System, method, and apparatus for triggering recognition of a handwritten shape

摘要

A technique that uses repetitive and reliably recognizable parts of handwriting, during digital handwriting data entry, to trigger recognition of digital ink and to repurpose handwriting task area properties. In one example embodiment, this is achieved by drawing one or more delayed strokes of a desired sub-word unit using a stylus on a touch screen. An associated data of the drawn one or more strokes is inputted via the touch screen into a handwriting recognition engine. A first trigger stroke in the drawn one or more strokes that can be used to trigger the sub-word unit recognition by the handwriting recognition engine is then determined. The sub-word unit recognition is then triggered for the drawn one or more strokes based on the determined first trigger stroke by the handwriting recognition engine.

主权项

1. A method comprising:
drawing one or more strokes of a desired shape using a stylus on a touch screen, wherein one of the drawn one or more strokes is a head-line stroke and is a last drawn stroke of the desired shape; dynamically inputting an associated data of the one or more strokes via the touch screen into a handwriting recognition engine; computing stroke recognition characteristics of each of the drawn one or more strokes with reference to a horizontal reference line, wherein the stroke recognition characteristics are selected from the group comprising aspect ratio and slope; determining a trigger stroke in the drawn one or more strokes of the desired shape that can be used to trigger shape recognition based as a function of the computed stroke recognition characteristics of each of the drawn one or more strokes, wherein the trigger stroke is the head-line stroke which is drawn substantially parallel to the horizontal reference line; and triggering shape recognition for the desired shape by the handwriting recognition engine upon determining the trigger stroke.