Centre for Sensors, Instruments and Systems Development

Universitat Politècnica de Catalunya

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Projects
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Project

Development of new techniques and advanced instrumentation for clinical evaluation of eye's optical quality and color measurement in industrial applications of high interest

Principal investigator

Jaume Pujol Ramo [+info]

Summary

The project lies in the context of two research fields of hight scientific and technological interest, visual optics and
color technology. The aim is the development of new techniques and advanced instrumentation based on
optoelectronic image capture devices.
In the visual optics field, two different developments are going to be carried out that could be implemented in a
clinical environment: a new sensor for the ocular aberrations measurement which will improve the performance
of those which are already being used and another system for the objective evaluation of the intraocular scattered
light, which does not currently exist. Their application is placed in a field of great social impact that is vision
improvement.
In the color technology field, we are going to develop advanced instrumentation in order to overcome some of the
most important limitations that the instruments for color measurements based on image sensors have. In the
same way, new instrumentation for the goniometric measurement of special colors (metallic, pearly ) or color of 3-
D objects. These instruments, which could be built as intelligent sensors in automatic production cells, will allow
us to obtain the spectral characterization and color measurement of a surface with only one register, and with a
customized spatial resolution, depending on the application, much higher than in convencional systems.
The project is focused on applied research and technological developments and the results can be of application
in many different fields of social and industrial interest such as biomedical, ophthalmic and biochemical areas,
textile, colorants, plastics and paint industries, multimedia technology etc. In the project several different
applications are included, with the collaboration of different technological institutes and companies, which are
interested in the planned results and their possible industrial implementation.

Partners

MINISTERIO DE EDUCACIÓN Y CIENCIA (MEC) [+info]

Publications

Ph.D.: , Sergio Óscar Luque: "Contribuciones a la medida objetiva de la difusión intraocular" (2009)

Ph.D.: Fernando Díaz Doutón, "Development of new instrumentation for the measurement of the optical quality of the eye." (2006)

Ph.D.: , Joan Gispets Parcerises: "Qualitat òptica i visual en usuaris de Lents de Contacte: Aplicació clínica en el cas de multifocals." (2009)

Ph.D.: , Marta de Lasarte Rigueiro: "Thorough characterization and analysis of a multispectral imaging system developed for colour measurement, de Lasarte Rigueiro, Marta (2009)" (2009)

Comunicació a congrés internacional (en anglès): "de Lasarte M., Pujol J., Arjona M., Vilaseca M.: "Influence of Colour Ranges on Colour Measurements Performed with a Colorimetric and a Multispectral Imaging Systems". Fourth European Conference on Colour in Graphics, Imaging and Vision (CGIV'08). Terrassa, Spain. Juny 2008." (2008)

Comunicació a congrés internacional (en anglès): "De Lasarte M., Pujol J., Arjona M., Vilaseca M.: "Influence of the Size of the Training Set on Colour Measurements Performed using a Multispectral Imaging System." Fourth European Conference on Colour in Graphics, Imaging and Vision (CGIV 2008). Terrassa, Espanya. Juny 2008." (2008)

Comunicació a congrés internacional (en anglès): "De Lasarte, M., Vilaseca, M., Pujol, J., Arjona, M., Martínez-Verdú, F.M., De Fez, D., Viqueira, V.: "Development of a Perceptual Colorimeter Based on a Conventional CCD Camera with more than three Color Channels". 10th Congress of the International Colour Association (AIC'05). Granada, Spain. 8-13 Maig 2005" (2005)

Comunicació a congrés internacional (en anglès): "De Lasarte, M., Vilaseca, M., Pujol, J., Arjona, M., Perales, E., De Fez, D., Martínez-Verdú, F.M., Viqueira, V.: "Influence of Technology, Color Architecture and Bit-depth of Optoelectronic Imaging Sensors used as Color Measurement Instruments". 10th Congress of the International Colour Association (AIC'05). Granada, Spain. Maig 2005" (2005)

Comunicació a congrés internacional (en anglès): "De Lasarte, M., Vilaseca, M., Pujol, J., Arjona, M.: "Color measurements with colorimetric and multispectral imaging systems".Electronic Imaging- Spectral Imaging: Eight International Symposium on Multispectral Color Science. San José (California). 2006." (2006)

Comunicació a congrés internacional (en anglès): "De Lasarte, Marta, Arjona, M., Vilaseca, M., Pujol, J.: "Development of an Optimized Flat-field Correction Algorithm for Digital Cameras." Third European Conference on Color in Graphics, Imaging and Vision (CGIV´06). Leeds, UK. Juny 2006 " (2006)

Comunicació a congrés internacional (en anglès): "Ferrero, A, Campos, J., Pons, A., Vilaseca, M., De Lasarte, M., Pujol, J., Pozo, A., Rubiño, A.M. : "Experimental Results on Integration Time-Irradiance non Equivalence on a CCD Camera". 10th Congress of the International Colour Association (AIC'05). Granada, Spain. Maig 2005" (2005)

Comunicació a congrés internacional (en anglès): "Pujol, J., De Lasarte, M., Vilaseca, M., Arjona, M.: "High Dynamic Range Multispectral System for Wide Color Gamut Measurements." European Conference on Color in Graphics, Imaging and Vision (CGIV´06). Leeds, UK. June 2006 " (2006)

