Publications

Publications in Web of Science (Thomson Reuters)

2016

josa_2016_1049 Colorimetric analysis of outdoor illumination across varieties of atmospheric conditions, S. Peyvandi, J. Hernández-Andrés, F.J. Olmo, J. L. Nieves and J. Romero Journal of the Optical Society of America A, vol. 33, 1049-1059 (2016) image

2015

ao_2015_D15 Outdoor scene reflectance measurements using a Bragg-grating-based hyperspectral imager, J. Eckhard, T. Eckhard, E.M. Valero, J.L. Nieves, E. Garrote Contreras, Applied Optics, vol. 54, N. 13, pp. D15-D24 (2015) image
ao_2015_B241 Adaptive exposure estimation for high dynamic range imaging applied to natural scenes and daylight skies, M.A. Martínez-Domingo, E.M. Valero, J. Hernández-Andrés, Applied Optics, vol. 54, N. 4, pp. B241-B250 (2015) image
ao_2015_B222 Recovering of weather degraded images based on RGB response ratio constancy, R. Luzón-González, J.L. Nieves, and J. Romero , Applied Optics, vol. 54, N. 4, pp. B222-B231 (2015) image

2014

ao_2014_C14 Combining Transverse Field Detectors and Color Filter Arrays to improve multispectral imaging systems, M.A. Martínez-Domingo, E.M. Valero, J. Hernández-Andrés, J. Romero and G. Langfelder, Applied Optics, vol. 53, N. 13, pp. C14-C24 (2014) image
ao_2014_709 Adaptive global training set selection for spectral estimation of printed inks using reflectance modeling, T. Eckhard, E.M. Valero, J. Hernández-Andrés, M. Schnitzlein, Applied Optics, vol. 53, N. 4, pp. 709-719 (2014) image
evaluating Evaluating a logarithmic kernel for spectral reflectance estimation - effects on model parametrization, training set size and number of sensor spectral channels, TT. Eckhard, E.M. Valero, J. Hernández-Andrés, V. Heikkinen, Journal of the Optical Society of America A, vol. 31, N.3, pp. 541-549 (2014) image
color2014 Comparative performance analysis of spectral estimation algorithms and computational optimization of a multispectral imaging system for print inspection, E.M. Valero, Y. Hu, J. Hernández-Andrés, T. Eckhard, J.L Nieves, J.Romero, M. Schnitzlein, D. Nowack, Color Research and Application, vol 39, pp. 16-27 (2014) image
ao_2014_3764 Nonrigid registration with free-form deformation model of multilevel uniform cubic B-splines: application to image registration and distortion correction of spectral image cubes, T Eckhard, J Eckhard, EM Valero, JL Nieves, Applied Optics, vol 53, pp. 3764-3772 (2014) image
optical_engineering_2014 Detailed experimental characterization of reflectance spectra of Sasakia charonda butterfly using multispectral optical imaging, JM Medina, JA Díaz, E Valero, JL Nieves, P Vukusic, Optical Engineering, vol 53, pp. 033111-033111 (2014) image
image_signal_processing_2014 Improved Spectral Density Measurement from Estimated Reflectance Data with Kernel Ridge Regression, Eckhard, T., Klammer, M., Valero, E. M., & Hernández-Andrés, J, Image and Signal Processing, ICISP 2014, LNCS 8509, pp. 79–86, (2014) image
color_2014_341 Chromatic Losses in Natural Scenes with Viewing Distance, R. Luzon-Gonzalez, S. M. C. Nascimento, O. Masuda, J. Romero, Color Research and Application, vol 39, pp. 341-346 (2014) image

2013

eurasip2013 Analysis of Colour Constancy algorithms using the Knowledge of Variation of Correlated Colour Temperature of Daylight with Solar Elevation, S. Ratnasingam, S. Collins, and J. Hernández-Andrés, EURASIP Journal on Image and Video Processing, 2013, 2013:14 image
ieee_tip2013 Generalized inverse-approach model for spectral-signal recovery, S. Peyvandi, S.H. Amirshahi, J. Hernández-Andrés, J.L Nieves, J.Romero, IEEE-TIP Transactions on Image Processing Journal, vol. 22, pp. 501-510 (2013) image
jeos_2013 Measurement of the optical transfer function using a white-dot pattern presented on a liquid-crystal display, F.A. Navas-Moya, J.L. Nieves, E.V. Valero, E. Garrote, Journal of European Optical Society, vol. 8, pp. 13029-1-13029-8 (2013) image

