Feature-Based Volume Metamorphosis

Video excerpts

The following MPEG movies do not capture the full quality of the morphs.

Human to orangutan morph

The human head on the left is transformed into the orangutan head on the right; the halfway morph is shown in the middle. Both volumes were obtained by CT scans. The plastic cast of the orangutan head was lent to us by John W. Rick and was CT scanned with the help of Paul F. Hemler. Three movies are available:

• The human head (892KB).
• The orangutan head (836KB).
• The morph (570KB).

Dart to X-29 morph

The dart on the left is transformed into the X-29 on the right; the halfway morph is shown in the middle. Both original volumes were obtained by scan-converting polygon meshes. Four movies are available:

• The dart (142KB).
• The X-29 (268KB).
• The morph (69KB). This morph is particularly challenging as the long wings of the X-29 must grow out of the narrow shaft of the dart. Also, this morph illustrates the correct occlusion handling of 3D morphing, in contrast to 2D morphing: the emerging X-29 wings correctly occlude the receding bottom fin of the dart.
• The fly-by (3.2MB), where the dart turns into the X-29 as it flies by the viewer. This is an example of changing the viewing and lighting parameters used to render intermediate volumes while the morph unfolds. Philippe Lacroute composed this animation sequence by rendering the intermediate volumes shown in the previous movie against a RenderMan-generated backdrop.

Lion to leopard-horse morph

The lion on the left is transformed into the leopard-horse on the right; the halfway morph is shown in the middle. Both original volumes were obtained by scan-converting polygon meshes. The lion mesh was put together by Greg Turk as part of his research on our scanner project. We used the horse mesh courtesy of Rhythm and Hues, the color added by Greg Turk using his reaction-diffusion textures. Three movies are available:

• The lion (637KB).
• The leopard-horse (925KB).
• The morph (403KB).