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Master's Dissertation
DOI
https://doi.org/10.11606/D.5.2009.tde-28082009-131552
Document
Author
Full name
Cesar Augusto Martins Pereira
E-mail
Institute/School/College
Knowledge Area
Date of Defense
Published
São Paulo, 2009
Supervisor
Committee
Oliveira, Reginaldo Perilo (President)
Elui, Valéria Meirelles Carril
Landim, Elcio
Title in Portuguese
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
Keywords in Portuguese
Análise e desempenho de tarefas
Avaliação de sistemas de computação
Periféricos de computador
Processamento de imagem assistida por computador
Tetraplegia
Abstract in Portuguese
Os objetivos deste trabalho foram desenvolver um dispositivo apontador, com as mesmas funções de um mouse, controlado pelo movimento da cabeça, e comparar a eficiência do dispositivo proposto, utilizando o controle do cursor do computador no modo absoluto e relativo (joystick), operado por dez indivíduos tetraplégicos e por dez indivíduos sem acometimento neuromuscular. A maioria dos parâmetros estudados apresentou diferença significativa, entre as situações de controle absoluto e relativo, para os indivíduos de ambos os grupos, evidenciando que os parâmetros medidos no modo absoluto foram melhores que os medidos no modo relativo. O dispositivo apontador emula adequadamente as funções de deslocamento do cursor, mostrando que o modo de controle absoluto é mais eficiente que o modo de controle relativo
Title in English
Development and evaluation of a head controlled human-computer interface with mouse functions for physically disabled users
Keywords in English
Computer peripherals
Computer systems
Image processing computer-assisted
Quadriplegia
Task performance and analysis
Abstract in English
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.
 
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Cesar_A_M_Pereira.pdf (8.23 Mbytes)
Publishing Date
2009-09-03
 
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