Dr. Andre Souza Profile

Dr. Andre Souza

Principal Scientist at Medtronic

SPIE Involvement:

Author

Area of Expertise:

image processing , volumetric visualization , mathematical morphology , image analysis , pattern recognition , machine learning

Profile Summary

I focus on building robust algorithms.

I am passionate about entrepreneurship and bringing innovative, cutting-edge technologies to produce remarkable user experiences.

Strong experience in 3-D data processing. Comfortable in working in ambiguity to solve challenging imaging problems and defining unique solutions. Focus on image processing and analysis, volumetric visualization, pattern recognition and machine learning. Always looking for bringing smart-creative people together.

Specialties: Software development, with(in) a team. I love C/C++/Matlab/Python. Segmentation, classification, image processing algorithms, computer vision algorithms, algorithm development, reconstruction, computer graphics, machine learning techniques, video processing, registration, 3-D visualization, volume rendering, open-source libraries: VTK (visualization toolkit), IFT (image foresting transform), ITK(segmentation and registration toolkit), OpenCV.

From 2002 to 2007, Andre was a PostDoc with the Medical Imaging Processing Group (MIPG) at the University of Pennsylvania, School of Medicine - Department of Radiology.

Andre holds a Doctor of Science degree and a Master of Science degree in Medical Physics from the University of Sao Paulo, Brazil. He conducted his doctorate research at the University of Pennsylvania from 2000 to 2001. Andre earned his Bachelor degree in Physics from the Federal University of Bahia, Brazil.

Publications (16)

SPIE Journal Paper | 13 March 2021 Open Access

Open Access

Sinogram + image domain neural network approach for metal artifact reduction in low-dose cone-beam computed tomography

Michael Ketcha, Michael Marrama, Andre Souza, Ali Uneri, Pengwei Wu, Xiaoxuan Zhang, Patrick Helm, Jeffrey Siewerdsen

JMI, Vol. 8, Issue 05, 052103, (March 2021) https://doi.org/10.1117/12.10.1117/1.JMI.8.5.052103

KEYWORDS: Metals, Image segmentation, Neural networks, Signal attenuation, Data modeling, Head, 3D image processing, Computed tomography, Network architectures, 3D image reconstruction

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Proceedings Article | 12 March 2014 Paper

Paper

Detection of tooth fractures in CBCT images using attention index estimation

Andre Souza, Alexandre Falcão, Lawrence Ray

Proceedings Volume 9036, 90361R (2014) https://doi.org/10.1117/12.2041708

KEYWORDS: Teeth, Image segmentation, 3D image processing, Visualization, Image processing algorithms and systems, 3D displays, 3D visualizations, Computed tomography, Chemical elements, 3D modeling

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Proceedings Article | 14 March 2013 Paper

Paper

3-D examination of dental fractures with minimum user intervention

Andre Souza, Alexandre Falcão, Lawrence Ray

Proceedings Volume 8671, 86712K (2013) https://doi.org/10.1117/12.2000310

KEYWORDS: Teeth, Image segmentation, 3D image processing, Visualization, Algorithm development, 3D visualizations, 3D modeling, Image processing algorithms and systems, X-ray computed tomography, Bone

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Proceedings Article | 3 March 2012 Paper

Paper

Fast-forward projection approach for 3D iterative metal artifact suppression

Andre Souza

Proceedings Volume 8313, 83133P (2012) https://doi.org/10.1117/12.904555

KEYWORDS: Metals, Reconstruction algorithms, Image quality, Digital filtering, CT reconstruction, Diagnostics, Temporal resolution, 3D image processing, Medicine, Computed tomography

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Proceedings Article | 15 March 2011 Paper

Paper

Noise-resistant adaptive scale using stabilized diffusion

Andre Souza

Proceedings Volume 7962, 79624W (2011) https://doi.org/10.1117/12.871348

KEYWORDS: Diffusion, Image processing, 3D modeling, Anisotropic diffusion, Mathematical modeling, Brain, Medical imaging, Switching, Nonlinear control, Control systems

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Proceedings Article | 17 March 2008 Paper

Paper

The architecture and performance of CAVASS

George Grevera, Jayaram Udupa, Dewey Odhner, Ying Zhuge, Andre Souza

Proceedings Volume 6918, 691833 (2008) https://doi.org/10.1117/12.773108

KEYWORDS: Surgery, Image processing, Visualization, Human-machine interfaces, Medical imaging, Binary data, Volume rendering, Software development, Visual analytics, C++

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Proceedings Article | 22 March 2007 Paper

Paper

CAVASS: a computer-assisted visualization and analysis software system - image processing aspects

Jayaram Udupa, George Grevera, Dewey Odhner, Ying Zhuge, Andre Souza, Shipra Mishra, Tad Iwanaga

Proceedings Volume 6509, 65091V (2007) https://doi.org/10.1117/12.709841

KEYWORDS: Image processing, Surgery, Visualization, Software development, Image segmentation, Medical imaging, 3D image processing, Visual analytics, Human-machine interfaces, Java

