Image Metamorphosis Research Articles

Image metamorphosis with scattered feature constraints

This paper describes an image metamorphosis technique to handle scattered feature constraints specified with points, polylines, and splines. Solutions to the following three problems are presented: feature specification, warp generation, and transition control. We demonstrate the use of snakes to reduce the burden of feature specification. Next, we propose the use of multilevel free-form deformations (MFFD) to compute C/sup 2/-continuous and one-to-one mapping functions among the specified features. The resulting technique, based on B-spline approximation, is simpler and faster than previous warp generation methods. Furthermore, it produces smooth image transformations without undesirable ripples and foldovers. Finally, we simplify the MFFD algorithm to derive transition functions to control geometry and color blending. Implementation details are furnished and comparisons among various metamorphosis techniques are presented.

Artist-Sorceress: Photography and Digital Metamorphosis

This article explores the negative stereotype of the witch. The artist uses high-end computer-imaging technology to alter large format photographic images on the computer screen. She discusses the process of working in still-life photography—and specifically the tradition of the Vanitas—with computer montage techniques. A particular emphasis is placed upon the potential of computer compositing for fusing image and text, experimenting with image metamorphosis and promoting visual illusion. The artist develops a model for the witch/sorceress as a reaction against cultural stereotypes.

Digital Image Metamorphosis as a Research Tool for Paleontology

This is an exciting era to be a scientist, due to the increasing levels of technology available to us; particularly due to the advances that have been made in the field of computer science. Advances in electronic technology have made computer hardware very powerful and affordable, while advances in software design and human/computer interfaces have made computers more natural to use. Computers have been utilized in nearly every field of scientific study, permitting new levels of development in those fields that wouldn't be possible otherwise. Computer graphics are useful visualization tools that help scientists understand complex data, and convey ideas to others.

Feature-based image metamorphosis

A new technique is presented for the metamorphosis of one digital image into another. The approach gives the animator high-level control of the visual effect by providing natural feature-based specification and interaction. When used effectively, this technique can give the illusion that the photographed or computer generated subjects are transforming in a fluid, surrealistic, and often dramatic way. Comparisons with existing methods are drawn, and the advantages and disadvantages of each are examined. The new method is then extended to accommodate keyframed transformations between image sequences for motion image work. Several examples are illustrated with resulting images.