1 resultado para pacs: other fields of business and administrative computing
em Massachusetts Institute of Technology
Filtro por publicador
- Academic Archive On-line (Karlstad University; Sweden) (1)
- Academic Archive On-line (Stockholm University; Sweden) (1)
- Academic Research Repository at Institute of Developing Economies (1)
- Acceda, el repositorio institucional de la Universidad de Las Palmas de Gran Canaria. España (2)
- AMS Tesi di Dottorato - Alm@DL - Università di Bologna (7)
- AMS Tesi di Laurea - Alm@DL - Università di Bologna (2)
- Applied Math and Science Education Repository - Washington - USA (1)
- ArchiMeD - Elektronische Publikationen der Universität Mainz - Alemanha (3)
- Archive of European Integration (43)
- Aston University Research Archive (8)
- Biblioteca Digital da Produção Intelectual da Universidade de São Paulo (6)
- Biblioteca Digital da Produção Intelectual da Universidade de São Paulo (BDPI/USP) (14)
- Biodiversity Heritage Library, United States (12)
- BORIS: Bern Open Repository and Information System - Berna - Suiça (42)
- Brock University, Canada (10)
- Bucknell University Digital Commons - Pensilvania - USA (1)
- CaltechTHESIS (1)
- CentAUR: Central Archive University of Reading - UK (67)
- CiencIPCA - Instituto Politécnico do Cávado e do Ave, Portugal (3)
- Cochin University of Science & Technology (CUSAT), India (11)
- Comissão Econômica para a América Latina e o Caribe (CEPAL) (45)
- Consorci de Serveis Universitaris de Catalunya (CSUC), Spain (23)
- Corvinus Research Archive - The institutional repository for the Corvinus University of Budapest (1)
- Dalarna University College Electronic Archive (4)
- Department of Computer Science E-Repository - King's College London, Strand, London (1)
- Digital Archives@Colby (1)
- Digital Commons - Montana Tech (1)
- Digital Commons at Florida International University (1)
- Digital Peer Publishing (3)
- DigitalCommons@The Texas Medical Center (7)
- DigitalCommons@University of Nebraska - Lincoln (5)
- Digitale Sammlungen - Goethe-Universität Frankfurt am Main (3)
- Diposit Digital de la UB - Universidade de Barcelona (2)
- Doria (National Library of Finland DSpace Services) - National Library of Finland, Finland (27)
- Duke University (1)
- Fachlicher Dokumentenserver Paedagogik/Erziehungswissenschaften (1)
- Galway Mayo Institute of Technology, Ireland (1)
- Institute of Public Health in Ireland, Ireland (8)
- Instituto Politécnico do Porto, Portugal (3)
- Iowa Publications Online (IPO) - State Library, State of Iowa (Iowa), United States (20)
- Lume - Repositório Digital da Universidade Federal do Rio Grande do Sul (1)
- Massachusetts Institute of Technology (1)
- Ministerio de Cultura, Spain (2)
- Publishing Network for Geoscientific & Environmental Data (221)
- ReCiL - Repositório Científico Lusófona - Grupo Lusófona, Portugal (2)
- Repositório de Administração Pública (REPAP) - Direção-Geral da Qualificação dos Trabalhadores em Funções Públicas (INA), Portugal (1)
- Repositório de Produção CIentífica da Escola Nacional de Saúde Pública Sergio Arouca (ENSP), FIOCRUZ (Fundação Oswaldo Cruz), Brazil (1)
- Repositório digital da Fundação Getúlio Vargas - FGV (6)
- Repositório Institucional UNESP - Universidade Estadual Paulista "Julio de Mesquita Filho" (24)
- Repositorio Institucional Universidad de Medellín (2)
- RUN (Repositório da Universidade Nova de Lisboa) - FCT (Faculdade de Cienecias e Technologia), Universidade Nova de Lisboa (UNL), Portugal (38)
- School of Medicine, Washington University, United States (1)
- Scielo Saúde Pública - SP (26)
- Universidad del Rosario, Colombia (1)
- Universidad Politécnica de Madrid (3)
- Universidade dos Açores - Portugal (1)
- Universidade Federal do Pará (1)
- Universidade Federal do Rio Grande do Norte (UFRN) (2)
- Universitätsbibliothek Kassel, Universität Kassel, Germany (2)
- Université de Lausanne, Switzerland (43)
- Université de Montréal, Canada (11)
- University of Connecticut - USA (2)
- University of Michigan (48)
- University of Queensland eSpace - Australia (39)
- University of Washington (1)
Resumo:
Local descriptors are increasingly used for the task of object recognition because of their perceived robustness with respect to occlusions and to global geometrical deformations. We propose a performance criterion for a local descriptor based on the tradeoff between selectivity and invariance. In this paper, we evaluate several local descriptors with respect to selectivity and invariance. The descriptors that we evaluated are Gaussian derivatives up to the third order, gray image patches, and Laplacian-based descriptors with either three scales or one scale filters. We compare selectivity and invariance to several affine changes such as rotation, scale, brightness, and viewpoint. Comparisons have been made keeping the dimensionality of the descriptors roughly constant. The overall results indicate a good performance by the descriptor based on a set of oriented Gaussian filters. It is interesting that oriented receptive fields similar to the Gaussian derivatives as well as receptive fields similar to the Laplacian are found in primate visual cortex.