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    Personal information
    Contact information
    Candidate Profile
     Date Submitted:03-04-2012
     Last Modified:09-04-2012 (10:02)
    Job information
     Current job:Phd candidate
     Employment Term:Permanent
     Job location:Europe only
     Date available:within 3months
     Keywordscomputer vision, telecommunication

    Personal information






    Date of birth




    from July 2012



    Previous work and stages



    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


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

    Type of business or sector

    Industry. Metrology.




    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


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

    Type of business or sector





    Dates: June 2007 – October 2007


    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)


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




    Dates: July 2006 – October 2006


    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)


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

    Sevilla (Spain)





    PhD candidate

    Dates: January 2009 – (June 2012)


    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


    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


    A with honors. (3rd in promotion)



    Degree (BsC/MsC)

    Dates: October 2002 – June 2007


    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


    University of Sevilla (Spain)


    A with honors. (2nd in promotion)

    Courses and internships



    Dates: October 2011 - December 2011


    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


    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.


    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)




    Dates: September 2004


    New nano-structured materials and nano-technology

    Principal subjects covered

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


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





    Lectures and academical collaborations



    Dates: September 2010 – December 2010


    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.


    University of Girona (Spain).




    Dates: February 2011


    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.


    University of Girona

















    Technical knowledge



    Mother tongue: spanish

    Other languages





    European level (*)




    Spoken interaction

    Spoken production































































    (*) 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






    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




    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):


    Prof. Munther Gdeisat (collaborator):


    Prof. Umberto Castellani (collaborator):


    Prof. Fabrice Meriadeau (VIBOT professor):


    Prof. Josep Forest (employer):










    [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.





    [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.

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