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