1. FEEC - School of Electrical and Computer Engineering
Technical Presentation - Overview
Leonardo Marques Rocha

2. FEEC - School of Electrical and Computer Engineering
 PhD student (2004-2008)
- Expected graduation at December 17th
- School of Electrical and Computer Engineering – Unicamp
- Research area: Data Clustering
 MSc degree (2001-2002)
- Institute of Computing – Unicamp
- Research area: Visualization of 3D images
 Bachelor degree (1995-2000)
- Department of Electrical Engineering – UFC
- Research area: High-perfomance computing
Page 2
Background information
Education

3. FEEC - School of Electrical and Computer Engineering
Background information
Page 3
 TOSHIBA/eiTV/Unicamp (2006-2007)
- Design of a setup box the Brazilian
Digital TV
 Intel/OverPlay/Unicamp (2005-2006)
- Design of a 3D engine for Intel PDAs
 SBTVD/UNICAMP (2005)
- DSP port of H.264 video codec for
Brazilian Digital TV
 FAPESP Technical Training (TT5)
(2002-2003)
- Development of a 3D visualization
software (3D MR images)
 Microsoft Research, Redmond (2009)
- Research in 3D video
 CNPq/UCSB (2008)
- Split program at University of California,
Santa Barbara
 CNPq/Unicamp (2004-2008)
- Research in Data Clustering applied to
Images
 Capes/Unicamp (2001-2002)
- Research in Visualization of 3D images /
Image Processing
 CENAPAD-NE/UFC (2000)
- Internship in ATM Networks
 CNPq/UFC (1996 – 1999)
- Research in Parallel Computing
Work Experience Scholarships / Internships

4. FEEC - School of Electrical and Computer Engineering
 Identify natural groups in a database
- Unsupervised (no prior knowledge)
- Supervised (training phase)
- Non-parametric (no shape is assumed)
 Clustering based on optimum-path florest
of a graph (added to IAPR)
- 50x faster than SVM, 100x faster than Neural
Networks for supervised classification
 Applications in:
- Data mining
- Pattern recognition
- CBIR – Context based image retrieval
- Image segmentation/analysis
- Video compression
- 3 patents (2 national and 1 international)
 Demo avaliable:
- http://www.ic.unicamp.br/~afalcao/libopf
Research
Page 4
Data clustering

5. FEEC - School of Electrical and Computer Engineering
 Real-time visualization of 3D images
based on shear-warp factorization
 Software-based rendering using
efficient data structure
- Surface and volumetric rendering
- Maximum Intensity Projection
- Stereo rendering
- Voxel classification
 Applications in:
- Terrain data analysis
- Medical Imaging
- Mechanical Inspection
 Demo avaliable:
- http://www.ic.unicamp.br/~afalcao/3dview
Research
Page 5
3D Visualization

6. FEEC - School of Electrical and Computer Engineering
 C/C+
 MATLAB
 OpenGL, OpenGL|ES
 Tcl/Tk, wxWidgets,VTK
Software
Page 6
Programming languages and toolkits
Development plataforms
 Linux
 Windows
 Embedded systems
 DSP boards

7. FEEC - School of Electrical and Computer Engineering
Thank you
Page 7
3D Visualization
 Real-time visualization of 3D images
based on shear-warp factorization
 Software-based rendering based on
efficient data structure:
- Surface and volumetric rendering
- Stereo rendering
- Maximum Intensity Projection
- Voxel classification
 Applications in:
- Medical Imaging
- Mechanical inspection
- Sonic data Visualization
 Demo avaliable:
- http://www.ic.unicamp.br/~afalcao/3dview
contact: leonhardrocha@gmail.com
Thank you
“Obrigado”