Prof. Helio Pedrini Profile

Prof. Helio Pedrini

at Univ of Campinas

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Author

Publications (6)

SPIE Journal Paper | 12 December 2017

Down syndrome detection based on facial features using a geometric descriptor

Jadisha Yarif Ramírez Cornejo, Helio Pedrini, Ariane Machado-Lima, Fátima de Lourdes dos Santos Nunes

JMI, Vol. 4, Issue 04, 044008, (December 2017) https://doi.org/10.1117/12.10.1117/1.JMI.4.4.044008

KEYWORDS: Principal component analysis, Facial recognition systems, Genetics, Feature extraction, Photography, Nose, Feature selection, Image classification, Mouth, Laser induced plasma spectroscopy

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SPIE Journal Paper | 26 April 2016

Hyperspectral data classification improved by minimum spanning forests

Ricardo Dutra da Silva, Helio Pedrini

JARS, Vol. 10, Issue 02, 025007, (April 2016) https://doi.org/10.1117/12.10.1117/1.JRS.10.025007

KEYWORDS: Data acquisition, Principal component analysis, Image classification, Hyperspectral imaging, Spectrometers, Environmental sensing, Minerals, Imaging systems, Remote sensing, Agriculture

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SPIE Journal Paper | 3 February 2016

Real-time action recognition using a multilayer descriptor with variable size

Marlon Alcantara, Thierry Moreira, Helio Pedrini

JEI, Vol. 25, Issue 01, 013020, (February 2016) https://doi.org/10.1117/12.10.1117/1.JEI.25.1.013020

KEYWORDS: Video, Curium, Video surveillance, Cameras, Feature extraction, Video processing, Principal component analysis, Surveillance, Intelligence systems, Surveillance systems

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SPIE Journal Paper | 19 March 2015

Effects of cultural characteristics on building an emotion classifier through facial expression analysis

Flávio Altinier Maximiano da Silva, Helio Pedrini

JEI, Vol. 24, Issue 02, 023015, (March 2015) https://doi.org/10.1117/12.10.1117/1.JEI.24.2.023015

KEYWORDS: Distributed interactive simulations, Finite element methods, Image filtering, Data modeling, Detection and tracking algorithms, Algorithm development, 3D modeling, Binary data, Machine learning, Light sources and illumination

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SPIE Journal Paper | 24 June 2014

Linear dimensionality reduction applied to scale invariant feature transformation and speeded up robust feature descriptors

Ricardo Eugenio González Valenzuela, William Schwartz, Helio Pedrini

JEI, Vol. 23, Issue 03, 033017, (June 2014) https://doi.org/10.1117/12.10.1117/1.JEI.23.3.033017

KEYWORDS: Feature extraction, Principal component analysis, Image retrieval, Matrices, Image classification, Lead, Precision measurement, Dimension reduction, Image compression, Tolerancing

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SPIE Journal Paper | 22 June 2012

Evaluation of feature descriptors for texture classification

William Schwartz, Fernando de Siqueira, Helio Pedrini

JEI, Vol. 21, Issue 2, 023016, (June 2012) https://doi.org/10.1117/12.10.1117/1.JEI.21.2.023016

KEYWORDS: Image classification, Feature extraction, Wavelets, Matrices, Image filtering, Binary data, Statistical modeling, Data modeling, Wavelet transforms, Magnetorheological finishing

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Showing 5 of 6 publications

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