TY - GEN
T1 - Animation techniques for chain-coded objects
AU - Maeder, Anthony J.
PY - 1990/12/1
Y1 - 1990/12/1
N2 - The animation of two-dimensional objects in a 2-D planar environment is discussed. The use of chain codes as a boundary representation for 2-D objects undergoing animation is shown to be practical for several typical transformations. Various methods for implementing the transformations are described. Quantized methods transform groups of chain code elements into other groups, while incremental methods construct the transformed chain code element by element. The low cost of quantized methods, which rely on table lookup and minimal arithmetic, are weighed against the increased accuracy offered by incremental methods, which maintain error indicators to ensure minimal differences between ideal and generated chain codes. Methods for scaling, rotation, and elastic deformation of objects based solely on chain code elements are discussed.
AB - The animation of two-dimensional objects in a 2-D planar environment is discussed. The use of chain codes as a boundary representation for 2-D objects undergoing animation is shown to be practical for several typical transformations. Various methods for implementing the transformations are described. Quantized methods transform groups of chain code elements into other groups, while incremental methods construct the transformed chain code element by element. The low cost of quantized methods, which rely on table lookup and minimal arithmetic, are weighed against the increased accuracy offered by incremental methods, which maintain error indicators to ensure minimal differences between ideal and generated chain codes. Methods for scaling, rotation, and elastic deformation of objects based solely on chain code elements are discussed.
UR - http://www.scopus.com/inward/record.url?scp=0025548591&partnerID=8YFLogxK
U2 - 10.1109/VISUAL.1990.146366
DO - 10.1109/VISUAL.1990.146366
M3 - Conference contribution
AN - SCOPUS:0025548591
SN - 0818620838
T3 - Proc First 90 IEEE Conf Visualization Visualization 90
SP - 67
EP - 73
BT - Proc First 90 IEEE Conf Visualization Visualization 90
PB - Publ by IEEE
T2 - Proceedings of the First 1990 IEEE Conference on Visualization - Visualization '90
Y2 - 23 October 1990 through 26 October 1990
ER -