Personal information

Nationality

Spanish

Date of birth

28/03/84

Availability

from July 2012

Previous work and stages

Work

Dates: June 2011 – September 2011

Occupation or position held

Artificial vision engineer (part-time)

Main activities and responsibilities

Design of laser-camera system to obtain 3D reconstruction of transparent objects.

Name and address of employer

TECNOMATRIX

Polígono Industrial LA SERRA 1. c/ Bergadà 3 - Nave 2. 08185 Lliçà de Vall. Barcelona (Spain)

Type of business or sector

Industry. Metrology.

Work

Dates: January 2010 – June 2010

Occupation or position held

Computer vision engineer (part-time)

Main activities and responsibilities

Development of stereo-vision projector-camera and laser-camera systems for intra-oral 3D reconstruction.

Name and address of employer

AQSENSE

Parc Científic i Tecnològic de la UdG · Edifici Jaume Casademont, Porta A, Despatx 23, 17003 Girona (Spain)

Type of business or sector

Spin-off

Stage

Dates: June 2007 – October 2007

Title

Engineering traineeship at the Instituto de Astrofisica de Canarias (IAC)

The task accomplished in this stage involved the development of an image processing data analysis program for the Gran Telescopio de Canarias (GTC) (in the field of space observation)

Institution

Canary Island Astrophysic Institute (IAC), La Laguna, Canary Islands (Spain)

Stage

Dates: July 2006 – October 2006

Title

Engineering traineeship at the Centro Superior de Investigaciones Cientificas (CSIC)

Main activities

The task accomplished in this stage involved the study of image processing algorithms for a new Fast Image detector based on movement (AER) (in the field of microelectronics)

Institution

Centro Superior de Investigaciones Cientificas (CSIC). Instituto de Microelectronica de Sevilla (IMSE).

Sevilla (Spain)

Education

PhD candidate

Dates: January 2009 – (June 2012)

Topic

one-shot dense pattern projection for measuring moving surfaces.

At the moment my research activity is focused on the problems of 3D retrieval from Structured Light (SL). I started my PhD with a deep analysis of the state of the art in SL [1]. Then, I focused on one-shot pattern, able to work in moving scenarios. Among them I studied the so called fringe pattern, which extract dense 3D structure by a frequency analysis of the recovered image. I proposed a new fringe pattern for absolute dense reconstruction [2]. Posteriorly, I developed a new fringe analysis algorithm to improve the accuracy of depth extraction [3]. I am currently working on the development of a one-shot DeBruijn based algorithm which includes the techniques of fringe analysis to obtain a dense and accurate 3D retrieval [4]. Also, I have proposed a pseudo-random pattern for stereo-vision applications [5].

Besides, I have studied the problem of projector calibration, and implemented a new algorithm for projector-camera planar-based calibration [6], [7].

Institution and professor

My supervisor is the prof. Joaquim Salvi, of the Department of Arquitectura I tecnologia de computadors, University of Girona (Spain). Joaquim Salvi is considered an expert in SL, having more than 1250 references most of them in SL and projector and camera calibration.

Moreover, I have done two international stages to study specific sub-topics of my PhD:

Mobility stage

Dates: November 2011 – March 2012

Registering of single view Structured Light images into a composed multi-view 3D image of the scene. This involves the study of global and local feature descriptors for 3D clouds of points, and the development of a suitable global descriptor for 3D points obtained from SL.

Institution and professor

Prof. Andrea Fusiello and prof. Umberto Castellani, of the Department of computer science of the Università degli studi di Verona (Italy).

Mobility stage

Dates: June 2010 – October 2010

Analysis of the frequency based techniques in fringe pattern analysis for projector-camera systems. Development of a wavelet-based algorithm for accurate depth extraction.

Institution and professor

Prof. Munther Gdeisat and prof David Burton, of the General Engineering Research Institute (GERI). John Moores University of Liverpool (U.K.).

Erasmus Mundus MsC

Dates: October 2007 – June 2009

Master

Erasmus Mundus MsC in Computer Vision and Robotics (VIBOT)

VIBOT is a two-year Master Program in 3D Vision and Robotics accredited in 2006 by the European Commission in the framework of the Erasmus Mundus program, a co-operation and mobility program in the field of higher education able to promote the excellence in learning. It was the only Erasmus Mundus master program in 3D Vision and Robotics among the 103 accredited in all disciplines.

Main topics

Image and signal processing, visual perception, 3D digitalization, machine learning, pattern recognition, x-ray and ultrasound imagery, infrared imagery, real-time image processing, autonomous robots.

Institution and dates

University of Heriot-Watt (U.K.): October 2007 – March 2008

University of Girona (Spain): March 2008 – July 2008 and February 2009 – June 2009

University of Burgundy (France): September 2008 – February 2009

Graduation

A with honors. (3^rd in promotion)

Degree (BsC/MsC)

Dates: October 2002 – June 2007

Title

Telecommunication Engineer

Main topics

Image and signal processing, computer nets, radio communication, satellite communication, optic fibers, wave guides, electronic instrumentation and circuit design, digital electronic system

Institution

University of Sevilla (Spain)

Graduation

A with honors. (2^nd in promotion)

Courses and internships

Course

Dates: October 2011 - December 2011

Title

Artificial Intelligence. Level Advanced [Online]

Principal subjects covered

Robotics, Computer Vision, Machine Learning, Advanced planning, Game theory, Hidden Markov Models and filters

Institution and professors

Sebastian Thrun and Peter Norvig. Hosted by the Standford University.

