Research
Papers. For older information click here
L.Alvarez,
P-L.Lions y J-M.Morel "Image selective smoothing and edge detection by
nonlinear diffusion (II)" SIAM J. on Numerical Analysis. Vol. 29, No.
3, pp. 845-866, 1992. (PDF)
L.Alvarez, F.Guichard,
P-L.Lions y J-M.Morel "Axioms and fundamental equations of image
processing" Arch. for Rational Mechanics, Vol. 123, No. 3 pp. 199-257,
1993 (PDF
(22 Mbytes))
L.Alvarez y L.Mazorra "Signal and image restoration using shock filters and anisotropic diffusion", SIAM J. on Numerical Analysis. Vol. 31, No. 2 pp. 590-605, 1994. (PDF)
L.Alvarez and J.Sánchez "Sobre un problema de optimización no-lineal en visión estereoscópica. Aspectos computacionales", Proceedings of CEDYA XVI, Universidad de Las Palmas de Gran Canaria, September 1.999, pp. 1357-1364 (Postcript file)
L.Alvarez, J.Esclarín, M.Lefebure and J.Sánchez "A PDE model for
computing the Optical Flow", Proceedings of CEDYA XVI, Universidad de Las
Palmas de Gran
Canaria, September 1.999, pp. 1349-1356 (Postcript
file)
L.Alvarez y J.Sánchez "Sobre algunos problemas reales en visión por
ordenador que conducen a sistemas de ecuaciones algebraicos", Proceedings
of EACA'99, Universidad de La Laguna, Tenerife, September 1.999, pp. 123-132. (Postcript
file)
L.Alvarez and J.Sánchez "Nonlinear
estimation of the 3-D geometry from two perspective views",
Preprint. (Postcript file)
L.Alvarez J.Weickert and J.Sánchez "A Scale-Space Aproach to Nonlocal Optical Flow Calculations", in ScaleSpace'99. Ed. M.Nielsen, P.Johansen, O.Olsen and J.Weickert, pp.235-246 Lectures Notes in Computer Science Nº 1682. Springer (Postcript file)
L.Alvarez R.Deriche and F.Santana "Recursivity and PDE's in Image
Processing", Cuadernos del Instituto Universitario de Ciencias y
Tecnologías Cibernéticas, Nº 0001, October 1999. Universidad de
L.Alvarez Y.Gosseau and
J.M. Morel "Scales in Natural Images and a Consequence on their Bounded
Variation Norm", to appear in ScaleSpace'
L.Alvarez J.Weickert and
J.Sánchez "Reliable Estimation of Dense Optical Flow Fields with Large
Displacements", Cuadernos del Instituto Universitario de Ciencias y
Tecnologías Cibernéticas, Nº 0002. (Postcript file) DEMO PAGE A revised version of this paper have
been published in the International Journal of Computer Vision, 39(1), pp.
41-56, 2000.
L.Alvarez, R.Deriche,
J.Sánchez and J.Weickert "Dense Disparity Map Estimation Respecting Image
Discontinuities : A PDE and Scale-Space Based Approach. INRIA technical report
Nº 3874 (Postcript file) DEMO PAGE A revised version of this paper will
be published in the special issue on partial differential equations of the
Journal of Visual Communication and Image Representation. Vol. 13, pp 3--21,
2002.
L.Alvarez, and J.Sánchez
“3-D Geometry reconstruction using a color image stereo pair and partial
differential equations” Cuadernos del Instituto Universitario de Ciencias
y Tecnologías Cibernéticas, Vol. 6, pp. 1-26, 2000 (Postcript
file) DEMO PAGE
L.Alvarez, and J.Sánchez “Reconstrucción 3-D a partir de un par
estéreo de imágenes en color utilizando ecuaciones en derivadas
parciales” X Congreso Español de Informática Gráfica, Castelló, Junio
2000.
(Postcript file) DEMO PAGE
L.Alvarez, R.Deriche,
J.Sánchez and J.Weickert "Dense Disparity Map Estimation Respecting Image
Discontinuities : A PDE and Scale-Space Based Approach. MVA2000 IAPR Workshop
on Machine Vision Applications, The
L.Alvarez, K.Krissian and A.Trujillo "Invariant Computation of Differential Characteristics in 3D images", Cuadernos del Instituto Universitario de Ciencias y Tecnologías Cibernéticas Vol 13, pp. 1-14 (P S file)
L.Alvarez, "Computer Vision and Image Processing in Environmental
Research" Cuadernos del Instituto Universitario de Ciencias y
Tecnologías Cibernéticas Vol 14, pp. 1-16 (Postcript
file). An
extended version of this paper has been published in Systems Analysis
Modelling Simulation Vol. 43 Nº 9, pp 1229-1242, 2003
L.Alvarez, A.P.Blanc, L.Mazorra and F.Santana "Geometric Flows and Global Invariant Signatures" Cuadernos del Instituto Universitario de Ciencias y Tecnologías Cibernéticas Vol 15, pp. 1-23 (Postcript file)
L.Alvarez, L.Mazorra and F.Santana "Geometric Invariant Shape Representation using Morphological Multiscale Analysis" Cuadernos del Instituto Universitario de Ciencias y Tecnologías Cibernéticas Vol 16, pp. 1-20 (Postcript file)
M.Alemán, L.Alvarez and
R.Moreno "Modified Newton Filters for Edge Orientation Estimation and
Shape Representation". Proceedings of the IASTED International Conference
SIGNAL PROCESSING, PATTERN RECOGNITION & APPLICATIONS, Rhodes, Greece, pp.
