%0 Conference Paper %1 601049 %A Yu, Jinhui %A Patterson, J.W. %B Computer Animation '97 %D 1997 %K assessment blending criteria interpolation morphing shape %P 103 -112 %R 10.1109/CA.1997.601049 %T Assessment criteria for 2D shape transformations in animation %U http://ieeexplore.ieee.org/xpl/articleDetails.jsp?tp=&arnumber=601049&contentType=Conference+Publications&searchField%3DSearch_All%26queryText%3D2d+shape+morphing %X 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 alone, 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 ldquo;area preservation rdquo; as the shape criterion for the 2D case as an acceptable approximation to ldquo;volume preservation rdquo; 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

@inproceedings{601049, 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 alone, 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 ldquo;area preservation rdquo; as the shape criterion for the 2D case as an acceptable approximation to ldquo;volume preservation rdquo; 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}, added-at = {2012-09-26T20:26:51.000+0200}, author = {Yu, Jinhui and Patterson, J.W.}, biburl = {https://www.bibsonomy.org/bibtex/22b2f459d1795e929c3a3d027f7a55bcc/rwoz}, booktitle = {Computer Animation '97}, description = {IEEE Xplore - Assessment criteria for 2D shape transformations in animation}, doi = {10.1109/CA.1997.601049}, interhash = {60b0dcee173fef48b63279adf56c2651}, intrahash = {2b2f459d1795e929c3a3d027f7a55bcc}, keywords = {assessment blending criteria interpolation morphing shape}, month = jun, pages = {103 -112}, timestamp = {2012-09-26T20:26:51.000+0200}, title = {Assessment criteria for 2D shape transformations in animation}, url = {http://ieeexplore.ieee.org/xpl/articleDetails.jsp?tp=&arnumber=601049&contentType=Conference+Publications&searchField%3DSearch_All%26queryText%3D2d+shape+morphing}, year = 1997 }