Summer school

Dates: July 2011

Title

ESA Summer School Alpbach 2011: star formation across the Universe

The summer school of Alpbach is organised by the European Space Agency (ESA). The objective is to develop, by groups, a satellite to study a specific problem in astronomy. My group designed a Near Infrared two-mirror-based telescope. I was in charge of the payload group, which involves the design of the mirrors, interferometer, detectors, polarimeters and formation flight system.

Institution

European Space Agency (ESA)

Student researcher

Dates: January 2007 – June 2007

Main activities

Research and development of a wavelet-based signal processing system for image reconstruction of the AER detector (IMSE).

Institution and professors

Prof. Begona Acha and prof. Carmen Serrano. Department of Signal processing and communications. University of Sevilla, (Spain)

Course

Dates: September 2004

Title

New nano-structured materials and nano-technology

Principal subjects covered

Quimics and physics principles of nano-structured materials, use for data storage and communications

Institution

International University of Andalucia (UNIA), Sevilla (Spain)

Lectures and academical collaborations

Lecture

Dates: September 2010 – December 2010

Subject

Artificial Vision. Master in Computer Vision and Applications (MIIACS)

I was in charge of the laboratories, providing explanation, supervision and examination of the practical assignments of the subject.

Institution

University of Girona (Spain).

Collaboration

Dates: February 2011

Topic

First Lego League (FLL) competition

The FLL is an european competition sponsored by LEGO company, addressed to high schools. The aim is to build and program an autonomous robot able to accomplish different tasks previously set. I was member of the jury during the contest that was organised in Girona for the national selection step.

Institution

University of Girona

Technical knowledge

Languages

Mother tongue: spanish

Other languages

Understanding

Speaking

Writing

European level (*)

Listening

Reading

Spoken interaction

Spoken production

Catalan

C2

C2

C2

C2

C2

English

C2

C2

C2

C2

C2

French

C2

C1

B1

B1

B2

German

A1

A2

A1

A1

A1

Italian

B2

B2

A2

A2

A2

(*) Common European Framework of Reference for Languages

Programming languages

MATLAB, C/C++, JAVA, Visual Basic, PHP, SQL

AutoCad, SolidEdge, SmartSketch

Cadence, Winspice, Microwind, Microcap, Labview.

Assembler language, Motorola 6810, Motorola HC11, TMS320

C/C++ libraries

OpenCV

Social skills and competences

Fast adaptation to work in multicultural environments gained through my study experiences abroad

Organisational skills and competences

Properly autonomous work, practical view of problems and good solving skills gained through active participation on several projects .

Control, scheduling, innovation and design of technological processes

Hobbies

Sports: triathlete. Also running, hiking, climbing.

Music: piano player.

Awards and grants

PhD mobility grant. Spanish Science Ministry. Nov 2011 – (March 2012)

PhD mobility grant. Spanish Science Ministry. June 2010 – October 2010

PhD candidate grant (FPU). Spanish Science Ministry. Sept 2008 – (June 2012)

Student grant for Erasmus Mundus MsC. Fundacio LaCaixa. October 2007- June 2009

Traineeship grant. IAC. June 2007-October 2007

Research grant. Spanish Science Ministry. January 2007- June 2007

Traineeship grant. Spanish Science Ministry. July 2006-October 2006

Reference contacts

Prof. Joaquim Salvi (PhD supervisor): qsalvi@silver.udg.edu

Prof. Munther Gdeisat (collaborator): M.A.Gdeisat@ljmu.ac.uk

Prof. Umberto Castellani (collaborator): umberto.castellani@univr.it

Prof. Fabrice Meriadeau (VIBOT professor): fabrice.meriadeau@u-bourgogne.fr

Prof. Josep Forest (employer): jforest@aqsense.com

Publications

Journals

[1] J. Salvi, S. Fernandez, T. Pribanic, "A sate of the art in structured light patterns for surface profilometry", Pattern Recognition, 34, 2666—2680, 2010.

[3] S. Fernandez, M. Gdeisat, J. Salvi, D. Burton, "Automatic window size selection in windowed Fourier Transform for 3D reconstruction using adapted mother wavelets profilometry", Optics Communication, 284(12), pp 2797-2807, 2011.

[4] S. Fernandez and J. Salvi. One-shot absolute pattern for dense reconstruction using DeBruijn coding and WFT. Submitted to Image and Vision Computing.

[7] S. Fernandez, D. Fofi, J. Salvi and J. Batlle. Projector-camera calibration using a planar-based model . Submitted to Optical Engineering Letters.

Conferences

[2] S. Fernandez, J. Salvi and T. Pribanic. Absolute Phase Mapping for One-shot Dense Pattern Projection. PROCAMS'2010, IEEE Workshop on Projector-Camera Systems, in conjunction with IEEE International Conference on Computer Vision and Pattern Recognition, Article number 5543483, Pages 64-71, San Francisco (USA) June 18, 2010.