| 摘要 |
<p>The invention concerns a method and an electronic device for recognising characters manually traced on an input zone (10) comprising a plurality of sensors (15) each capable of being activated by a finger or a tracing instrument (13). The method consists in comparing the manual ink trace of a character (100) produced on the input zone with an assembly of characters of a predetermined set of characters. The invention is characterised in that each character of the set of characters is represented by at least a predetermined model representing a way by which said character can be traced, and a model representing the manner of production by which the manual tracing of the character (100) has been produced on the input zone. The models comprise at least topological parameters representing the topology of the character, namely, in particular: the number of strokes (A, B, C, D) used for tracing the character; the one- or two-dimensional type of each of said strokes (A, B, C, D); and the composition of each stroke of two-dimensional type, namely the number of segments (A1, A2, B1, B2, ) forming the stroke and the rectilinear or curved character of each segment. The models further comprise, as the case may be, geometrical parameters (ζ, ζ1, ζ2,; α) representing the evolution of the angular orientation of the tracing of the segment and of the geometrical parameters (P0, P1, P2) representing the position of the stroke on the input zone.</p> |
