FIGS. 4A-E thus illustrate examples of applying a computer animation model to image data in accordance with embodiments described herein. In FIGS. 4B and 4C, the visible output of the model is the geometric shape which adjusts the boundaries 428 around the frames using control point 427. In FIGS. 4D and 4E, the visible output of the model is the movement of eyebrow images as part of a motion image, with the eyebrow areas used as control point. While these two examples illustrate computer animation models in accordance with embodiments described herein, it will be apparent that many other examples are possible. For example, any portion of a face or a body can be selected as a control point and animated. In some embodiments, an entire body can be animated. In one example, a fully body image can be used to generate a two-dimensional “puppet” from the image, with interconnected parts having control points with movements limited by the connections between the parts, and movements for each control point set as described below. Further, other objects besides faces and bodies can be animated. An image of a tree can be analyzed to identify control points within the trunk and at branches, and used to animate movement of the tree. An image of a chair can similarly be animated using control points.
