Velocity-based command recognition technology
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United States of America Patent
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Sep 8, 1998
Grant Date -
N/A
app pub date -
Nov 7, 1995
filing date -
Mar 23, 1995
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A controller provides control signals to a computer based upon the movement of a user. The controller has an optical detector for detecting and monitoring the movement of a user, particularly movement of selected body parts, and circuitry for outputting a control signal to the computer in accordance with detected movement. A vector indicative of detected movement is generated on a frame-to-frame basis using only a few representative edge pixels of the body parts. Control signals for the direction and the velocity of the movement are determined from the vector and move a graphical user interface on a display accordingly.
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