Title
Assessment Criteria for 2D Shape Transformations in Animation
Abstract
The assessment of 2D shape transformations (or morphing) for animation is a difficult task because it is a multi-dimensional problem. Existing morphing techniques pay most attention to shape information, interactive control and mathematical simplicity. This paper shows that it is not enough to use shape information only and we should consider other factors such as structure, dynamics, timing etc. The paper also shows that an overall objective assessment of morphing is impossible because factors such as timing are related to subjective judgement, yet local objective assessment criteria, e.g. based on shape, are available. We propose using ``area preservation'' as the shape criterion for the 2D case as an acceptable approximation to ``volume preservation'' in reality, and use it to establish cases in which a number of existing techniques give clearly incorrect results. The possibility of deriving objective assessment criteria for dynamics simulations and timing under certain conditions is discussed in the paper.
Year
DOI
Venue
1997
10.1109/CA.1997.601049
CA
Keywords
Field
DocType
timing etc.,shape information,morphing technique,shape transformations,shape criterion,dynamics simulation,objective assessment criterion,assessment criteria,area preservation,local objective assessment criterion,shape transformation,overall objective assessment,structure,skeleton,morphing,animation,structural dynamics,computer animation,assessment,mathematical morphology,interpolation
Computer vision,Morphing,Engineering drawing,Mathematical morphology,Computer science,Interpolation,Judgement,Interactive control,Artificial intelligence,Animation,Computer animation,Shape transformation
Conference
ISSN
ISBN
Citations 
1087-4844
0-8186-7984-0
0
PageRank 
References 
Authors
0.34
8
2
Name
Order
Citations
PageRank
Jinhui Yu111216.83
John W. Patterson27713.49