Publication: Diseño e implementación de una ayuda electrónica para pacientes con baja visión periférica (I)
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2015-07
Defense date
2015-07-08
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Abstract
El principal objetivo del proyecto es crear un sistema de procesamiento de imágenes de un tamaño reducido, capaz de enviar la información de los contornos y las profundidades del entorno a personas con baja visión periférica a través de unas gafas de realidad virtual, creando para ello un sistema que satisfaga dichas necesidades con el menor coste posible.
Se van a separar el cálculo de distancias y el cálculo de bordes como dos bloques independientes, desarrollando así dos Trabajos Fin de Grado diferentes. En esta memoria en concreto se tratará el cálculo de los contornos incluyendo: El diseño de los algoritmos y su implementación en un sistema de bajo coste.
Por tanto, tras un diagnóstico realizado con un programa que se desarrolla en la siguiente memoria, se localizará la zona óptima o remanente de visión del paciente. Para ello no se seguirán métodos médicos de diagnóstico, sino que será el propio paciente el que elegirá esa zona.
En esa zona se enviará a través de las micropantallas de las gafas la imagen de los contornos, en el color que el paciente seleccione, del entorno que rodea al paciente en tiempo real. Esa imagen será capturada por una cámara situada en las gafas.
El sistema de procesamiento que se encargará de transformar las imágenes capturadas por la cámara y calcular los bordes de todos los objetos representados en dichas imágenes para después trasladarlas a las gafas, será de un tamaño reducido capaz de entrar en un bolsillo. En este proyecto se valorarán varias alternativas, buscando así la que mejores características tenga.
De esta manera se tendrá un sistema de bajo presupuesto, el cual podrá dar información del entorno a personas que debido a diversas afecciones han perdido parte de su visión periférica y por tanto han visto reducido parte de su visión, su resto visual.
The main objective of the project consists of creating an small-sized image processing system. This system is intended to be able to send information about the edges and depths of the environment to people with low peripheral vision through virtual reality glasses, by creating a system that meets these needs at the lowest possible cost. The calculation of the distance and the calculation of the edges have been divided into two different sections. As a result, two different End-of-Degree Projects have been developed. This report specifically addresses the calculation of the edges, including the design of the algorithms and their implementation on a low-cost system. Therefore, the patient’s optimal zone of vision or residual vision will be located after performing a diagnosis with a software which is developed in the following report. For this purpose, medical diagnostic methods should not be followed: the patient himself will choose this zone. In this specific zone, the image of the edges which describe the patient’s surroundings will be sent in real time. This image, whose color will be the patient’s choice, will be sent through the microscreens of the glasses and will be captured by a camera located in the glasses. The processing system will transform the images captured by the camera and calculate the edges of all the objects represented in these images. In addition, the system, which will be poket-sized, will transfer these images to the camera. Several alternatives will be assessed along this project in order to find the one with the best features. This way, a low-budget system able to provide people with information about the environment and surroundings will be developed. The system focuses on people who suffer from different visual impairments and have lost part of their peripheral vision. For this reason, they have experienced a reduction on their residual vision.
The main objective of the project consists of creating an small-sized image processing system. This system is intended to be able to send information about the edges and depths of the environment to people with low peripheral vision through virtual reality glasses, by creating a system that meets these needs at the lowest possible cost. The calculation of the distance and the calculation of the edges have been divided into two different sections. As a result, two different End-of-Degree Projects have been developed. This report specifically addresses the calculation of the edges, including the design of the algorithms and their implementation on a low-cost system. Therefore, the patient’s optimal zone of vision or residual vision will be located after performing a diagnosis with a software which is developed in the following report. For this purpose, medical diagnostic methods should not be followed: the patient himself will choose this zone. In this specific zone, the image of the edges which describe the patient’s surroundings will be sent in real time. This image, whose color will be the patient’s choice, will be sent through the microscreens of the glasses and will be captured by a camera located in the glasses. The processing system will transform the images captured by the camera and calculate the edges of all the objects represented in these images. In addition, the system, which will be poket-sized, will transfer these images to the camera. Several alternatives will be assessed along this project in order to find the one with the best features. This way, a low-budget system able to provide people with information about the environment and surroundings will be developed. The system focuses on people who suffer from different visual impairments and have lost part of their peripheral vision. For this reason, they have experienced a reduction on their residual vision.
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Keywords
Proceso de imágenes, Algoritmos, Accesibilidad, Personas con discapacidad