Remote text input using handwriting
First Claim
Patent Images
1. A method for user input, comprising:
- capturing a sequence of positions of at least a part of a body, including a hand, of a user of a computerized system, independently of any object held by or attached to the hand, while the hand delineates textual characters by moving freely in a 3D space;
processing the positions to extract a trajectory of motion of the hand; and
analyzing features of the trajectory in order to identify the characters delineated by the hand.
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Abstract
A method for user input includes capturing a sequence of positions of at least a part of a body, including a hand, of a user of a computerized system, independently of any object held by or attached to the hand, while the hand delineates textual characters by moving freely in a 3D space. The positions are processed to extract a trajectory of motion of the hand. Features of the trajectory are analyzed in order to identify the characters delineated by the hand.
104 Citations
21 Claims
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1. A method for user input, comprising:
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capturing a sequence of positions of at least a part of a body, including a hand, of a user of a computerized system, independently of any object held by or attached to the hand, while the hand delineates textual characters by moving freely in a 3D space; processing the positions to extract a trajectory of motion of the hand; and analyzing features of the trajectory in order to identify the characters delineated by the hand. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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8. User interface apparatus, comprising:
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a sensing device, which is configured to capture a sequence of positions of at least a part of a body, including a hand, of a user of the apparatus, independently of any object held by or attached to the hand, while the hand delineates textual characters by moving freely in a 3D space; and a processor, which is configured to process the positions to extract a trajectory of motion of the hand, and to analyze features of the trajectory in order to identify the characters delineated by the hand. - View Dependent Claims (9, 10, 11, 12, 13, 14)
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- 15. A computer software product, comprising a computer-readable medium in which program instructions are stored, which instructions, when read by a computer, cause the computer to identify a sequence of positions of at least a part of a body, including a hand, of a user of the computer, independently of any object held by or attached to the hand, while the hand delineates textual characters by moving freely in a 3D space, to process the positions to extract a trajectory of motion of the hand, and to analyze features of the trajectory in order to identify the characters delineated by the hand.
Specification