Development and evaluation of a head controlled human-computer interface with mouse functions for physically disabled users / Desenvolvimento e avaliação de uma interface homem-computador, com as funções de um "mouse", controlada pelo movimento da cabeça para uso em pessoas com deficiências físicas

AUTOR(ES)

Cesar Augusto Martins Pereira

DATA DE PUBLICAÇÃO

2009

RESUMO

The objectives of this study were to develop a head controlled pointer device with mouse functions and compare its performance when operated in absolute versus relative (joystick like) modes by ten quadriplegic subjects and ten people without neuromuscular impairment. The device was composed of a video camera, a computer program and a reflective paper target attached to a cap which was then placed on the user´s head. Most of the measured parameters revealed a significant difference between the control modes, favouring the absolute one, for both studied groups. The developed head pointer adequately emulates the computer cursor displacement, with the absolute control mode being functionally more efficient than the relative control mode in this study.

ASSUNTO(S)

tetraplegia quadriplegia avaliação de sistemas de computação computer peripherals processamento de imagem assistida por computador análise e desempenho de tarefas periféricos de computador image processing computer-assisted computer systems task performance and analysis

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