Otávio Augusto Bizetto Penatti

Hi! I'm a research senior manager in Artificial Intelligence at Samsung R&D Institute Brazil and this is my personal web page. In this page, you can find some news and materials related to myself and my research.
You can also find more information about myself on the links below.

    LinkedIn       Google Scholar       GitHub       Curriculum Lattes

Some news:


Awards:

    [My awards on LinkedIn]


Academic Projects:

  • Postdoc (12/2012 - 12/2013) - Unicamp/Samsung:
    Pattern recognition and classification by feature engineering, *-fusion, open set recognition and meta-recognition
    Principal investigator: Anderson de Rezende Rocha
    Awards:

  • PhD (03/2009 - 11/2012):
    Exploring visual dictionaries for Web image retrieval
    Advisor: Ricardo da Silva Torres
    Awards:
    • 3º place - Posters - PhD - Workshop of Thesis and Dissertations 2009 - Institute of Computing - University of Campinas (Unicamp)
    • Best Paper Award - 2011 - "Encoding spatial arrangement of visual words" - Iberoamerican Congress on Pattern Recognition (CIARP-IAPR)
    Visiting scholar:
    • 2011 (June to July) - Cedric/Cnam - Paris, France - Prof. Valerie Gouet-Brunet
    • 2012 (July to October) - University of Colorado at Colorado Springs (UCCS), CO, USA - Prof. Terrance E. Boult and Prof. Walter J. Scheirer

    Abstract   |    Thesis (PDF)

  • Master's (03/2007 - 03/2009):
    Comparative study of descriptors for content-based image retrieval on the Web
    Advisor: Ricardo da Silva Torres
    Awards:
    Abstract   |    Libdescriptors repository   |    Eva tool   |    Dissertation (in portuguese)

  • Undergraduate research project (07/2006 - 12/2006):
    Content-based image retrieval using spatial relationship descriptors
    Advisor: Ricardo da Silva Torres
    Awards:
    • 3º place CTIC 2007 - Undergraduate Research Projects Contest - Brazilian Computer Society (SBC)
    • Best Undergraduate Research Project 2006 - Institute of Computing - University of Campinas (Unicamp)

    Abstract   |    Demo


Patents:

    [My patents on Google Patents]

Publications:

    [My publications on Google Scholar]

 Conference
 Journal
  • Learning multiplane images from single views with self-supervision
    CARVALHO, G. S. P. ; LUVIZON, D. C. ; JOIA, A. ; PACHECO, A. G. C. ; PENATTI, O. A. B.
    In: British Machine Vision Conference (BMVC), 2021.
    Abstract    |    Paper    |    Slides & Video (BMVC)    |    Video (YouTube)

  • Adaptive Multiplane Image Generation From a Single Internet Picture
    LUVIZON, D. C. ; CARVALHO, G. S. P. ; dos Santos, A. A. ; CONCEICAO, J. S. ; FLORES-CAMPANA, J. L. ; DECKER, L. G. ; SOUZA, M. R. ; PEDRINI, H. ; JOIA, A. ; PENATTI, O. A. B.
    In: IEEE/CVF Winter Conference on Applications of Computer Vision (WACV), 2021, p. 2556-2565.
    Abstract    |    Paper

  • A comparison of graph-based semi-supervised learning for data augmentation
    OLIVEIRA, W. D. G. ; PENATTI, O. A. B. ; BERTON, L.
    In: Conference on Graphics, Patterns, and Images (SIBGRAPI), 2020.
    Abstract    |    Paper    |    Videos: 8min / 4min

  • Object-based Temporal Segment Relational Network for Activity Recognition
    MELO, V. H. C. ; SANTOS, J. B. ; CAETANO, C. ; SENA, J. ; PENATTI, O. A. B. ; SCHWARTZ, W. R.
    In: Conference on Graphics, Patterns, and Images (SIBGRAPI), 2018, p. 103-109.
    Abstract    |    Paper

