NDLI: Animating images with drawings

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Animating images with drawings

Content Provider	ACM Digital Library
Author	Litwinowicz, Peter Williams, Lance
Abstract	The work described here extends the power of 2D animation with a form of texture mapping conveniently controlled by line drawings. By tracing points, line segments, spline curves, or filled regions on an image, the animator defines features which can be used to animate the image. Animations of the control features deform the image smoothly. This development is in the tradition of “skeleton”-based animation, and “feature”-based image metamorphosis. By employing numerics developed in the computer vision community for rapid visual surface estimation, several important advantages are realized. Skeletons are generalized to include curved “bones,” the interpolating surface is better behaved, the expense of computing the animation is decoupled from the number of features in the drawing, and arbitrary holes or cuts in the interpolated surface can be accommodated. The same general scattered data interpolation technique is applied to the problem of mapping animation from one image and set of features to another, generalizing the prescriptive power of animated sequences and encouraging reuse of animated motion.
Starting Page	409
Ending Page	412
Page Count	4
File Format	PDF PS / EPS
ISBN	0897916670
DOI	10.1145/192161.192270
Language	English
Publisher	Association for Computing Machinery (ACM)
Publisher Date	1994-07-24
Publisher Place	New York
Access Restriction	Subscribed
Subject Keyword	Image warping Animation Scattered data interpolation
Content Type	Text
Resource Type	Article

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