Capturing hand motion
First Claim
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1. Apparatus comprising a portable electronic device, a digital camera associated with the portable electronic device, and software configured to run on the portable electronic device and to derive handwriting and control information from hand motion of a writing instrument in the vicinity of the digital camera.
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Abstract
A portable electronic device, a digital camera associated with the portable electronic device, and software configured to run on the portable electronic device and to derive handwriting and control information from hand motion of a writing instrument in the vicinity of the digital camera.
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Citations
41 Claims
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1. Apparatus comprising
a portable electronic device, a digital camera associated with the portable electronic device, and software configured to run on the portable electronic device and to derive handwriting and control information from hand motion of a writing instrument in the vicinity of the digital camera.
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27. A method comprising
exposing a sensor of a digital camera to a writing instrument that is being subjected to hand motion, and in a device associated with the digital camera, processing the data to infer handwriting and/or control information based on the hand motion.
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41. A method comprising
using a two-dimensional sensor in a digital camera to permit subpixel calculations of a position of a writing instrument that is in the field of view of the camera, averaging lines, and applying an algorithm to derive a final position from the averaged lines.
Specification