Comunicació a congrés internacional (en anglès): "Pujol, J.:" Accommodation and retinal image quality". Presbyopia International. Barcelona, Espanya. Novembre 2006 " (2006)

Comunicació a congrés internacional (en anglès): "Pujol, J.:" Design of multispectral systems. Influence of the size of the training set and color ranges". Workshop on Colorimetry and color imaging. Almuñecar (Granada). Setembre 2008" (2008)

Comunicació a congrés internacional (en anglès): "Pujol, J.:"Calidad de la imagen retiniana con lentes multifocales y acomodativas". Óptica 2006. Buenos Aires (Argentina). Julio 2006. " (2006)

Comunicació a congrés internacional (en anglès): "Pujol, J.:"Medida de la calidad óptica del ojo". Óptica 2006. Buenos Aires, Argentina. Julio 2006" (2006)

Comunicació a congrés internacional (en anglès): "Vilaseca M., Mercadal, R., Pujol, J., Arjona, M., De Lasarte, M., Huertas, R., Melgosa, M., Imai, F.H.: "Measuring and Analyzing the Colour of the Iris with a Multispectral Imaging System." Fourth European Conference on Colour in Graphics, Imaging and Vision (CGIV 2008). Terrassa, Espanya. Juny 2008" (2008)

Comunicació a congrés internacional (en anglès): "Vilaseca, M., de Lasarte, M., Pujol, J., Arjona, M., Imai, F. H.: "Estimation of Human Iris Spectral Reflectance Using a Multi-Spectral Imaging System". Third European Conference on Color in Graphics, Imaging and Vision (CGIV´06). Leeds, UK. Juny 2006 " (2006)

Comunicació a congrés internacional (en anglès): "Vilaseca, M., De Lasarte, M., Pujol, J., Arjona, M., Martínez-Verdú, F.M.: "Multispectral System for the Reflectance Reconstruction and Color Visualization of Natural and Manufactured Objects in the Near-Infrared Region". 10th Congress of the International Colour Association (AIC'05). Granada, Spain. 8-13 Maig 2005" (2005)

Paper: "De Lasarte, M., Pujol, J., Arjona, M., Vilaseca, M. (2007): "Optimized algorithm for the spatial nonuniformity correction of an imaging system based on a charge-coupled device color camera". APPLIED OPTICS. Vol.40(2), P.167-174. "

Paper: "Díaz Douton, F., Pujol, J., Arjona, M., Luque, S.O. (01-08-2006): "Curvature sensor for ocular wavefront measurement". Optics Letters. Vol. 31(15), 2245-2247 "

Paper: "Díaz-Douton, Benito, A., Pujol, J., Arjona, M., Güell, J.L., Artal, P. (2006): "Comparison of the retinal image quality with Hartmann-Shack wavefront sensor and a double-pass instrument." Investigative Ophthalmology and Visual Science (IOVS). Vol.47(4), 1710-1716"

Paper: "Martínez-Verdú, F.M., Capilla, P., Luque, M.J., Pujol, J. (2006): "Concerning the Calculation of the Color Gamut in a Digital Camera". Color Research and Applications. Vol.31, 399-410. "

Paper: "Pladellorens, J., Pintó, A., Segura, J., Cadevall, C., Antó, J., Pujol, J., Vilaseca, M., Coll, J. (2008): "A device for the color measurement and detection of spots on the skin" Skin Research and Technology 2008; 14: 65–70"

Paper: "Vilaseca M., Mercadal R., Pujol J., Arjona M., de Lasarte M., Huertas R., Melgosa M., Imai FH. (2008) "Characterization of the human iris spectral reflectance with a multispectral imaging system" Volum 47 Nº30. 5622-5630"

Paper: "Vilaseca, M., Arjona, M., Pujol, J., Issolio, L., Güell, J.L. (2009): "Optical Quality of foldable monofocal intraocular lenses before and after injection. Comparative evaluation using a double-pass system." Journal of Cataract and Refractive Surgery. Vol.35, 1415-1423. USA."

Paper: "Vilaseca, M., Padilla, A., Pujol, J., Ondategui, J.C., Artal, P., Güell, J.L.(2009): "Optical quality one month after verisyse and veriflex phakic iol implantation and zeiss mel 80 lasik for myopia from 5.00 to 16.50 diopters". Journal of Refractive Surgery. Vol. 25, 689-698. USA."

Paper: "Vilaseca, M., Pujol, J., Arjona, M. (2005) "Color Visualization System for Near-Infrared Multispectral Images". Journal of Imaging Science and Technology. Volume 49, Number 3, 246-255."

Paper: "Vilaseca, M., Pujol, J., Arjona, M., De Lasarte, M. (20-06-2006): "Multispectral system for reflectance reconstruction in the near-infrared region". Applied Optics 45(18) 4241-4253. "

Patent: "Device and method for the measurement of the ocular aberrations based on a curvature sensor."

Patent: "Dispositivo y método para la medida de la difusión (scattering) ocular basado en el registro y procesado de imágenes retinianas."

Patent: "Método y sistema para la medida objectiva de la acomodación ocular."

Extranet
CD6 Centre for Sensors, Instruments and Systems Development
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