Search results for "relato"
showing 10 items of 61 documents
Multiple incoherent 2D optical correlator
1991
Abstract A nonconventional setup, based on the Lau effect, is employed for implementing a lensless version of an incoherent object-space correlator of 2D signals with compact support. Experimental results are also shown.
Experimental multichannel recognition capability of polychromatic objects using optical correlators
1990
Polychromatic object recognition by multichannel correlation is experimentally achieved. Model objects whose shape changes with the wavelength of the illumination beam were used. Highpass matched filters were employed. The results confirm previous numerical simulations 1.
Single-output color pattern recognition using a fractional correlator
1997
A novel method for performing color image pattern recogni- tion using a fractional correlator (FC) is proposed. The input plane is illuminated with three different coherent sources of wavelengths corre- sponding to RGB (red, green, and blue) colors. The output plane pro- vides a single output peak, which is a result of an incoherent addition between the three correlations obtained per each color. By using the fractional correlator, which is a partially space variant correlator, we achieve space-variance-controlled color pattern recognition. The use of the three-color illumination can drastically increase the discrimination ability of the suggested correlator. © 1997 Society of Photo-Optical…
Phase joint transform sequential correlator for nonlinear binary correlations
2005
We study the performance of nonlinear optical correlations using a joint transform correlator that operates in phase-only spatial light modulation at input joint transform plane. Amplitude input nonlinear optical time sequential correlations have shown better discrimination and noise robustness than conventional linear correlations. Those nonlinear correlations are based on decomposing the reference and the target into binary slices and to add the contribution of all linear correlations between them. Those correlations can be easily implemented using a conventional joint transform correlator. However, the system has poor efficiency and low cross-correlation peak intensity, mainly because of…
Target localization in the three-dimensional space by wavelength multiplexing.
2002
A method to localize a target in the three-dimensional space is presented. Each different position of the target on the depth axis produces, when captured with a CCD camera, an image of a different size on its sensor plane. The size of this image depends only on the distance between the target and the camera. The use of a white light optical correlator that gives us a different response depending on the scale of the input image permits us to know the depth position of the particular target. The obtained results demonstrate the utility of the newly proposed method.
El ‘relato maravilloso’ como expresión mítica de la presencia o ausencia divina
2020
El relato maravilloso constituye un recurso eficaz que el mito proporciona a las sociedades antiguas para articular y dar explicación a la relación del hombre con la naturaleza y a la presencia o ausencia de la protección divina. The ‘wonderful story ’constitutes an effective resource that myth provides to ancient societies to articulate and explain man’s relationship with nature and the presence or absence of divine protection.
Representación escolar de los espacios rurales: una investigación didáctica mediante métodos mixtos
2021
Los espacios rurales son objeto de representación histórica desde un relato homogéneo que no ha sido cuestionado en la geografía escolar y afecta a las explicaciones que realiza el alumnado de Educación Secundaria y Bachillerato. La teoría de las representaciones sociales y su relación con el espacio subjetivo permiten comprender las concepciones escolares del alumnado de diez centros escolares de la provincia de Valencia (España) acerca de los espacios rurales. Mediante un enfoque dual (estructural y procesual) que se acompaña de técnicas cualitativas y cuantitativas aplicadas al campo de la didáctica de las ciencias sociales se pretende diagnosticar los elementos que forman la cosmovisión…
Multiple Matched Spatial Filter Performed With Nonsymmetrical Fourier Transformers
1987
MULTIPLE MATCHED SPATIAL FILTER PERFORMED WITH NONSYMMETRICAL FOURIER TRANSFORMERSCARLOS FERREIRA and CARMEN VAZQUEZDepartamento de Optica. Universitat de Valencia.C/ Dr. Moliner, 50. 46100 Burjassot, Spain.1. INTRODUCTIONClassical matched spatial filters (CMSF) have been successfully employed for optical pattern recog-nition. To detect different signals, multiple matched spatial filters can be synthesized and several me-thods to perform the filters have been developed. Based on the sensitivity to input orientation of CMSF,we proposed a filter [1] where the signals to be detected were rotated by different angles when recordingthe hologram. Thus, the recognition of a signal is only achieved …
La funzione riflessiva nelle organizzazioni. La capacità di mentalizzare come fattore di protezione del rischio stress lavoro-correlato
2012
Academic Workload: quando il prof va in sovraccarico
2016
La valutazione dello stress lavoro-correlato consiste probabilmente in una delle migliori occasioni per favorire lo sviluppo delle organizzazioni in direzione di un migliore riequilibrio tra gli obiettivi delle stesse e i bisogni di benessere dei lavoratori che le abitano. In Italia questa occasione di sviluppo, dalla attuazione del D.lgs. 81 del 2008, in effetti stenta un po' a prendere forma, soprattutto a causa di una certa ritrosia, da parte delle organizzazioni lavorative, a voler affrontare i cosiddetti rischi psicosociali che una valutazione approfondita consentirebbe di far emergere con chiarezza. Sono molti gli accademici che negli ultimi anni hanno prestato il loro contributo scie…