| dc.creator | Saracchini, RFV | |
| dc.creator | Stolfi, J | |
| dc.creator | Leitao, HCD | |
| dc.date | 2011 | |
| dc.date | DEC | |
| dc.date | 2014-07-30T13:43:10Z | |
| dc.date | 2015-11-26T16:32:30Z | |
| dc.date | 2014-07-30T13:43:10Z | |
| dc.date | 2015-11-26T16:32:30Z | |
| dc.date.accessioned | 2018-03-28T23:13:55Z | |
| dc.date.available | 2018-03-28T23:13:55Z | |
| dc.identifier | Ieee Transactions On Image Processing. Ieee-inst Electrical Electronics Engineers Inc, v. 20, n. 12, n. 3495, n. 3507, 2011. | |
| dc.identifier | 1057-7149 | |
| dc.identifier | WOS:000297340300016 | |
| dc.identifier | 10.1109/TIP.2011.2159386 | |
| dc.identifier | http://www.repositorio.unicamp.br/jspui/handle/REPOSIP/53953 | |
| dc.identifier | http://repositorio.unicamp.br/jspui/handle/REPOSIP/53953 | |
| dc.identifier.uri | http://repositorioslatinoamericanos.uchile.cl/handle/2250/1270534 | |
| dc.description | Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES) | |
| dc.description | Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq) | |
| dc.description | Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP) | |
| dc.description | In this paper, we describe a data structure and an algorithm to accelerate the table lookup step in example-based multiimage photometric stereo. In that step, one must find a pixel of a reference object, of known shape and color, whose appearance under m different illumination fields is similar to that of a given scene pixel. This search reduces to finding the closest match to a given m-vector in a table with a thousand or more m-vectors. Our method is faster than previously known solutions for this problem but, unlike some of them, is exact, i.e., always yields the best matching entry in the table, and does not assume point-like sources. Our solution exploits the fact that the table is in fact a fairly flat 2-D manifold in m-dimensional space so that the search can be efficiently solved with a uniform 2-D grid structure. | |
| dc.description | 20 | |
| dc.description | 12 | |
| dc.description | 3495 | |
| dc.description | 3507 | |
| dc.description | Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES) | |
| dc.description | Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq) | |
| dc.description | Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP) | |
| dc.description | Fundação de Amparo à Pesquisa do Estado do Rio de Janeiro (FAPERJ) | |
| dc.description | Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES) | |
| dc.description | Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq) | |
| dc.description | Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP) | |
| dc.description | CNPq [304581/2004-6, 301016/19-5] | |
| dc.description | FAPESP [2007/52015-0, 2007/59509-9] | |
| dc.description | FAPERJ [E26/100.532/2007] | |
| dc.language | en | |
| dc.publisher | Ieee-inst Electrical Electronics Engineers Inc | |
| dc.publisher | Piscataway | |
| dc.publisher | EUA | |
| dc.relation | Ieee Transactions On Image Processing | |
| dc.relation | IEEE Trans. Image Process. | |
| dc.rights | fechado | |
| dc.rights | http://www.ieee.org/publications_standards/publications/rights/rights_policies.html | |
| dc.source | Web of Science | |
| dc.subject | Algorithm | |
| dc.subject | closest match | |
| dc.subject | photometric stereo | |
| dc.subject | uniform grid structure | |
| dc.subject | Non-lambertian Surfaces | |
| dc.subject | Multiple Images | |
| dc.subject | Shape | |
| dc.subject | Reconstruction | |
| dc.subject | Shadows | |
| dc.title | A Uniform Grid Structure to Speed Up Example-Based Photometric Stereo | |
| dc.type | Artículos de revistas | |
