Summary
In this paper, the author presents a new approach to distinguishing shape from graphics in sketches. The system uses features of the gaps between the strokes, both temporally and spatially, as well as features of the strokes themselves. The results show that the use of temporal context of the strokes helps in classification of the strokes, although the use of spatial context does not prove as useful.
Discussion
Using temporal data of the start and end of the strokes is a good idea since strokes drawn in groups will usually be all of the same category. Spatial data may not be as useful for classification, but rather it may prove useful in separating groups of strokes which may be drawn quickly after each other yet are sufficiently separated in space and belong to different categories.
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