  • Bag of Attributes for Video Event Retrieval
    DUARTE, L. A. ; PENATTI, O. A. B. ; ALMEIDA, J.
    In: Conference on Graphics, Patterns, and Images (SIBGRAPI), 2018, p. 447-454.
    Abstract (Best Paper Award)    |    Paper

  • Exploiting ConvNet Diversity for Flooding Identification
    NOGUEIRA K. ; FADEL, S. G. ; DOURADO, I. C., WERNECK, R. de O. ; MUNOZ, J. A. V. ; PENATTI, O. A. B. ; CALUMBY, R. T., LI, L. T. ; SANTOS, J. A., TORRES, R. da S.
    In: IEEE Geoscience and Remote Sensing Letters, volume 15, issue 9, p. 1446-1450, 2018.
    Abstract    |    Paper

  • TWM: A framework for creating highly compressible videos targeted to computer vision tasks
    ANDALÓ, F. A. ; PENATTI, O. A. B. ; TESTONI, V.
    In: Elsevier Pattern Recognition letters, volume 114, p. 63-72, 2017.
    Abstract    |    Paper    |    Patent

  • Kuaa: A unified framework for design, deployment, execution, and recommendation of machine learning experiments
    WERNECK, R. de O. ; DE ALMEIDA, W. R. ; STEIN, B. V. ; PAZINATO, D. V. ; MENDES JUNIOR, P. R. ; PENATTI, O. A. B. ; TORRES, R. da S. ; ROCHA, A.
    In: Future Generation Computer Systems, volume 78, part 1, p. 59-76, 2018.
    Abstract    |    Paper    |    Code (Github)

  • Nearest neighbors distance ratio open-set classifier
    MENDES JUNIOR, P. R. ; DE SOUZA, R. M. ; WERNECK, R. de O. ; STEIN, B. V. ; PAZINATO, D. V. ; DE ALMEIDA, W. R. ; PENATTI, O. A. B. ; TORRES, R. da S. ; ROCHA, A.
    In: Springer Machine Learning, volume 106, issue 3, p. 359-386, 2017.
    Abstract    |    Paper    |    Patent

  • Towards Better Exploiting Convolutional Neural Networks for Remote Sensing Scene Classification
    NOGUEIRA, K. ; PENATTI, O. A. B. ; SANTOS, J. A. dos
    In: Pattern Recognition, volume 61, p. 539-556, 2017.
    Abstract    |    Paper

  • Bag of Genres for Video Retrieval
    DUARTE, L. A. ; PENATTI, O. A. B. ; ALMEIDA, J.
    In: Conference on Graphics, Patterns, and Images (SIBGRAPI), 2016, p. 257-264.
    Abstract    |    Paper

  • Transmitting What Matters - Task-oriented video composition and compression
    ANDALÓ, F. A. ; PENATTI, O. A. B. ; TESTONI, V.
    In: Conference on Graphics, Patterns, and Images (SIBGRAPI), 2016, p. 72-79.
    Abstract    |    Paper

  • Detection of Fragmented Rectangular Enclosures in Very-High-Resolution Remote Sensing Images
    ZINGMAN, I. ; SAUPE, D. ; PENATTI, O. A. B. ; LAMBERS, K.
    In: IEEE Transactions on Geoscience and Remote Sensing, volume 54, number 8, p. 4580-4593, 2016.
    Abstract   |    Paper

  • Pixel-Level Tissue Classification for Ultrasound Images
    PAZINATO, D. V. ; STEIN, B. V. ; DE ALMEIDA, W. R. ; WERNECK, R. de O. ; MENDES JUNIOR, P. R. ; PENATTI, O. A. B. ; TORRES, R. da S. ; MENEZES, F. H. ; ROCHA, A.
    In: IEEE Journal of Biomedical and Health Informatics (J-BHI), volume 20, number 1, p. 256-267, 2016.
    Abstract   |    Paper   |    Pre-print PDF

