Apparatus and method for editing handwritten stroke

Abstract

A handwritten stroke data editing system comprising: a group management unit for managing group data and box data for each group, the group data representing strokes within one group, the box data representing a box that is circumscribed to each group, the group including at least one of a character group representing a handwritten character, a word group representing a handwritten word, a line group consisting of a plurality of handwritten characters and/or words, a figure group representing a handwritten figure, a gesture recognition unit for recognizing an editing area based on a gesture inputted by unit of a stylus, the stylus being furnished for the system, the input gesture being represented by the stroke data, the editing area including the stroke data; and a to-be-edited group selection unit for selecting a to-be-edited group by computing an overlapping area of the editing area and each box, the selected to-be-edited group having the overlapping area more than a predetermined ratio to an area of the box. The to-be-edited group selection unit includes: an area computing unit for computing the overlapping area of the editing area and each box; a judgment unit for judging whether the overlapping area computed by the area computing unit exceeds the predetermined ratio; and a selection unit for selecting groups whose box overlaps on the editing area more than the predetermined ratio.