Image-based touchscreen

Details Image-based touchscreen Image-based touchscreen

1996-09-12

1999-08-10

Wu, Xiao

Computer graphics processing and selective visual display system

Display peripheral interface input device

Touch panel

345156, G09G 500

Patent

active

059366150

ABSTRACT:
In a touch activated computer system, a display terminal displays an image on a screen of the terminal. The image includes one or more visual option buttons arranged in a predetermined pattern. Each button corresponds to a specific application program which can be executed by the system. A camera has a lens oriented to capture frames representing a scene in front of the screen. Each frame includes a plurality of regularized pixel values. The system includes an image registration subsystem for comparing the pixel values of successive frames. A particular application is selected for execution when the pixel values corresponding to that portion of the scene directly in front of a particular button differ in successive frames more than a predetermined threshold value.

REFERENCES:
patent: 4644582 (1987-02-01), Morishita et al.
patent: 4821029 (1989-04-01), Logan et al.
patent: 4851616 (1989-07-01), Langdon et al.
patent: 4873398 (1989-10-01), Hubby, Jr.
patent: 5048103 (1991-09-01), Leclerc et al.
patent: 5067015 (1991-11-01), Combridge et al.
patent: 5105186 (1992-04-01), May
patent: 5317140 (1994-05-01), Dunthorn
patent: 5376947 (1994-12-01), Kuroda
patent: 5483261 (1996-01-01), Yasutake
patent: 5677700 (1997-10-01), Sohwalba et al.
patent: 5736975 (1998-04-01), Lunetta
patent: 5736976 (1998-04-01), Cheung
patent: 5767842 (1998-06-01), Korth
"Registration of Images with Geometric Distortions," Ardeshir Goshtasby, IEEE Transactions on Geoscience and Remote Sensing, vol. 26, No. 1, Jan. 1988.

Affiliated with

Also associated with

Rating

Image-based touchscreen does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Image-based touchscreen, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Image-based touchscreen will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1124684