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7.4: Machine Vision Passive Touch Technology for Interactive Displays
Author(s) -
Morrison Gerald,
Singh Manvinder,
Holmgren David
Publication year - 2001
Publication title -
sid symposium digest of technical papers
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.351
H-Index - 44
eISSN - 2168-0159
pISSN - 0097-966X
DOI - 10.1889/1.1831973
Subject(s) - overlay , computer science , computer graphics (images) , computer vision , row , pointer (user interface) , artificial intelligence , object (grammar) , computer hardware , database , programming language
A novel machine vision touch screen overlay for flat panel, curved, or projected displays has been developed. The touch screen uses CMOS cameras in the corners of the overlay to recognize the presence of a pointer object. The CMOS cameras are configured to produce an image that is 640 columns by 20 rows. With this configuration, the overlay can determine when and where a hover or touch contact has been initiated.