Search results for "ndc"
showing 10 items of 1025 documents
<title>Electronic eye occluder with time-counting and reflection control</title>
2008
ABSTRACT In pediatric ophthalmology 2 3 % of all the children are impacted by a visual pathology amblyopia. It develops if a clear image isnt presented to the retina during an early stage of the developmen t of the visual system. A common way of treating this pathology is to cover the better-seeing eye to force the lazy eye to learn seeing. However, children are often reluctant to wear such an occluder because they are as hamed or simply because they find it inconvenient. This fact requires to find a way how to track the regi me of occlusion because results of occlus ion is a hint that the actual regime of occlusion isnt that what the optometrist has recommended. We design an electr…
Sensor Fusion Combining 3-D and 2-D for Depth Data Enhancement
2012
Time-of-Flight (ToF) cameras are known to be cost-efficient 3-D sensing systems capable of providing full scene depth information at a high frame rate. Among many other advantages, ToF cameras are able to provide distance information regardless of the illumination conditions and with no texture dependency, which makes them very suitable for computer vision and robotic applications where reliable distance measurements are required. However, the resolution of the given depth maps is far below the resolution given by standard 2-D video cameras which, indeed, restricts the use of ToF cameras in real applications such as those for safety and surveillance. In this thesis, we therefore investigate…
Blind Radio Tomography
2018
From the attenuation measurements collected by a network of spatially distributed sensors, radio tomography constructs spatial loss fields (SLFs) that quantify absorption of radiofrequency waves at each location. These SLFs can be used for interference prediction in (possibly cognitive) wireless communication networks, for environmental monitoring or intrusion detection in surveillance applications, for through-the-wall imaging, for survivor localization after earthquakes or fires, etc. The cornerstone of radio tomography is to model attenuation as the bidimensional integral of the SLF of interest scaled by a weight function. Unfortunately, existing approaches (i) rely on heuristic assumpti…
Texture analysis with statistical methods for wheat ear extraction
2007
In agronomic domain, the simplification of crop counting, necessary for yield prediction and agronomic studies, is an important project for technical institutes such as Arvalis. Although the main objective of our global project is to conceive a mobile robot for natural image acquisition directly in a field, Arvalis has proposed us first to detect by image processing the number of wheat ears in images before to count them, which will allow to obtain the first component of the yield. In this paper we compare different texture image segmentation techniques based on feature extraction by first and higher order statistical methods which have been applied on our images. The extracted features are…
A Textual and Visual Analysis of the Intrinsic Value Dimensions of Romania: Towards a Sustainable Destination Brand
2020
This work examines the projected image of Romania as an emerging tourism destination. Computed content-analysis was applied to the photos, text and video materials promoted online in Romania&rsquo
Educación artística para fomentar la investigación en cine y audiovisuales
2018
Resumen: Las tendencias actuales en Educación Artística incorporan de manera decisiva el manejo de la imagen. Fotografía, video, cine, videojuegos, TIC, y audiovisuales en general, forman parte de un entramado amplio y diverso de posibilidades de creación y difusión de las imágenes. El profesorado de educación en artes está utilizando las imágenes de diferentes formas, y lo que necesitamos es impulsar la investigación sobre estos nuevos usos de la imagen en el ámbito educativo de las artes. Cuando hablamos de imagen no nos referimos únicamente a los usos de las TIC por parte del alumnado y el profesorado, sino que estamos hablando de la posibilidad de investigar desde la propia imagen, con …
El verdadero reto de la fotografía (como arte representacional comunicativo)
2018
Abstract: I argue that authentic photography is not able to develop to the full as a communicative representational art. Photography is authentic when it is true to its self-image as the imprinting of images. For an image to be imprinted is for its content to be linked to the scene in which it originates by a chain of sufficient, mind-independent causes. Communicative representational art (in any medium: photography, painting, literature, music, etc.) is art that exploits the resources of representation to achieve artistically interesting communication of thought. The central resources of representation are content, vehicle properties, and the interplay between these two. Whereas painting a…
Protocolo técnico para la fotografía de fuentes filológicas primarias
2014
con fines documentales, proyectado para garantizar la máxima fidelidad posible al motivo original representado. Tras una descripción detallada del material necesario, seleccionado específicamente en función de las necesidades particulares de la fotografía de textos manuscritos o impresos, se desarrolla un procedimiento adaptado a las nuevas circunstancias de la fotografía digital, concebido en dos fases: la captación de la imagen en formato RAW, y su posterior edición. En este estudio se trata la primera parte, describiendo sistemáticamente, paso a paso, las decisiones técnicas relativas a los ajustes fotográficos de la toma en diferentes situaciones lumínicas, encaminadas a maximizar la ca…
ReMindCare: Una aplicación para primeros episodios psicóticos integrada en la práctica clínica diaria
2021
Objetivos: El objetivo fundamental de esta tesis es el de desarrollar e implementar un sistema de atención sanitaria e-Health (App para smartphone) en la práctica clínica diaria en una unidad de Primeros Episodios Psicóticos (PEP). Objetivos Específicos: Los objetivos específicos que se buscan conseguir mediante la implementación de este dispositivo son los siguientes: (1) mejora de la atención temprana ante posibles recaídas, (2) reducción de las visitas a los servicios de urgencias y (3) reducción de las rehospitalizaciones. Métodos: El diseño de la app se basó en dos estudios previos y un estudio piloto. Se trata de una aplicación dirigida a pacientes de la unidad PEP del Hospital Clínic…
AN INEXPENSIVE ULTRA-HIGH-SPEED PHOTOGRAPHIC TECHNIQUE
1968
Commercial Ultra-High-Speed Cameras for framing rates over 50,000 f.p.s. are very expensive and yield a small number of frames (8 to 24) per run. The single-flash technique with increasing delays gives photographs at a high framing rate over a comparatively long time and, as described here, requires no special electronic equipment except a good flash unit and a general-purpose oscilloscope.