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Geometric model and calibration method for a solid-state LiDAR
(Multidisciplinary Digital Publishing Institute (MDPI), 2020-05-20)
Article
Open AccessThis paper presents a novel calibration method for solid-state LiDAR devices based on a geometrical description of their scanning system, which has variable angular resolution. Determining this distortion across the entire ... -
New cost-effective sensor for the characterization of automotive headlamps by measurements in the near field
(Elsevier, 2006-12-01)
Article
Open AccessNowadays, European Normative regarding headlamp validation evaluates the photometric distribution of the source as a series of illumination values measured at a plane placed 25 m away from the light source. An innovative ... -
Micrometric noncontact profiler for optical quality surfaces
(2001-12-01)
Article
Restricted access - publisher's policyA non-contact technique for obtaining accurate profiles of optical qualitysurfaces with micrometric accuracy has been developed. The technique isbased on the Ronchi test principle, that is, on the study of the interaction ... -
Texture evaluation of automotive coatings by means of a gonio-hyperspectral imaging system based on light-emitting diodes
(Multidisciplinary Digital Publishing Institute (MDPI), 2020-03-27)
Article
Open AccessSparkle and graininess are textural effects that appear as intrinsic spatial features of coatings containing goniochromatic pigments, whereas others such as mottling are undesired outcomes. In this study, we present new ... -
Terahertz-based system for dehydration analysis of hydrogel contact lenses
(2019)
Article
Open AccessThe use of terahertz-based techniques has grown very fast since they are capable of performingevaluations at molecular level, being very suitable for the analysis of biological samples and bioma-terials such as those for ... -
An overview of lidar imaging systems for autonomous vehicles
(Multidisciplinary Digital Publishing Institute, 2019-10-01)
Article
Open AccessLidar imaging systems are one of the hottest topics in the optronics industry. The need to sense the surroundings of every autonomous vehicle has pushed forward a race dedicated to deciding the final solution to be ... -
Experimental characterization of the speckle pattern at the output of a multimode optical fiber
(2019-09-30)
Article
Open AccessSpeckle patterns produced by coherent waves interfering with each other are undesirable in many imaging applications (for example, in laser projection systems) but on the other hand, they contain useful information that ... -
Confocal flowmeter based on self-mixing interferometry for real-time velocity profiling of turbid liquids flowing in microcapillaries
(2019-08-19)
Article
Open AccessWe propose a new confocal device for flow profiling in microcapillaries. A viewfinder system is developed using a visible light microscope, allowing focusing with high precision an 830 nm Fabry-Perot laser diode on a ... -
Fast visible and extended nearinfrared multispectral fundus camera
(2019-09)
Article
Open AccessWe present a multispectral fundus camera that performs fast imaging of the ocular posterior pole in the visible and near-infrared (400 to 1300 nm) wavelengths through 15 spectral bands, using a flashlight source made of ... -
Morphological study of skin cancer lesions through a 3D scanner based on fringe projection and machine learning
(2019)
Article
Open Access -
Graininess characterization by multidimensional scaling
(2019-05-21)
Article
Open Access -
Stimulus Unpredictability in Time, Magnitude, and Direction on Accommodation
(2019-05-01)
Article
Open Access
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