Analysis of “Fluid Sketches: Continuous Recognition and Morphing of Simple Hand-Drawn Shapes”
Comments Made Elsewhere:
Summary:
Authors seek to introduce a new “paradigm” for sketching in that recognition for simple shapes occurs while sketching and the sketch is actually fitted before the pen movement is even done. Uses least squares fitting to simple shapes.
Created an equation that is a function of current trajectory of the point, the fit to an ideal curve of a particular shape class, and the current time and time of the point’s drawing. This function is fitted to the limited domain of simple shapes that the author has (circles, rectangles, etc.). Fitting to the different types of shapes is covered. The author goes into great detail of the implementation for these functions.
Discussion:
I like the idea of fluid sketching, that it would “snap” to its ideal shape as the user is in the process of drawing, but the author admits that it’s hard to apply to more complex shapes and sometimes context is needed.
I could see this being really useful as a stage in teaching drawing using sketch recognition. However, I ended up reading this paper over like three hours with a nap and many interruptions inbetween…so didn’t get as much as out of it as I should have.