Summary
In this paper, authors intended to bring traditional paper&pen pipeline to user interfaces particularly in design software applications. Their approach consists of three phases:
Approximation; fits lines and curves to a given set of noisy pixel data. Paper talks about how they combined speed and curvature data for corner finding.
Beautification; modifies the approximation and makes it more visually pleasing.
Basic Recognition; Recognizes the basic primitives such as circle, rectangle, triangle etc.
The system helped users to draw beautified shapes only by freehand, without the need to switch between different design tools (ie line tool, rectangle tool, circle tool)
Discussion
In my understanding, this paper serves as a good starting point for scholars outside the field. It covers most of the major aspects in sketch recognition and also introduces common problems in the field.
I agree, this is a very good introductory paper. Particularly to set the difference between gesture based recognizers and the free sketch approach. Corner finding is a good example of what you mention about the common problems mentioned in this paper.
ReplyDelete