27-32, July 2001 (Postcript file)
L.Alvarez, C.Cuenca and
L.Mazorra "Morphological Corner Detection. Application to Camera
Calibration". Proceedings of the IASTED International Conference SIGNAL
PROCESSING, PATTERN RECOGNITION & APPLICATIONS, Rhodes, Greece, pp. 21-26,
July 2001
(Postcript file) (PDF file) DEMO PAGE
M.Alemán, L.Alvarez and R.Moreno "Modified Newton Filters for Edge
Orientation Estimation,
Shape Representation and Motion Analysis". Cuadernos
del Instituto Universitario de Ciencias y Tecnologías Cibernéticas Vol 17,
pp. 1-30 (Postcript file) (PDF file)
L.Alvarez y C.Cuenca "Calibración de múltiples cámaras utilizando
objetos de calibración esféricos".
CAEPIA 2001, Gijón, España,
pp. 1281-1291 (PDF file)
L.Alvarez, C.Cuenca,
L.Mazorra and F.Santana "Applications of Morphological Multiscale Analysis
to Shape Representation" First SIAM-EMS Conference "Applied
Mathematics in our Changing World" 2-6 September 2001, Berlin,
Germany (Abstract)
L.Alvarez "Análisis Multiescala de Imágenes y Ecuaciones en Derivadas Parciales" II Seminario de Análisis Matemático ULL-ULPGC, 12-13 de Septiembre de 2001, Universidad de Las Palmas de Gran Canaria (Postcript file)
L.Alvarez, A.P.Blanc,
L.Mazorra and F.Santana "Geometric Invariant Shape Representation using
Morphological Multiscale Analysis and applications to shape
representation". Cuadernos del Instituto Universitario de
Ciencias y Tecnologías Cibernéticas Vol 19, pp. 1-35, 2002 (PDF file).
A revised version of this
paper have been published in Journal of Mathematical Imaging and Vision, vol 18
(2), pp 145-168, 2003
L.Alvarez, R.Deriche,
T.Papadopoulo, J.Sánchez "Symmetrical Dense Optical Flow Estimation with
Oclussions Detection", Proceedings of ECCV 2002, Lectures Notes in
Computer Science 2350, pp 721-736 (Part I), 2002.
L.Alvarez, "Las Matemáticas y La Visión por Ordenador". Cuadernos del Instituto Universitario de Ciencias y Tecnologías Cibernéticas Vol 23, pp. 1-13, 2003 (PDF file) Publicado como capítulo del libro “Sociedad, ciencia, tecnología, y matemáticas”, pp 283-300, editado por el servicio de publicaciones de la Universidad de La Laguna, 2004.
L.Alvarez, K. Baños, C. Cuenca, J.Esclarín and J.Sánchez. "3D
Reconstruction from a vasculature tree model". Proceedings of
EuroCast 2003, Las Palmas de Gran Canaria, pp. 105-106. (PDF file). An extended version of this paper
has been published in Lecture Notes in Computer Science 2809 pp. 616-626.
M.Alemán, L.Alvarez and
R.Moreno "Frecuency analysis of contour orientation functions for shape
representation and motion analysis". Proceedings of EuroCast 2003,
Las Palmas de Gran Canaria, pp. 110-112.
