Ambiente virtual para reabilitação de membros superiores utilizando visão computacional
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2012-05-02
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Universidade Federal de Goiás
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The use of computing devices used in virtual reality has been exploited to provide solutions in healthcare, specifically in functional rehabilitation. There are studies that indicate that immersion caused by the use of virtual environments in rehabilitation presents positive results on the evolution of a patient in therapy. From this information, there was motivation for this study, which aims at developing a low cost solution consisting in a virtual environment for upper limbs rehabilitation. This work describes the internal elements of the computing device and also the development of the virtual environment. The user interacts with the virtual environment through computer vision techniques, having a webcam as a data input device. Acquired images by the webcam are processed so that an object of interest may be in evidence by algorithms of image segmentation. There were analyzed five techniques of image segmentation in RGB and HSV color spaces. By the results obtained in the development environment, it wasn't possible to classify the best method of segmentation, and the performance of the methods varies according to the color of the object of interest and lighting of the external environment. The virtual environment was modeled after technical visits made in rehabilitation center supported by physiotherapists and occupational therapists. The virtual environment was tested only in research environment. Therefore it is necessary to employ the system in rehabilitation clinic in partnership with health professionals so that there is a validation of the virtual environment developed in this project in the area of rehabilitation.
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GOMIDE, Renato de Sousa. Virtual environment for upper limbs rehabilitation using computer vision. 2012. 89 f. Dissertação (Mestrado em Engenharia) - Universidade Federal de Goiás, Goiânia, 2012.