Title :
Innovative Ultrasonic Sensors-based 2D Keypad Using Chain Code Algorithm
Author :
Jo, Oon Kheng ; Yusoff, Mohd Amaluddin
Author_Institution :
Electr. & Comput. Eng. Dept., Curtin Univ., Miri, Malaysia
Abstract :
This paper describes an elegant method for recognizing the pattern of alphabets and distinguishing different points and their orientation based on two ultrasonic distance sensors. Sequence of line segments, formed by a set of different points, is determined by chain code algorithm. The result shows the simplicity of the system utilizing ultrasonic sensors, which can be developed into a new type of keypad.
Keywords :
keyboards; pattern recognition; touch sensitive screens; ultrasonic transducers; 2D keypad; chain code algorithm; line segments; pattern recognition; ultrasonic distance sensors; chain code algorithm; line pattern; ultrasonic sensor;
Conference_Titel :
Research and Development (SCOReD), 2010 IEEE Student Conference on
Conference_Location :
Putrajaya
Print_ISBN :
978-1-4244-8647-2
DOI :
10.1109/SCORED.2010.5704035
