|
PROJECTS:
Grupo de
Visión. Aplicaciones en Biomedicina y Modelos de Visión
Humana.
Grupos de Excelencia
Científica de la Comunidad Valenciana. Grupos 04/08
Funded by
|
Generalitat
Valenciana
|
Institutions
|
Universitat
de València, Universitat Jaume I
|
Time period
|
2
years: 01/2004 - 12/2005
|
Researchers
|
Leader:
Guillermo Ayala. Number of researchers: 17
|
VISTA researchers
|
Jesús
Malo, Juan Gutiérrez, Jose Rovira, Yolanda Navarro
|
Funds
|
26000
euros
|
Goal
|
Support
of the research activities of the group. (VI(S)TA) is the subgroup
devoted to the development of computational models of the human visual
function and its applications to image processing.
|
Results
(VISTA subgroup)
|
|
|
Modelos
visuales-estadísticos de representación de
imágenes y sus aplicaciones.
TIC-2003-01504
Funded by
|
CICYT-FEDER
Ministerio de Ciencia y Tecnología
|
Institutions
|
Universidad
de Granada, Universitat de València, CIDA
|
Time period
|
3
years: 11/2003 - 11/2006
|
Researchers
|
Leader:
Javier Portilla. Number of researchers: 7
|
VISTA researchers
|
Jesús
Malo, Juan Gutiérrez, Yolanda Navarro
|
Funds
|
73560
euros
|
Goal
|
Development
of efficient image representations based on (1) the statistics of
natural images and (2) the current computational models of low-level
image processing in the brain. We were focused on the statistical
interpretation of V1 non-linearities and their application to image
coding.
|
Results
(VISTA subgroup)
|
- Derivation of V1
non-linearities from local-to-global ICA on natural images [Malo05b].
- Image coding using divisive
normalization in the DCT domain [Malo05a].
- Image coding using divisive
normalization in the wavelet domain [Navarro05a],[Navarro05b].
- Image coding using perceptually
weighted Support Vector Machines with linear perception models
[Gomez05].
- Image coding using Support
Vector Machines in non-linear (divisive normalization domains)
[Camps05], [Gutiérrez05b].
|
|
Aplicación
de nuevos modelos visuales-estadísticos a la restauración
de imágenes afectadas por ruido y desenfoque.
Contrato en el marco del
Programa DN 8644 de cooperación en investigación y
desarrollo de tecnologías estratégicas
Funded by
|
Ministerio
de Defensa. Centro de investigaciones de la Armada (CIDA)
|
Institutions
|
Universidad
de Granada, Universitat de València, CIDA
|
Time period
|
2
years: 12/2003 - 12/2005
|
Researchers
|
Leader:
Javier Portilla. Number of researchers: 5
|
VISTA researchers
|
Jesús
Malo, Juan Gutiérrez, Jose Rovira
|
Funds
|
90000
euros
|
Goal
|
Development
of image restoration algorithms using early vision models as an
alternative to explicit statistical models of the image.
|
Results
(VISTA subgroup)
|
- Image deblurring and denoising
algorithm with robust regularization functionals based on divisive
normalization [Gutiérrez05a].
- Matlab toolbox for
regularization-based image restoration [CIDATechReport 05].
|
|
Modelos no
gaussianos para la representación de imágenes y
secuencias. UV-AE-03-29.
Acciones Especiales del
Vicerectorado de Investigación de la Universitat de Valencia
Funded by
|
Universitat
de València
|
Institutions
|
Universitat
de València
|
Time period
|
1
year: 01/2003 - 12/2003
|
Researchers
|
Leader:
Jesús Malo. Number of researchers: 3
|
VISTA researchers
|
Jesús
Malo, Juan Gutiérrez
|
Funds
|
12000
euros
|
Goal
|
Using
early human vision models for image representation and modeling in
image restoration and image coding applications.
|
| Results |
- Image coding by simultaneous
diagonalization of covariance and perceptual metric matrix [Epifanio03].
- Image coding using efficient
inversion of divisive normalization [Malo03].
- Development of perceptually
based regularization functionals that capture higher order relations of
natural images in local frequency domains [Gutierrez03].
|
|
Diseño
desarrollo y validación de un dispositivo para la
detección temprana de anomalías visuales.
DPI2000-0116-P4-02.
Funded by
|
CICYT
Ministerio de Ciencia y Tecnología
|
Institutions
|
Universitat
de València, INDO S.A.
|
Time period
|
3
years: 01/2001 - 12/2003
|
Researchers
|
Leader:
Pascual Capilla. Number of researchers: 6
|
VISTA researchers
|
Jesús
Malo
|
Funds
|
60500
euros
|
Goal
|
Implementation
and validation of a novel campimeter based on spatiotemporal achromatic
and chromatic contrast sensitivity measures.
|
Results
(VISTA subgroup)
|
- Fast algorithm for dichromatic
perception simulation [Capilla04].
- Accurate color image
reproduction in CRT diaplays [Malo02a].
