Image metamorphosis with scattered feature constraints

This paper describes an image metamorphosis technique to handle scattered feature constraints specified with points, polylines, and splines. Solutions to the following three problems are presented: feature specification, warp generation, and transition control. We demonstrate the use of snakes to re...

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Bibliographic Details
Published in:IEEE transactions on visualization and computer graphics 1996-12, Vol.2 (4), p.337-354
Main Authors: Seungyong Lee, Wolberg, G., Kyung-Yong Chwa, Sung Yong Shin
Format: Article
Language:English
Subjects:
Algorithmics. Computability. Computer arithmetics
Animation
Applied sciences
Artificial intelligence
Color
Computer science
Computer science
control theory
systems
Digital images
Exact sciences and technology
Geometry
Interpolation
Pattern recognition. Digital image processing. Computational geometry
Scattering
Spline
Theoretical computing
Visual effects
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Summary:This paper describes an image metamorphosis technique to handle scattered feature constraints specified with points, polylines, and splines. Solutions to the following three problems are presented: feature specification, warp generation, and transition control. We demonstrate the use of snakes to reduce the burden of feature specification. Next, we propose the use of multilevel free-form deformations (MFFD) to compute C/sup 2/-continuous and one-to-one mapping functions among the specified features. The resulting technique, based on B-spline approximation, is simpler and faster than previous warp generation methods. Furthermore, it produces smooth image transformations without undesirable ripples and foldovers. Finally, we simplify the MFFD algorithm to derive transition functions to control geometry and color blending. Implementation details are furnished and comparisons among various metamorphosis techniques are presented.
ISSN:1077-2626
1941-0506
DOI:10.1109/2945.556502