2012

josaa_2012_2181 Spectral Recovery of Outdoor Illumination by an Extension of the Bayesian Inverse Approach to the Gaussian Mixture Model, S. Peyvandi, S.H. Amirshahi, J. Hernández-Andrés, J.L Nieves, J.Romero, Journal of the Optical Society of America A, Vol. 29, pp. 2181–2189 (2012) image
josaa_2012_A240 Contrast edge colors under different natural illuminations, JL Nieves, S Nascimento, J Romero, Journal of the Optical Society of America A, Vol. 29, pp. A240-A246 (2012) image
oe_2012 Photometric-based recovery of illuminant-free color images using a red-green-blue digital camera, JL Nieves, C Plata, EM Valero, J Romero, Optical Engineering, Vol. 51, pp. 013201-1-013201-8 (2012) image
labial Labial teeth and gingiva color image segmentation for gingival health-state assessment, T. Eckhard, E.M. Valero, J.L. Nieves, , IS&T/ 6th European Conference on Color in Graphics, Imaging and Vision, CGIV 2012, pp. 102-107, Amsterdam (Netherlands); (2012) image

2011

soil_2011_984 Influence of natural daylight on soil-color description: assessment using a color-appearance model, M. Sánchez-Marañón, P.A. García, R. Huertas, J. Hernández-Andrés and M. Melgosa, Soil Science Society of America Journal, vol. 75, 984-993 (2011) image
josaa_2011_696 Illuminant spectrum estimation at a pixel, S. Ratnasingam and J. Hernández-Andrés, Journal of the Optical Society of America A, vol. 28, 696-703 (2011) image
josaa_2011_541 Extending “color constancy” outside the visible region, S. Ratnasingam, S. Collins, and J. Hernández-Andrés, Journal of the Optical Society of America A, vol. 28, 541-547 (2011) image
AO_2011_F112 Color changes in objects in natural scenes as a function of observation distance and weather conditions, J. Romero, R. Luzón-González, J.L. Nieves and J. Hernández-Andrés, Applied Optics, vol. 50, 112-120, (2011) image

2010

josaa_2010_2198 Optimum sensors for colour constancy in scenes illuminated by daylight, S. Ratnasingam, S. Collins, and J. Hernández-Andrés, Journal of the Optical Society of America A, vol. 27, 2198-2207 (2010) image

2009

jist_2009_0311021 Calibrating the elements of a multispectral imaging system, M.A. López-Álvarez, J. Hernández-Andrés, J. Romero, J. Campos and A. Pons, Journal of the Imaging Science and Technology, vol. 53, 031102-1-031110-10, (2009) image
ao_2009_3643 Trichromatic red-green-blue camera used for the recovery of albedo and reflectance of rough-textured surfaces under different illumination conditions, C Plata, J Luis Nieves, EM Valero, J Romero, Applied Optics, vol. 48, 3643-3653, (2009) image

2008

ao_2008_H220 Fountain rainbows, S.D. Gedzelman, J. Hernández-Andrés, Applied Optics, vol. 47, H220-H224, (2008) image
ao_2008_H128 Quantifying the “milky sky” experiment, S.D. Gedzelman, M.A. López-Álvarez, J. Hernández-Andrés and R. Greenler, Applied Optics, vol. 47, H128-H132, (2008) image
ao_2008_H182 Retrieval of the optical depth by an all-sky CCD camera, F.J. Olmo, A. Cazorla, L. Alados-Arboledas, M.A. López-Álvarez, J. Hernández-Andrés and J.Romero, Applied Optics, vol. 47, H182-H189, (2008) image
ao_2008_H31 Using a trichromatic CCD camera for spectral skylight estimation, M. A. López-Álvarez, J. Hernández-Andrés, J. Romero, F. J. Olmo, A. Cazorla and L. Alados-Arboledas, Applied Optics, vol. 47, H31-H38, (2008) image
ao_2008_4381 Developing an optimum computer-designed multispectral system comprising a monochrome CCD camera and a liquid-crystal tunable filter, M.A. López-Álvarez, J. Hernández-Andrés, J. Romero, Applied Optics, vol. 47, 4381-4390 (2008) image
ajp_2008_1137 A simple experiment to distinguish between replicated and duplicated compact discs using Fraunhofer diffraction, J. Fernández-Dorado, J. Hernández-Andrés, E.M. Valero, J. L. Nieves and J. Romero, American Journal of Physics, vol. 76, 1137-1140, (2008) image
ao_2008_3574 Unsupervised illuminant estimation from natural scenes: an rgb digital camera suffices, JL Nieves, C Plata, EM Valero, J Romero, Applied Optics, vol. 47, 3574-3584, (2008) image

