Touchless computer input device to control display cursor mark position by using stereovision input from two video cameras
First Claim
1. Computer peripheral input device to control display cursor mark position by a pointing subject comprising (a) a computer display screen (2) (b) a region (4) in the front of the said display screen surface where the pointing subject (5) is to be navigated (c) two or more video cameras (1a)-(1b) taking images of the said region (4) (d) means for calculating two projected coordinates (6) of the pointing subject (5) in the two-dimensional display screen surface space by stereovision geometry methods for a set of two or more images of the same scene taken at the same time from different view points received from the said video cameras (e) a display cursor marker or its operating system functional equivalent (3) (f) means for positioning said cursor marker (3) on the said display screen (2) at the obtained coordinates (6).
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Abstract
Computer peripheral touchless input device to control display cursor mark position by operator'"'"'s finger located in the front of the display screen surface using stereovision input from two or more video cameras aimed along the screen surface. Cursor marker follows the operator'"'"'s finger with a minimal spatial displacement providing a natural feeling of controlling marker position by the finger. The device further uses a translation velocity direction and an angular rotation speed of the finger to trigger equivalents of mouse buttons pressing and releasing events.
74 Citations
16 Claims
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1. Computer peripheral input device to control display cursor mark position by a pointing subject comprising
(a) a computer display screen (2) (b) a region (4) in the front of the said display screen surface where the pointing subject (5) is to be navigated (c) two or more video cameras (1a)-(1b) taking images of the said region (4) (d) means for calculating two projected coordinates (6) of the pointing subject (5) in the two-dimensional display screen surface space by stereovision geometry methods for a set of two or more images of the same scene taken at the same time from different view points received from the said video cameras (e) a display cursor marker or its operating system functional equivalent (3) (f) means for positioning said cursor marker (3) on the said display screen (2) at the obtained coordinates (6).
Specification