L. Alvarez, C. Cuenca and
J. Sánchez "Regularization of 3D Cylindrical Surfaces". Proceedings
IbPRIA 2003, Mallorca, Spain, June 2003, Lectures Notes in Computer Science
Vol. 2652, pp 37-44. (PDF file)
L. Alvarez, C. Cuenca and
J. Sánchez "Regularizing a set of unstructured 3D points from a sequence
of stereo images". Proceedings Scale Space 2003, Isle of Skye, UK, June
2003, Lectures Notes in Computer Science Vol. 2695, pp 449-463. (PDF file)
M. Alemán and L. Alvarez,
"Texture Classification through Multiscale Orientation Histogram
Analysis". Proceedings Scale Space 2003, Isle of Skye, UK, June 2003,
Lectures Notes in Computer Science Vol. 2695, pp 479-493. (PDF
file)
L. Alvarez and I. Díaz,
"The waiting time property for parabolic problems trough the nondiffusion
of support for the stationary problems". Revista de la Real
Academia de Ciencias, Serie A : Matemáticas (RACSAM), Vol. 97 (1) , 2003, pp
83-88. (PDF file)
M. Alemán and L. Alvarez,
"Fourier analysis of orientation hystograms for texture classification
", Proceedings of the Third IASTED International Conference on
"Visualization, Imaging, and Image Processing" Benalmadena 2003, Vol.
II pp. 662-667 (PDF file)
L. Alvarez, C. Cuenca, A.Salgado and J. Sánchez, "Video Sequence
Calibration and Applications", Proceedings of the Third IASTED International
Conference on "Visualization, Imaging, and Image Processing"
Benalmadena 2003, Vol. II pp. 838-842 (PDF file)
L. Alvarez, K. Baños, C. Cuenca, J. Esclarín and J. Sánchez, "Model of
Vessels for the 3D Reconstruction", Proceedings of METMBS'03, the
International Conference on Mathematics and Engineering techniques in medicine
and biological sciences, Las Vegas, June 2003, pp. 410-416. (PDF file)
M. Alemán, P. Alemán,
L.Alvarez, J.Santana, R.Fuente and A.Trujillo, "Computational techniques
for the support of breast tumor diagnosis on ultrasound images". Cuadernos
del Instituto Universitario de Ciencias y Tecnologías Cibernéticas Vol 27,
pp. 1-12, 2003 (PDF file).
Miguel Alemán, Patricia Alemán, Luis Alvarez, José Manuel Santana, Rafael
Fuentes, Agustín Trujillo. “Computer-Aided
Measurement of Solid Breast Tumor Features on Ultrasound Images”,
Proceeding of the Workshop: Computer Vision Approaches to Medical Image
Analysis, ECCV, Praga 2004. Computer Vision and Mathematical Methods in Medical
and Biomedical Image Analysis. Lecture Notes in Computer Science 3117, pp.
353-364. Springer Verlag, Berlin Heidelberg, 2004 (PDF file).
L. Alvarez, A.Salgado and J. Sánchez, "Robust Detection and Ordering of
Ellipses on a Calibration Pattern", Cuadernos Instituto Universitario de
Ciencias y Tecnologías Cibernéticas Vol 29, pp. 1-26, 2004 (PDF
file)
L. Alvarez, L. Mazorra and F. Santana, “MultiScale Analysis and Shape
Representation”, Proceedings IWCVIA’03: International WorkShop on
Computer Vision and Image Analysis, pp. 23-28. Las Palmas de Gran Canaria,
December 2003 (PDF
file)
L. Alvarez, J. Esclarín and A. Trujillo, “A model based edge location
with subpixel precision”, Proceedings IWCVIA’03: International
WorkShop on Computer Vision and Image Analysis, pp. 29-32. Las Palmas de Gran
Canaria, December 2003 (PDF
file)
L. Alvarez,C. Cuenca, A. Salgado, J. Sánchez, “A variational approach to
3D geometry reconstruction from two or multiple views”, Proceedings
IWCVIA’03: International WorkShop on Computer Vision and Image Analysis,
pp. 79-84. Las Palmas de Gran Canaria, December 2003 (PDF
file)
L. Alvarez,C. Cuenca, A. Salgado, J. Sánchez, “AmiCam: A Video Processing
Software for Combining Real and Virtual Scenes.”, Proceedings
IWCVIA’03: International WorkShop on Computer Vision and Image Analysis,
pp. 93-99. Las Palmas de Gran Canaria, December 2003 (PDF
file)
M. Alemán and L. Alvarez, “Multiscale Analysis of Natural
Textures”, Proceedings IWCVIA’03: International WorkShop on
Computer Vision and Image Analysis, pp. 85-92. Las Palmas de Gran Canaria,
December 2003 (PDF
file)
C.A. Castaño, M.A.
Rodríguez, L. Alvarez, C.F. Westin and J.Ruiz “ Anisotropic Interpolation
of DT-MRI” Proceedings MICCAI’04 (PDF
file)
C.A. Castaño, L. Alvarez, M.A. Rodríguez and J.Ruiz “ Esquema variacional para el filtrado de imágenes médicas tensoriales” Proceedings URSI’04 (PDF file)
C.A. Castaño, L. Alvarez, M.A. Rodríguez and J.Ruiz “ Esquema variacional para el filtrado de imágenes médicas tensoriales” Proceedings URSI’04 (PDF file)
M. Alemán and L. Alvarez . “Video
Segmentation through Multiscale Texture Analysis” , Lecture Notes in
Computer Science, Springer Verlag
Miguel Alemán, Patricia Alemán, Luis Álvarez, José Manuel Santana, Rafael
Fuentes and Agustín Trujillo. “Computer-Aided
Measurement of Solid Breast Tumor Features on Ultrasound Images”.