2007

color_2007_284 Sensor-response-ratio constancy under changes in natural and artificial illuminants, J. Romero, D. Partal, J.L. Nieves and J. Hernández-Andrés, Color Research and Application, Vol. 32, 284-292 (2007) image
ao_2007_4144 Recovering fluorescent spectra with an RGB digital camera and color filters using different matrix factorizations, J.L. Nieves, E.M. Valero, J. Hernández-Andrés and J. Romero, Applied Optics, Vol. 46, 4144-4154 (2007) image
josaa_2007_942 Selecting algorithms, sensors and linear bases for optimum spectral recovery of skylight , M.A. López-Álvarez, J.Hernández-Andrés, E.M. Valero, J. Romero, Journal of the Optical Society of America A, vol. 24, 942-956 (2007) image
color_2007_352 Recovering Spectral Data from Natural Scenes with an RGB Digital Camera and Colored Filters, EM Valero, JL Nieves, S Nascimento, K Amano, DH Foster, Color Research and Application, Vol. 32, 352-360 (2007) image

2006

color_2006_391 Spectral sensitivity of sensors for a color-image descriptor invariant to changes in daylight conditions , J. Romero, J.Hernández-Andrés, J.L. Nieves and E.M. Valero, Color Research and Application, Vol. 31, N. 5, pp. 391-398, (2006) image
JEB_2006_789 Crepuscular and nocturnal illumination and its effects on color perception by the nocturnal hawkmoth Deilephila elpenor, S. Johnsen, A. Kelber, E. Warrant, A.M. Sweeney, E.A. Widder, R.L. Lee, Jr., and J.Hernández-Andrés, The Journal of Experimental Biology, Vol. 209, N. 5, pp. 789-800, (2006) image

2005

ao_2005_5696 Multispectral synthesis of daylight using a commercial digital CCD camera, J. L. Nieves, E.M. Valero, S.M.C. Nascimento, J.Hernández-Andrés and J. Romero, Applied Optics, Vol. 44, N. 27, pp. 5696-5703, (2005) image
ao_2005_5688 Designing a practical system for spectral imaging of skylight, M.A. Lopez-Alvarez, J. Romero, R.L. Lee, Jr. and J.Hernández-Andrés, Applied Optics, Vol. 44, N. 27, pp. 5688-5695, (2005) image
ao_2005_5712 Short-term variability of overcast brightness, R.L. Lee, Jr. and J.Hernández-Andrés, Applied Optics, Vol. 44, N. 27, pp. 5712-5722, (2005) image
ao_2005_5704 Colors of the daytime overcast sky, R.L. Lee, Jr. and J.Hernández-Andrés, Applied Optics, Vol. 44, N. 27, pp. 5704-5711, (2005) image
journal_math_2005 Group theoretical structure of spectral spaces, R. Lenz, T.H. Bui, and J.Hernández-Andrés, J. Math. Imaging and Vision, Vol. 23, N. 3, pp. 297-313, (2005) image

2004

color_2004_178 Changes in contrast thresholds with mean luminance for chromatic and luminance gratings: transition from the DeVries-Rose to Weber regions revisited, E.M. Valero, J.L. Nieves, J.Hernández-Andrés, and J.A. García, Color Research and Application, Vol. 29, N. 3, pp. 177-182, (2004) image
ao_2004_1880 Spectral-reflectance linear models for color pattern recognition, J.L. Nieves, J.Hernández-Andrés, E.M. Valero, and J. Romero, Applied Optics, Vol. 43, N. 9, pp. 1880-1891, (2004) image
josaa_2004_13 Spectral daylight recovery using only a few sensors , J.Hernández-Andrés, J.L. Nieves, E.M. Valero, and J. Romero, Journal of the Optical Society of America A, Vol. 21, N. 1, pp. 13-23, (2004) image
ajp_2004_53 Virtual tunnels and green glass: the colors of common-mirrors, R.L. Lee, Jr. and J.Hernández-Andrés, American Journal of Physics,, Vol. 72, N.1, pp. 53-59, (2004) image