- Development of the ColorlabToolbox
for color image processing in Matlab.
|
|
Compresión
eficiente de vídeo en color mediante el análisis de
secuencias basado en representaciones de imágenes
perceptualmente significativas. TIC 1FD-97-0279.
Funded by
|
CICYT-FEDER
Ministerio de Ciencia y Tecnología
|
Institutions
|
Universitat
de València, FERMAX Electrónica S.A.E.
|
Time period
|
3
years: 01/1999 - 12/2001
|
Researchers
|
Leader:
Francesc Ferri. Number of researchers: 6
|
VISTA researchers
|
Jesús
Malo, Juan Gutiérrez
|
Funds
|
120000
euros
|
Goal
|
Using
non-linear perception models for the improvement of motion estimation
and quantizer design in motion compensation (MPEG-like) video
coders.
|
| Results |
- Development of subjective image
and video quality metrics [Pons99, Watson02].
- Improvement of H.263 motion
estimation algorithms for MPEG-4 video object segmentation [Malo00a, Malo01b].
- Analysis of the relative
relevance of motion estimation and quantizer design in motion
compensation video coders [Malo00b].
- Development of image quantizers
based on simple and advanced non-linear vision models [Malo99a, Malo00c, Malo00d].
- Video coder with perceptually
based quantization and perceptual entropy constrained motion estimation
[Malo01a].
- Integration in the Video
Quality Experts Group (VQEG) in colaboration with the NASA Vision Group.
- 2 PhD thesis [Malo99b, Epifanio02].
- 1 MSc thesis [Gutierrez99].
|
|
Desarrollo de un
sistema digital local de video comunicación para comunidades
residenciales. TIC
1FD-97-1910.
Funded by
|
CICYT-FEDER
Ministerio de Ciencia y Tecnología
|
Institutions
|
Universitat
de València, FERMAX Electrónica S.A.E.
|
Time period
|
2
years: 01/2000 - 12/2001
|
Researchers
|
Leader:
Enrique Sanchis. Number of researchers: 6
|
VISTA researchers
|
Jesús
Malo
|
Funds
|
18000
euros
|
Goal
|
Hardware
implementation of MPEG-like video coders with improved motion
estimation and error quantization
|
| Results |
- Cooperation with the R+D
deparment of FERMAX Electrónica S.A.E. for the harware
implementation of the video coding algorithms developed in the project
TIC 1FD-97-0279
- 1 PhD thesis [Soret01].
|
|
Optimización
de los algoritmos de compresión de imágenes
biomédicas mediante la utilización de parámetros
perceptuales. IVEI 96/003-035.
Funded by
|
IVEI
Generalitat Valenciana
|
Institutions
|
Universitat
de València.
|
Time period
|
2
years: 01/1997 - 12/1998
|
Researchers
|
Leader:
José Maria Artigas. Number of researchers: 3
|
VISTA researchers
|
Jesús
Malo
|
Funds
|
11000
euros
|
Goal
|
Improvement
of quantization in the JPEG image coding standard by using simple
models of achromatic and chromatic auto-masking
|
| Results |
- Computational description of
the human visual system in Gabor domains [Malo97a].
- Subjective image quality
metrics for quantizer design optimization [Malo97b].
- Improvement of JPEG color image
coding by using contrast perception non-linearities [Malo02b].
- Development of computational
color perception models for efficent color representation [Capilla98, Malo02c]
and color constancy [Verdu97].
|
|
Estimación
de movimiento e interpretación de secuencias de imágenes.
TIC 95-676-C02-01.
Funded by
|
CICYT
|
Institutions
|
Universitat
de València.
|
Time period
|
3
years: 01/1996 - 12/1998
|
Researchers
|
Leader:
Francesc Ferri. Number of researchers: 8
|
VISTA researchers
|
Jesús
Malo
|
Funds
|
60000
euros
|
Goal
|
Development
of efficient motion estimation algoritms for event detection and video
coding
|
Results
(VISTA subgroup)
|
- Multigrid locally adaptive
motion estimation algorithms [Malo98]
based on perceptually motivated
quantizers [Malo95].
- Video coder based on
spatiotemporal bit allocation of the human visual system [Malo97c].
|
|
Control objetivo
de la calidad óptica de lentes de contacto desechables durante
su periodo de utilización.
Vistakon European Research Award 94 (recipient: Jesús Malo)
Funded by
|
Johnson&Johnson
Europe
|
Institutions
|
Universitat
de València. Johnson&Johnson Europe |
Time period
|
1
years: 01/1995 - 31/1995
|
Researchers
|
Leader:
José María Artigas. Number of researchers: 2
|
VISTA researchers
|
Jesús
Malo
|
Funds
|
15000
US dollars
|
Goal
|
Using
the double-pass method for optical quality assessment of disposable
contact lenses by Modulation Transfer Function evaluation.
|
| Results |
- Implementation of the
experimental double-pass set up
for MTF evaluation.
- Determination of the standard
fluctuation of the MTF in normal observers [Lorente97].
|
|
|
|