Computer Vision and Mathematical Methods in Medical and Biomedical Image
Analysis. Lecture Notes in Computer Science 3117, pp. 353-364. Springer Verlag,
Alemán-Flores,
M., Alemán-Flores, P., Álvarez-León, L., Esteban-Sánchez, M.B., Fuentes-Pavón,
R., Santana-Montesdeoca, J.M. "Segmentation and Analysis of Breast Tumors
on Ultrasonography" Informatik Aktuell. Bildverarbeitung für die Medizin
2005. Algorithmen, Systeme, Anwendungen. Springer Verlag
Luis Alvarez,
Esther Gonzalez and Luis Mazorra "Fitting ear contour using an ovoid
model" To appear in the Proceedings of 39th IEEE International
Carnahan Conference on Security Technology to be held in Las Palmas de Gran Canaria,
M. Alemán-Flores, P. Alemán-Flores, L. Álvarez-León, M.B. Esteban-Sánchez, R. Fuentes-Pavón, J.M. Santana-Montesdeoca "Computerized ultrasound characterization of breast tumors"<> In Procs. of Computer Assisted Radiology and Surgery H.U. Lemke, K. Inamura, K. Doi, M.W. Vannier and A.G. Farman (Eds.) Elsevier International Congress Series 1281 (2005) pp. 1063-1068 (PDF file)
M. Alemán, L. Alvarez, E. Gonzalez, L. Mazorra and J. Sánchez
" Optic flow estimation in fluid images I", Cuadernos Instituto
Universitario de Ciencias y Tecnologías Cibernéticas Vol 31, pp. 1-25,
2005 (PDF file)
L. Alvarez, C. Castaño, M. García, L. Mazorra, A. Salgado and J. Sánchez " Optic flow estimation in fluid images II", Cuadernos Instituto Universitario de Ciencias y Tecnologías Cibernéticas Vol 31, pp. 1-35, 2005 (PDF file)
El Digital ULPGC. "Una Imagen en números" (html file)
La Provincia. "Visión de última generación" 26 de diciembre del 2005. (pdf file)
L. Alvarez. "Matemáticas y Visión por Ordenador"
MATEMATICALIA :.revista digital de divulgación matemática de la real sociedad
matemática española I.S.S.N.: 1699-7700. Vol 1 N. 2 Junio 2005 (http://www.matematicalia.net/)
M. Alemán-Flores, P.
Alemán-Flores, L. Alvarez, M.B. Esteban-Sánchez, R. Fuentes-pavón and J.M.
Santana-Montesdeoca "Semiautomatic Snake-based segmentation of solid
breast nodules on ultrasonography", Lectures Notes in Computer Science,
No. 3634, pp. 467-472, EuroCast 2005, Springer Verlag, Berlin Heidelberg 2005.
L. Alvarez, C. Castaño, M.
García, K. Krissian, L. Mazorra, A. Salgado and J. Sánchez "3D Atmospheric
Cloud Structures: Processing and Visualization". CVPR 2006 (Video
Program). IEEE Computer Society Conference on Computer Vision and Pattern
Recognition.
M. Alemán-Flores, P.
Alemán-Flores, L. Alvarez, R. Fuentes-pavón and J.M. Santana-Montesdeoca
"Computer-Aided Examination of Sonographic Finding in Breast Nodules
", Imaging 2006. International Conference on Imaging Techniques in
Subatomic Physics, Astrophysics, Medicine, Biology and Industry, Estocolmo,
Suecia, June 2006.
M. Alemán-Flores, L. Alvarez and V. Caselles "Breast Nodule Ultrasound Segmentation through Texture-Based Active Contours", 14th European Conference on Mathematics for Industry (ECMI 2006). Leganés, Spain, July 2006.
L. Alvarez, C. Castaño, M.
García, K. Krissian, L. Mazorra, A. Salgado and J. Sánchez "Satellite image
analysis using PDE techniques". International Conference EARTH
SCIENCES AND MATHEMATICS, Universidad Complutense de Madrid, september
13-15, 2006
L. Alvarez and R. Sendra
"An algebraic approach to lens distortion by line rectification". Cuadernos
del Instituto Universitario de Ciencias y Tecnologías Cibernéticas, Nº 34, pp
1-6 February 2007. Universidad de
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