Method/system for estimating the orientation of a segment of digital ink
AssigneeSilverbrook Research Pty Ltd
InventorsJonathon Leigh Napper, Paul Lapstun
Life of this patent
Estimating the term…
Abstract
The invention provides a method/system for estimating the orientation of a segment of digital ink using pen orientation information. In one form, the invention is a method of estimating the orientation of a segment of digital ink, the method including the steps of: measuring the azimuth of the pen at a sampling rate during writer generation of the segment of digital ink; and estimating the orientation of the segment of digital ink using the measured azimuth of the pen at sampled points.
Claims16
A method of estimating the orientation of a segment of digital ink, the method including the steps of:
- (1) measuring the azimuth of the pen at a sampling rate during writer generation of the segment of digital ink;
- and
- (2) estimating the orientation of the segment of digital ink using the measured azimuth of the pen at sampled points.
A pen-based computing system for estimating the orientation of a segment of digital ink, the system including a pen-based computing pen to input digital ink, and a processor adapted to estimate the orientation of a segment of digital ink by measuring the azimuth of the pen at a sampling rate during writer generation of the segment of digital ink, and estimating the orientation of the segment of digital ink using the measured azimuth of the pen at sampled points.
A pen-based computing system for estimating the orientation of a segment of digital ink, the system including:
- (1) a pen-based computing pen to input digital ink;
- (4) a storage unit to store a handwriting model;
- (5) a processor, the processor being adapted to:
- (a) retrieve the handwriting model;
- (b) receive a measurement of the azimuth of the pen at a sampling rate during writer generation of the segment of digital ink;
- and
- (c) estimate the orientation of the segment of digital ink by modifying the measured azimuth of the pen at sampled points using the handwriting model.
Dependencies are inferred from the claim text.