The Entire Egg
The following animations are mpegs encoded from images rendered within Data Explorer. They are of lower resolution and some of the colors will differ slightly from the originals. As a result, these images lack the detail and brilliance of the animations as rendered by Data Explorer and the contents of the egg are more difficult to analyze on-line. However, they do serve to present a rough idea of the overall shape of the egg, the different material densities within the egg, the original images, and the process used to generate the data for the visualization.
The Entire Egg This animation presents the egg in its entirety. (It is not this color by nature. I just thought the bronze color was kind of snazzy.) The visualization does not distinguish between the shell and other petrified material; it presents the entire body of the egg.
The Shell and Internal Matter
HIGH RESOLUTION 400 x 386
LOW RESOLUTION 200 x 193
Color is used very carefully in this animation. Unfortunately, as mentionned above, the colors used in the mpeg will vary slightly from those produced by Data Explorer and the image contains less detail due to the reduction in image size. In blue/grey is the shell (all other petrified material has been filtered out). I have placed a yellow ellipsoid around those pieces of shell/bone that lie inside the egg to make it easier to distinguish between which pieces of shell are on the front, the back, and the interior of the egg. This ellipsoid is used in the next animation to mathematically specify the region which contains only that shell which has settled inside the egg. The distinct circular ridges along the exterior of the shell appear as a result of inconsistencies in shell thickness from image to image. These inconsistencies occur because of the original difference in image brightness (as can be seen in the animation titled 'Brightness Differences' below).
Shell and Bone? This animation presents those pieces of shell and bone that lie within the egg. They are the pieces that were previously (in the animation of shell above) located inside of the yellow ellipsoid. The image is rotating counterclockwise with respect to the top of the egg, the same direction that the shell animation moves in. (Sometimes your eyes plays tricks on you and the animation will appear to be moving in the clockwise direction.)
The Originals
This animation presents all 68 of the original CT-scan images. They were transfered from photo negatives to kodak paper, cut, scanned, and cropped to a standard size.
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HISTORY OF THE PROJECT
PALEONTOLOGY
THE PROCESS
IMAGING
3D ANIMATIONS
CONCLUSIONS
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