  • Mid-level Image Representations for Real-time Heart View Plane Classification of Echocardiograms
    PENATTI, O. A. B. ; WERNECK, R. de O. ; DE ALMEIDA, W. R. ; STEIN, B. V. ; PAZINATO, D. V. ; MENDES JUNIOR, P. R. ; TORRES, R. da S. ; ROCHA, A.
    In: Computers in Biology and Medicine, volume 66, p. 66-81, 2015.
    Abstract   |    Paper   |    Pre-print PDF

  • Do Deep Features Generalize from Everyday Objects to Remote Sensing and Aerial Scenes Domains?
    PENATTI, O. A. B. ; NOGUEIRA, K. ; SANTOS, J. A. dos
    In: IEEE Conference on Computer Vision and Pattern Recognition Workshops (CVPR EarthVision Workshop), p. 44-51, 2015.
    Abstract   |    Paper   |    Coffee Scenes dataset

  • Unsupervised Manifold Learning for Video Genre Retrieval
    ALMEIDA, J. ; PEDRONETTE, D. C. G. ; PENATTI, O. A. B.
    In: Iberoamerican Congress on Pattern Recognition (CIARP), Puerto Vallarta, Mexico, 2014, p. 604-612 (LNCS 8827)
    Abstract   |    Paper   |    PDF

  • Efficient and Effective Hierarchical Feature Propagation
    SANTOS, J. A. dos ; PENATTI, O. A. B. ; GOSSELIN, P-H. ; FALCÃO, A. X. ; PHILIPP-FOLIGUET, S. ; TORRES, R. da S.
    In: IEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing (JSTARS), volume 7, number 12, p. 4632-4643, 2014.
    Abstract   |    Paper

  • Unsupervised Distance Learning By Reciprocal kNN Distance for Image Retrieval
    PEDRONETTE, D. C. G. ; PENATTI, O. A. B. ; CALUMBY, R. T. ; TORRES, R. da S.
    In: ACM International Conference on Multimedia Retrieval (ICMR), Glasgow, Scotland, 2014, p. 345:345-345:352.
    Abstract   |    Paper

  • Unsupervised Manifold Learning Using Reciprocal kNN Graphs in Image Re-Ranking and Rank Aggregation Tasks
    PEDRONETTE, D. C. G. ; PENATTI, O. A. B. ; TORRES, R. da S.
    In: Image and Vision Computing, volume 32, number 2, p. 120-130, 2014.
    Abstract   |    Paper   |    Pre-print PDF

  • Visual word spatial arrangement for image retrieval and classification
    PENATTI, O. A. B. ; SILVA, F. B. ; VALLE, E. ; GOUET-BRUNET, V ; TORRES, R. da S.
    In: Pattern Recognition, volume 47, number 2, p. 705-720, 2014.
    Abstract   |    WSA info page

  • A rank aggregation framework for video multimodal geocoding
    LI, L. T. ; PEDRONETTE, D. C. G. ; ALMEIDA, J. ; PENATTI, O. A. B. ; CALUMBY, R. T. ; TORRES, R. da S.
    In: Multimedia Tools and Applications, 2013.
    Abstract   |    Paper

  • Image and Video Representations based on Visual Dictionaries
    PENATTI, O. A. B. ; VALLE, E. ; TORRES, R. da S.
    In: Workshop of Thesis and Dissertations (WTD), 26th Conference on Graphics, Patterns, and Images (SIBGRAPI), Arequipa, Peru, 2013.
    Abstract   |    Paper

  • Domain-specific Image Geocoding: A Case Study on Virginia Tech Building Photos
    LI, L. T. ; PENATTI, O. A. B. ; FOX, E. A. ; TORRES, R. da S.
    In: Joint Conference on Digital Libraries (JCDL), Indianapolis, Indiana, USA, 2013, p. 363-366.
    Abstract   |    Paper   |    VTBuildings dataset

