In this paper, we point out that the grouping of strokes has to take into account the understanding of regions. However, the understanding of regions is influenced by the interpretation of strokes. We solve this chicken-or-the-egg problem with an iterative cyclic approach, and simplify the rough sketch.

Xueting Liu, The Chinese University of Hong Kong
Tien-Tsin Wong, The Chinese University of Hong Kong
Pheng-Ann Heng, The Chinese University of Hong Kong