Paper Info
Title
Elasticurves: exploiting stroke dynamics and inertia for the real-time neatening of sketched 2D curves
Abstract
Elasticurves present a novel approach to neaten sketches in real-time, resulting in curves that combine smoothness with user-intended detail. Inspired by natural variations in stroke speed when drawing quickly or with precision, we exploit stroke dynamics to distinguish intentional fine detail from stroke noise. Combining inertia and stroke dynamics, elasticurves can be imagined as the trace of a pen attached to the user by an oscillation-free elastic band. Sketched quickly, the elasticurve spatially lags behind the stroke, smoothing over stroke detail, but catches up and matches the input stroke at slower speeds. Connectors, such as lines or circular-arcs link the evolving elasticurve to the next input point, growing the curve by a responsiveness fraction along the connector. Responsiveness is calibrated, to reflect drawing skill or device noise. Elasticurves are theoretically sound and robust to variations in stroke sampling. Practically, they neaten digital strokes in real-time while retaining the modeless and visceral feel of pen on paper.
Year
DOI
Venue
2011
10.1145/2047196.2047246
UIST
Keywords
Field
DocType
stroke detail,digital stroke,real-time neatening,device noise,intentional fine detail,stroke dynamic,input stroke,stroke speed,stroke sampling,stroke noise,user-intended detail,oscillations,real time
Computer graphics (images),Computer science,Stroke,Exploit,Smoothing,Sampling (statistics),Cable gland,Inertia,Smoothness
Conference
Citations 
PageRank 
References 
12
0.60
25
Authors
3
Name
Order
Citations
PageRank
Yannick Thiel1120.60
Karan Singh2152976.00
Ravin Balakrishnan36497403.55