Diffraction Specific Computing
In an effort to reduce compute time and storage/transmission size of
holographic video images, the spatial imaging group has been working
on different ways of either compressing or encoding diffraction
patterns. The most dramatic savings to date have been the result of
the development by former doctoral student
Mark Lucente of the
Diffraction Specific fringe computation method.
This method uses spatial and spectral discretization in computation of
diffraction patterns for holographic images. A holographic image is
broken down into arrays of holographic elements referred to as
"hogels". Hogels are generated using additive construction techniques
rather than using mathmatically intensive interference computations,
resulting in dramatic savings in computing times allowing such things
as real-time interactive holography.
Dr. Lucente's dissertation is available as:
Some other publications on Diffraction Specific Computing:
There is also a more comprehensive list of publications
on Diffraction Specific Computing, and other projects at the Spatial
Imaging Group.
© 1995 MIT
Media Laboratory -
Spatial Imaging Group