Digital Ink Database Searching Using Handwriting Feature Synthesis
AssigneeSilverbrook Research Pty Ltd
InventorsJonathon Leigh Napper, Paul Lapstun
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Abstract
A method of searching a digital ink database is disclosed. The digital ink database is associated with a specific author. The method starts by receiving a computer text query from an input device. The computer text query is then mapped to a set of feature vectors using a handwriting model of that specific author. As a result, the set of feature vectors approximates features that would have been extracted had that specific author written the computer query text by hand. Finally, the set of feature vectors is used to search the digital ink database.
Claims6
A method of searching a digital ink database, the digital ink database being associated with a predetermined author, the method comprising the steps of:
- receiving a computer text query from an input device;
- mapping by a processing system the computer text query to a set of feature vectors using a handwriting model of the predetermined author, the set of feature vectors approximating features that would have been extracted had the predetermined author written the computer query text by hand;
- and
- using the set of feature vectors to search the digital ink database.
An apparatus for searching a digital ink database, the digital ink database being associated with a predetermined author, the apparatus comprising:
- an input device for receiving a computer text query;
- a processing system for mapping by the computer text query to a set of feature vectors using a handwriting model of the predetermined author, the set of feature vectors approximating features that would have been extracted had the predetermined author written the computer query text by hand, and for using the set of feature vectors to search the digital ink database;
- and
- an output device for outputting results of the search of the digital ink database.
Dependencies are inferred from the claim text.