That scheme is efficiently implemented in a new camera system he is implementing whereby elements between lenses will change the phase of the incoming light.
In Enhanced Compressive Sensing and More, Yin Zhang wants to avoid the issue of storage of large random matrices and devises a scheme that reduces tremendously the storage count by using a kronecker/tensor product of two smaller sized random matrices.
I'll be adding those to the list of measurement matrices in the big picture page.
On a different note, James Lee has a new entry of relevance to Compressed Sensing entitled The pseudorandom subspace problem
Mark Iwen will defend his thesis on July 28th. Good luck Mark.
Here is a heartbreaker, after forty nine years in the making, NASA is probably ready to pull the plug on Gravity Probe B after the bad grade it just obtained. After four years of flight, they could not do better than the experiment using the retro-reflectors left on the Moon during the Apollo 11, 14 and 15 missions. Which brings me to another subject that came up during the L1 meeting. Somebody asked me about coded aperture cameras and their use in astronomy. The reasons they are used comes from the fact that photons outside of the visible wavelength (roughly) do not bend when going through matter like lenses. For this reason, people have been using coded aperture camera to figure out where specific event where originating in the sky. For more one can read these entries  and . In the NASA review that gave a very bad grade to Gravity Probe B, there are a number of missions that have coded aperture cameras:
1. Swift, launched in 2004, has the
Burst Alert Telescope (BAT), see the mask on the side.
8. Integral (INTErnational Gamma-Ray Astrophysics Laboratory), launched in 2002, has three coded aperture cameras:
The spectrometer (SPI), it has an hexagonal coded aperture mask.
Laurent Duval mentioned to me a call for paper on Wavelet Applications in Industrial Processing VI for the SPIE meeting in January meeting in San Diego. The important dates are:
Abstract (500 words) Due Date: 16 June 2008
Final Summary (200 words) Due Date: 17 November 2008
Manuscript Due Date: 22 December 2008
 Compressed Sensing: Thoughts on Coded Aperture and Compressed Sensing
 Compressed Sensing: Compressive Coded Aperture Superresolution Image Reconstruction, TOMBO, CASSI