Read Abstract +

The development of the concepts within 3DVIEWNIX and of the software system 3DVIEWNIX itself dates back to the 1970s. Since then, a series of software packages for Computer Assisted Visualization and Analysis (CAVA) of images came out from our group, 3DVIEWNIX released in 1993, being the most recent, and all were distributed with source code. CAVASS, an open source system, is the latest in this series, and represents the next major incarnation of 3DVIEWNIX. It incorporates four groups of operations: IMAGE PROCESSING (including ROI, interpolation, filtering, segmentation, registration, morphological, and algebraic operations), VISUALIZATION (including slice display, reslicing, MIP, surface rendering, and volume rendering), MANIPULATION (for modifying structures and surgery simulation), ANALYSIS (various ways of extracting quantitative information). CAVASS is designed to work on all platforms. Its key features are: (1) most major CAVA operations incorporated; (2) very efficient algorithms and their highly efficient implementations; (3) parallelized algorithms for computationally intensive operations; (4) parallel implementation via distributed computing on a cluster of PCs; (5) interface to other systems such as CAD/CAM software, ITK, and statistical packages; (6) easy to use GUI. In this paper, we focus on the image processing operations and compare the performance of CAVASS with that of ITK. Our conclusions based on assessing performance by utilizing a regular (6 MB), large (241 MB), and a super (873 MB) 3D image data set are as follows: CAVASS is considerably more efficient than ITK, especially in those operations which are computationally intensive. It can handle considerably larger data sets than ITK. It is easy and ready to use in applications since it provides an easy to use GUI. The users can easily build a cluster from ordinary inexpensive PCs and reap the full power of CAVASS inexpensively compared to expensive multiprocessing systems which are less efficient for CAVA operations.

Proceedings Article | 21 March 2007 Paper

Paper

CAVASS: a computer assisted visualization and analysis software system - visualization aspects

George Grevera, Jayaram Udupa, Dewey Odhner, Ying Zhuge, Andre Souza, Tad Iwanaga, Shipra Mishra

Proceedings Volume 6509, 650904 (2007) https://doi.org/10.1117/12.711170

KEYWORDS: Visualization, Volume rendering, Visual analytics, Image processing, Medical imaging, Magnetic resonance imaging, Computing systems, Surgery, Image segmentation, Standards development

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Proceedings Article | 21 March 2007 Paper

Paper

Introducing CAVASS: a Computer-Assisted Visualization and Analysis Software System

George Grevera, Jayaram Udupa, Dewey Odhner, Ying Zhuge, Andre Souza, Tad Iwanaga, Shipra Mishra

Proceedings Volume 6516, 651608 (2007) https://doi.org/10.1117/12.709725

KEYWORDS: Volume rendering, Visualization, Visual analytics, Image processing, Human-machine interfaces, Image segmentation, Medical imaging, 3D image processing, Binary data, Computing systems

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Proceedings Article | 15 March 2006 Paper

Paper

Iterative live wire and live snake: new user-steered 3D image segmentation paradigms

Andre Souza, Jayaram Udupa, George Grevera, Yi Sun, Dewey Odhner, Neeti Suri, Mitchell Schnall

Proceedings Volume 6144, 61443N (2006) https://doi.org/10.1117/12.651333

KEYWORDS: Image segmentation, 3D image processing, Breast, Medical imaging, Image processing, 3D modeling, Magnetic resonance imaging, Radiology, 3D magnetic resonance imaging, Data modeling

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Proceedings Article | 15 March 2006 Paper

Paper

A new general method of 3D model generation for active shape image segmentation

Seong-Jae Lim, Jayaram Udupa, Andre Souza, Yong-Yeon Jeong, Yo-Sung Ho, Drew Torigian

Proceedings Volume 6144, 61444B (2006) https://doi.org/10.1117/12.653751

KEYWORDS: 3D modeling, 3D image processing, Image segmentation, Statistical modeling, Binary data, Liver, Model-based design, Computed tomography, Image processing, Medical imaging

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Proceedings Article | 29 April 2005 Paper

Paper

Generalized ball-scale: theory, algorithms, and application to image inhomogeneity correction

Anant Madabhushi, Jayaram Udupa, Andre Souza

Proceedings Volume 5747, (2005) https://doi.org/10.1117/12.595360

KEYWORDS: Image processing, Magnetic resonance imaging, Binary data, Image segmentation, 3D modeling, Algorithms, Medical imaging, Visualization, Brain, Multiscale representation

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Proceedings Article | 29 April 2005 Paper

Paper

Generalized scale-based image filtering

Andre Souza, Jayaram Udupa, Anant Madabhushi

Proceedings Volume 5747, (2005) https://doi.org/10.1117/12.595784

KEYWORDS: Diffusion, Image filtering, Image processing, Radon, Anisotropic diffusion, Medical imaging, Signal to noise ratio, Fourier transforms, Optical fiber cables, Process control

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Proceedings Article | 29 April 2005 Paper

Paper

Automatic landmark selection for active shape models

Andre Souza, Jayaram Udupa

Proceedings Volume 5747, (2005) https://doi.org/10.1117/12.595463

KEYWORDS: Image segmentation, Binary data, Shape analysis, Image processing, Magnetic resonance imaging, Medical imaging, Statistical analysis, Data modeling, Statistical modeling, Process modeling

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Proceedings Article | 12 May 2004 Paper

Paper

Generalized scale: theory, algorithms, and application to image inhomogeneity correction

Anant Madabhushi, Jayaram Udupa, Andre Souza

Proceedings Volume 5370, (2004) https://doi.org/10.1117/12.535696

KEYWORDS: Image processing, Magnetic resonance imaging, Tissues, Image segmentation, Visualization, Multiscale representation, Algorithms, Brain, Medical imaging, Image analysis

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Proceedings Article | 17 May 2002 Paper

Paper

Volume rendering in the presence of partial volume effects

Andre Souza, Jayaram Udupa, Punam Saha

Proceedings Volume 4681, (2002) https://doi.org/10.1117/12.466974

KEYWORDS: Tissues, Skin, Bone, Fermium, Frequency modulation, Image segmentation, Volume rendering, Computed tomography, X-ray computed tomography, X-rays

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Showing 5 of 16 publications

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