  • Remote Sensing Image Representation based on Hierarchical Histogram Propagation
    SANTOS, J. A. dos ; PENATTI, O. A. B. ; TORRES, R. da S. ; GOSSELIN, P-H. ; PHILIPP-FOLIGUET, S. ; FALCÃO, A. X.
    In: IEEE International Geoscience and Remote Sensing Symposium (IGARSS), Melbourne, Australia, 2013.
    Abstract   |    Paper

  • Multimedia Multimodal Geocoding
    LI, L. T. ; PEDRONETTE, D. C. G. ; ALMEIDA, J. ; PENATTI, O. A. B. ; CALUMBY, R. T. ; TORRES, R. da S.
    In: ACM SIGSPATIAL International Conference on Advances in Geographic Information Systems (ACM SIGSPATIAL GIS), Redondo Beach, California, USA, 2012. p. 474-477.
    Abstract   |    Paper

  • A Visual Approach for Video Geocoding using Bag-of-Scenes
    PENATTI, O. A. B. ; LI, L. T. ; ALMEIDA, J. ; TORRES, R. da S.
    In: ACM International Conference on Multimedia Retrieval (ICMR), Hong Kong, China, 2012, p. 53:1-53:8.
    Abstract   |    Paper   |    PDF

  • Improving Texture Description in Remote Sensing Image Multi-Scale Classification Tasks By Using Visual Words
    SANTOS, J. A. dos ; PENATTI, O. A. B. ; TORRES, R. da S. ; P-H. GOSSELIN ; PHILIPP-FOLIGUET, S. ; FALCÃO, A. X.
    In: International Conference on Pattern Recognition (ICPR), Tsukuba Science City, Japan, 2012, p. 3090-3093.
    Abstract   |    Paper

  • Comparative Study of Global Color and Texture Descriptors for Web Image Retrieval
    PENATTI, O. A. B. ; VALLE E. ; TORRES, R. da S.
    In: Journal of Visual Communication and Image Representation, volume 23, number 2, p. 359-380, 2012.
    Abstract (JVCI Best Paper Award Runner Up 2014)  |  Paper |  Journal's Hottest Article: 11th (2014), 5th (2013), 1st (2012).

  • Encoding spatial arrangement of visual words
    PENATTI, O. A. B. ; VALLE, E. ; TORRES, R. da S.
    In: Iberoamerican Congress on Pattern Recognition (CIARP), Pucón, Chile, 2011, p. 240-247 (LNCS 7042)
    Abstract (Best Paper Award)   |    Paper

  • User-oriented evaluation of color descriptors for Web image retrieval
    PENATTI, O. A. B. ; TORRES, R. da S.
    In: European Conference on Research and Advanced Technology for Digital Libraries (ECDL), Glasgow, Scotland, 2010, p. 486-489.
    Abstract   |    Paper

  • Eva - An Evaluation Tool for Comparing Descriptors in Content-based Image Retrieval Tasks
    PENATTI, O. A. B. ; TORRES, R. da S.
    In: 11th ACM SIGMM International Conference on Multimedia Information Retrieval (MIR), Philadelphia, Pennsylvania, USA, 2010, p. 413-416.
    Abstract   |    Paper    |    Eva tool

  • Evaluating the Potential of Texture and Color Descriptors for Remote Sensing Image Retrieval and Classification
    SANTOS, J. A. dos ; PENATTI, O. A. B. ; TORRES, R. da S.
    In: Proceedings of International Conference on Computer Vision Theory and Applications (VISAPP), Angers, France, 2010, p. 203-210.
    Abstract   |    Paper

  • Color Descriptors for Web Image Retrieval: a Comparative Study
    PENATTI, O. A. B. ; TORRES, R. da S.
    In: XXI Brazilian Symposium on Computer Graphics and Image Processing (SIBGRAPI), Campo Grande, MS, Brazil, 2008, p. 163-170.
    Abstract   |    Paper

