intelectual da Universidade de São Paulo (BDPI/USP) (8)
- Biblioteca Digital de la Universidad Católica Argentina (2)
- Biblioteca Digital de Teses e Dissertações Eletrônicas da UERJ (7)
- Bioline International (1)
- BORIS: Bern Open Repository and Information System - Berna - Suiça (68)
- Boston University Digital Common (7)
- Brock University, Canada (6)
- Bucknell University Digital Commons - Pensilvania - USA (5)
- Bulgarian Digital Mathematics Library at IMI-BAS (1)
- CaltechTHESIS (9)
- Cambridge University Engineering Department Publications Database (18)
- CentAUR: Central Archive University of Reading - UK (26)
- Center for Jewish History Digital Collections (1)
- Chinese Academy of Sciences Institutional Repositories Grid Portal (67)
- Cochin University of Science & Technology (CUSAT), India (6)
- Coffee Science - Universidade Federal de Lavras (1)
- CORA - Cork Open Research Archive - University College Cork - Ireland (1)
- Deakin Research Online - Australia (20)
- Digital Commons at Florida International University (2)
- Digital Peer Publishing (1)
- DigitalCommons@The Texas Medical Center (6)
- Digitale Sammlungen - Goethe-Universität Frankfurt am Main (4)
- DRUM (Digital Repository at the University of Maryland) (1)
- Duke University (36)
- Earth Simulator Research Results Repository (1)
- eResearch Archive - Queensland Department of Agriculture; Fisheries and Forestry (1)
- FUNDAJ - Fundação Joaquim Nabuco (1)
- Helda - Digital Repository of University of Helsinki (17)
- Hospitais da Universidade de Coimbra (1)
- Hospital Prof. Dr. Fernando Fonseca - Portugal (1)
- Indian Institute of Science - Bangalore - Índia (25)
- Lume - Repositório Digital da Universidade Federal do Rio Grande do Sul (3)
- Massachusetts Institute of Technology (5)
- National Center for Biotechnology Information - NCBI (20)
- Plymouth Marine Science Electronic Archive (PlyMSEA) (26)
- Portal de Revistas Científicas Complutenses - Espanha (1)
- Publishing Network for Geoscientific & Environmental Data (17)
- QSpace: Queen's University - Canada (1)
- QUB Research Portal - Research Directory and Institutional Repository for Queen's University Belfast (72)
- Queensland University of Technology - ePrints Archive (130)
- REPOSITÓRIO ABERTO do Instituto Superior Miguel Torga - Portugal (3)
- Repositório Institucional da Universidade Federal do Rio Grande do Norte (1)
- Repositorio Institucional de la Universidad de Málaga (1)
- Repositório Institucional UNESP - Universidade Estadual Paulista "Julio de Mesquita Filho" (63)
- Scielo España (1)
- Scientific Open-access Literature Archive and Repository (1)
- Universidad Autónoma de Nuevo León, Mexico (1)
- Universidad del Rosario, Colombia (4)
- Universidad Politécnica de Madrid (3)
- Universidade de Lisboa - Repositório Aberto (1)
- Universidade Federal do Pará (1)
- Universidade Federal do Rio Grande do Norte (UFRN) (5)
- Universidade Metodista de São Paulo (3)
- Université de Montréal (1)
- Université de Montréal, Canada (13)
- University of Michigan (27)
- University of Queensland eSpace - Australia (13)
- University of Washington (1)
Resumo:
We present an image-based method for relighting a scene by analytically fitting cosine lobes to the reflectance function at each pixel, based on gradient illumination photographs. Realistic relighting results for many materials are obtained using a single per-pixel cosine lobe obtained from just two color photographs: one under uniform white illumination and the other under colored gradient illumination. For materials with wavelength-dependent scattering, a better fit can be obtained using independent cosine lobes for the red, green, and blue channels, obtained from three achromatic gradient illumination conditions instead of the colored gradient condition. We explore two cosine lobe reflectance functions, both of which allow an analytic fit to the gradient conditions. One is non-zero over half the sphere of lighting directions, which works well for diffuse and specular materials, but fails for materials with broader scattering such as fur. The other is non-zero everywhere, which works well for broadly scattering materials and still produces visually plausible results for diffuse and specular materials. We also perform an approximate diffuse/specular separation of the reflectance, and estimate scene geometry from the recovered photometric normals to produce hard shadows cast by the geometry, while still reconstructing the input photographs exactly.