2003

josaa_2003_1714 Color-signal filtering in the Fourier-frequency domain , J. Romero, E. Valero, J.Hernández-Andrés, and J.L.Nieves, Journal of the Optical Society of America A, Vol. 20, N. 9, pp. 1714-1724, (2003) image
optical_review_2003 Colour appearance of surfaces as affected by different time-varying colour-adaptation sequences , J.L. Nieves, E.M. Valero, J.Hernández-Andrés, and J. Romero, Optical Review, Vol. 10, N. 4, pp. 221-230, (2003) image
color_2003_25 Color coordinates and color appearance of objects with daylight changes, J. Romero, J.Hernández-Andrés, J.L.Nieves and J.A. Garcia, Color Research and Application, Vol. 28, N. 1, pp. 25-35, (2003) image
ao_2003_458 Color and luminance asymmetries in the clear sky , J.Hernández-Andrés, R.L. Lee, Jr. and J. Romero, Applied Optics, Vol. 42, N. 3, pp. 458-464, (2003) image
ao_2003_445 Measuring and modeling twilight's purple light, R.L. Lee, Jr. and J.Hernández-Andrés, Applied Optics, Vol. 42, N. 3, pp. 445-457, (2003) image

2002

displays_2002_213 Spectral-reflectance function recovery for improved colour-constancy experiments, J.L. Nieves, F. Pérez-Ocón, J.Hernández-Andrés and J. Romero, Displays, Vol. 23, N. 5, pp. 213-222, (2002) image
ajp_2002_684 Fizeau fringes at home, J.Hernández-Andrés, E. Valero, J.L.Nieves and J. Romero, American Journal of Physics, Vol. 70, N. 7, pp. 684-688, (2002) image

2001

josaa_2001_1325 Color and spectral analysis of daylight in southern Europe, J.Hernández-Andrés, J. Romero, J.L. Nieves and R.L. Lee, Jr., Journal of the Optical Society of America A, Vol. 18, N. 6, pp. 1325-1335, (2001) image
josaa_2001_412 Colorimetric and spectroradiometric characteristics of narrow-field-of-view clear fisheye skylight in Granada, Spain, J.Hernández-Andrés, J. Romero and R.L. Lee, Jr., Journal of the Optical Society of America A, Vol. 18, N. 2, pp. 412-420, (2001) image
PNAS_2001 Parallel detection of violations of color constancy, D.H. Foster, S.M.C. Nascimento, K. Amano, L. Arend, K.J. Linnell, J.L. Nieves, S. Plet, and J.S. Foster, Proceedings of the National Academy of Sciences, Vol. 98, N. 14, pp. 8151-8156, (2001) image

2000

ao_1999_5703 Stochastic independence of color-vision mechanisms confirmed by a subthreshold summation paradigm, J.A. García, J.L. Nieves, E. Valero, J. Romero Journal of the Optical Society of America A, Vol. 17, pp. 1485-1488 (2000) image

1999

ao_1999_5703 Calculating correlated color temperatures across the entire gamut of daylight and skylight chromaticities, J.Hernández-Andrés, R.L. Lee, Jr., J. Romero Applied Optics, Vol. 38, N. 27, pp. 5703-5709, (1999) image

1998

color_1998_39 Linear bases for spectral reflectance functions of acrylic paints, A.García-Beltrán, J.L.Nieves, J.Hernández-Andrés, J.Romero Color Research and Application, Vol. 23, N. 1, pp. 39-45, (1998) image
ao_1998_971 Testing linear models on spectral daylight measurements, J.Hernández-Andrés, J.Romero, A.García-Beltrán, J.L.Nieves Applied Optics, Vol. 37, N. 6, pp. 971-977, (1998) image
joptics_1998_339 Measurements of sensitivity to simulated chromatic frequencies for normal and dichromatic observers, E Valero, JA Garcia, JL Nieves, J Romero Journal of Optics, Vol. 29, pp. 339-344, (1998) image

1997

josaa_1997_1007 Linear bases for representation of natural and artificial illuminants, J. Romero, A. García-Beltrán, J. Hernández-Andrés Journal of the Optical Society of America A, Vol. 14, N. 5, pp. 1007-1014, (1997) image
joptics_1997_190 Measurements of the spectral modulation sensitivity function for two normal observers with CRT monitors, J.Romero, J.A.García, E.Valero, J.L.Nieves Journal of Optics, Vol. 28, pp. 190-198, (1997) image