  • Recuperação de Imagens: Desafios e Novos Rumos (Image retrieval: Challenges and new trends)
    TORRES, R. da S. ; ZEGARRA, J. A. M. ; SANTOS, J. A. ; FERREIRA, C. D. ; PENATTI, O. A. B. ; ANDALO, F. A. ; ALMEIDA JUNIOR, J. G.
    In: XXXV Seminário Integrado de Software e Hardware, Belém, PA, Brazil, 2008, p. 223-237.
    Abstract   |    Paper

  • Spatial relationship descriptor based on partitions (Descritor de Relacionamento Espacial Baseado em Partições)
    PENATTI, O. A. B. ; TORRES, R. da S.
    In: Electronic Magazine of Undergraduate Research Projects (REIC-SBC), v. VII, p. 3, 2007. In Portuguese
    Abstract (in pt-br)   |    Paper

Working notes:

  • [MediaEval 2017 - Satellite Task] Data-Driven Flood Detection using Neural Networks
    NOGUEIRA, K. ; FADEL, S. G. ; DOURADO, I. C. ; WERNECK, R. de O. ; MUNOZ, J. A. V. ; PENATTI, O. A. B. ; CALUMBY, R. T. ; LI, L. T. ; SANTOS, J. A. dos ; TORRES, R. da S.
    In: Working Notes Proceedings of the MediaEval Workshop, Dublin, Ireland, 2017.
    PDF   |    Best results in FDSI sub-task and best AP@480 on 2 runs (textual only and textual+visual) of DIRSM sub-task

  • [MediaEval 2016 - Placing Task] RECOD @ Placing Task of MediaEval 2016: A Ranking Fusion Approach for Geographic-Location Prediction of Multimedia Objects
    MUNOZ, J. A. V. ; LI, L. T. ; DOURADO, I. C. ; NOGUEIRA, K. ; FADEL, S. G. ; PENATTI, O. A. B. ; ALMEIDA, J. ; PEREIRA, L. A. M. ; CALUMBY, R. T. ; SANTOS, J. A. dos ; TORRES, R. da S.
    In: Working Notes Proceedings of the MediaEval Workshop, Hilversum, Netherlands, 2016, v. 1739.
    PDF

  • [MediaEval 2016 - Diversity Task] Recod @ MediaEval 2016: Diverse Social Images Retrieval
    FERREIRA, C. D. ; CALUMBY, R. T. ; ARAUJO, I. B. A. C. ; DOURADO, I. C. ; MUNOZ, J. A. V. ; PENATTI, O. A. B. ; LI, L. T. ; ALMEIDA, J. ; TORRES, R. da S.
    In: Working Notes Proceedings of the MediaEval Workshop, Hilversum, Netherlands, 2016, v. 1739.
    PDF

  • [MediaEval 2015 - Placing Task] RECOD @ Placing Task of MediaEval 2015
    LI, L. T. ; MUNOZ, J. A. V. ; ALMEIDA, J. ; CALUMBY, R. T. ; PENATTI, O. A. B. ; DOURADO, I. C. ; NOGUEIRA, K. ; MENDES JR, P. R. ; PEREIRA, L. A. M. ; PEDRONETTE, D. C. G. ; SANTOS, J. A. dos ; GONÇALVES, M. A. ; TORRES, R. da S.
    In: Working Notes Proceedings of the MediaEval Workshop, Wurzen, Germany, 2015, v. 1463.
    PDF

  • [MediaEval 2015 - Diversity Task] Recod @ MediaEval 2015: Diverse Social Images Retrieval
    CALUMBY, R. T. ; ARAUJO, I. B. A. do C. ; SANTANA, V. P. ; MUNOZ, J. A. V. ; PENATTI, O. A. B. ; LI, L. T. ; ALMEIDA, J. ; CHIACHIA G. ; GONÇALVES, M. A. ; TORRES, R. da S.
    In: Working Notes Proceedings of the MediaEval Workshop, Wurzen, Germany, 2015, v. 1463.
    PDF

