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Quiroga Mellado, Juan Antonio ; Canabal Boutureira, Héctor ; Bernabeu Martínez, Eusebio | The Optical Society Of America | 1998-09-01An algorithm for accurately extracting the local fringe direction is presented. The algorithm estimates, in the neighborhood of n × n points, the direction of the gradient that points normal to the local fringe direction. The performance of four[...]texto impreso
Quiroga Mellado, Juan Antonio ; Martínez Antón, Juan Carlos ; Canabal Boutureira, Héctor ; Bernabeu Martínez, Eusebio ; Álvaro Labajo, M. ; Cortés Testillano, V. | SPIE--The International Society for Optical Engineering. | 2001We provide a simple solution for the particular problem of the in-service inspection of aeronautic surfaces in order to detect bumps that otherwise it is made visually and usually less reliably. Bumps and other surface defects can be a symptom o[...]texto impreso
Vázquez Moliní, Daniel ; Álvarez Fernández-Balbuena, Antonio ; Canabal Boutureira, Héctor ; Muro, Carmen ; Durmus, D ; Davis, w ; Benítez Iglesias, Antonio Jesús ; Mayorga Pinilla, Santiago | Elsevier | 2019-11The need to achieve energy efficiency standards in the lighting systems of buildings makes it necessary to optimize all aspects of them. Here, the development of a light projection system that achieves this goal by studying and modifying the spe[...]texto impreso
Quiroga Mellado, Juan Antonio ; Martínez Antón, Juan Carlos ; Canabal Boutureira, Héctor ; Bernabeu Martínez, Eusebio ; Álvaro Labajo, M. ; Cortés Testillano, V. | The Optical Society Of America | 2001-06-01We have extended the use of shadow Moiré technique to be implemented in simple curved surfaces by using a flexible grating. Dynamic visual inspection of surface micro-damages is significantly favored by the use of well adapted pliable gratings c[...]texto impreso
Martínez Matos, Óscar ; Alieva Krasheninnikova, Tatiana ; Canabal Boutureira, Héctor ; Navarrete Fernández, María de la Cruz ; Gonzalo Fonrodona, Isabel ; Herrera Fernández, José María ; Irigoyen Irigoyen, Maite ; Luis Aina, Alfredo ; Piquero Sanz, Gemma ; Rodrigo Martín Romo, José Augusto ; Sánchez Brea, Luis Miguel ; Sánchez Martín, José Antonio ; Serna Galán, Julio ; Tercero Gómez, José Luis ; Torcal Milla, Francisco José ; Vilas Prieto, José Luis ; Weigand Talavera, Rosa | 2015Se propone un cambio en la metodología docente de la asignatura Laboratorio de Física III del Grado en Física, para hacerla más dinámica y potenciar la participación e iniciativas de los estudiantes, adecuándola al espíritu de Boloniatexto impreso
Quiroga Mellado, Juan Antonio ; Canabal Boutureira, Héctor ; Bernabeu Martínez, Eusebio | The Optical Society Of America | 1998-09-10An improved moiré deflectometry phase-shifting technique is presented. A squared grating is used to multiplex the information of the deflections in two orthogonal directions in one image. This procedure avoids the need to rotate the gratings to [...]texto impreso
Martínez Antón, Juan Carlos ; Siegmann, Philip ; Sánchez Brea, Luis Miguel ; Gómez Pedrero, José Antonio ; Canabal Boutureira, Héctor ; Bernabeu Martínez, Eusebio | The International Society for Optical Engineering (SPIE) | 2001We have developed a prototype for in-line detection of surface defects in metallic wires, specially for scratches. A simple geometrical relationship between surface topography and conical reflection, permits to correlate the defects with intensi[...]texto impreso
Canabal Boutureira, Héctor ; Alonso Fernández, José ; Bernabeu Martínez, Eusebio | Spie-Soc Photo-Optical Instrumentation Engineers | 2001-11A deflectometric method for the characterization of optical systems is presented. It is based on the use of a CCD camera and a subpixel resolution algorithm for the measurement of the deflection of a laser beam that propagates through the system[...]texto impreso
Vázquez Moliní, Daniel ; Álvarez Fernández-Balbuena, Antonio ; Canabal Boutureira, Héctor ; García Botella, Ángel ; Mayorga Pinilla, Santiago ; Muro, Carmen ; Galán Castreño, Teresa | The Society of Photo-Optical Instrumentation Engineers (SPIE) | 2017Use of new of light sources based on LED technology should allow the develop of systems that combine conservation and exhibition requirements and allow to make these art goods available to the next generations according to sustainability princip[...]
