The role of grouping in sketched diagram recognition
Amirhossein Ghodrati, Rachel Blagojevic, Hans W. Guesgen, Stephen Marsland, Beryl Plimmer · 2018
An early step in bottom-up diagram recognition systems is grouping ink strokes into shapes. This paper gives an overview of the key literature on automatic grouping techniques in sketch recognition. In addition, we identify the major challenges in grouping ink into identifiable shapes, discuss the common solutions to these challenges based on current research, and highlight areas for future work.