  • [MediaEval 2014 - Placing Task] Multimedia Geocoding: The RECOD 2014 Approach
    LI, L. T. ; PENATTI, O. A. B. ; ALMEIDA, J. ; CHIACHIA G. ; CALUMBY, R. T. ; MENDES JR, P. R. ; PEDRONETTE, D. C. G. ; TORRES, R. da S.
    In: Working Notes Proceedings of the MediaEval Workshop, Barcelona, Spain, 2014, v. 1263.
    PDF   |    Best overall results for 100m precision range & Distinctive Mention for multimodality

  • [MediaEval 2014 - Diversity Task] Recod @ MediaEval 2014: Diverse Social Images Retrieval
    CALUMBY, R. T. ; SANTANA, V. P. ; CORDEIRO, F. S. ; PENATTI, O. A. B. ; LI, L. T. ; CHIACHIA G. ; TORRES, R. da S.
    In: Working Notes Proceedings of the MediaEval Workshop, Barcelona, Spain, 2014, v. 1263.
    PDF

  • [MediaEval 2013 - Placing Task] Multimodal Image Geocoding: The 2013 RECOD's Approach
    LI, T. L. ; ALMEIDA, J. ; PENATTI, O. A. B. ; CALUMBY, R. T. ; PEDRONETTE, D. C. G. ; GONÇALVES, M. A. ; TORRES, R. da S.
    In: Working Notes Proceedings of the MediaEval Workshop, Barcelona, Spain, 2013, v. 1043.
    PDF

  • [MediaEval 2012 - Placing Task] A Multimodal Approach for Video Geocoding
    LI, L. T. ; ALMEIDA, J. ; PEDRONETTE, D. C. G. , PENATTI, O. A. B. ; TORRES, R. da S.
    In: Working Notes Proceedings of the MediaEval Workshop, Pisa, Italy, 2012, v. 927.
    PDF   |    Best results of visual-based geocoding

  • [MediaEval 2012 - Tagging Task] UNICAMP-UFMG at MediaEval 2012: Genre Tagging Task
    ALMEIDA J. ; SALLES, T. ; MARTINS, E. F. ; PENATTI, O. A. B. ; TORRES, R. da S. ; GONÇALVES, M. A. ; ALMEIDA J. M.
    In: Working Notes Proceedings of the MediaEval Workshop, Pisa, Italy, 2012, v. 927.
    PDF


Courses/Teaching: (in Portuguese)

  • Machine Learning and Computer Vision - An Introduction to Artificial Intelligence
    IDP Open Class
    November 2020

  • Unicamp - Programa de Estágio Docente (PED)
    Disciplina MC102: Algoritmos e Programação de Computadores
    1º semestre 2010
    Turmas: K e L (Engenharia de Alimentos)

  • Unicamp - Programa de Estágio Docente (PED)
    Disciplina MC102: Algoritmos e Programação de Computadores
    1º semestre 2008
    Turmas: Q, R, S e T (Engenharia de Computação)

  • Unicamp - Programa de Estágio Docente (PED)
    Disciplina MC102: Algoritmos e Programação de Computadores
    2º semestre 2007
    Turmas: O e P (Engenharia Química)

Links:



Extras

Here you find some old things that I created.
  • Mercadão Unicamp - Site created with the objective of facilitating the selling and buying of products among students from Unicamp.

  • Image Converter - Converts images to HTML tables or to text. I have made this converter to learn and practice some PHP image functions.

  • Dots Game - team work for the Artificial Intelligence discipline during my undergraduate course at Unicamp - 2006

  • XSLT Tutorial - published in 2005, March 15 in Dicas-L website

  • XPath Tutorial - published in 2005, March 14 in Dicas-L website

  • Renaming Multiple Files - published in 2005, March 05 in Dicas-L website

  • Multiple searches in a given web site - published in 2004, December 08 in Dicas-L website


Contact:

If you want to be in touch, please leave me a message on LinkedIn.

Disclaimer: This page is not an official Samsung publication. Its content is of responsibility of Otávio Penatti.