NASA Technical Reports Server (NTRS) 20110012609: Parallel Wavefront Analysis for a 4D InterferometerReport as inadecuate




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This software provides a programming interface for automating data collection with a PhaseCam interferometer from 4D Technology, and distributing the image-processing algorithm across a cluster of general-purpose computers. Multiple instances of 4Sight (4D Technology s proprietary software) run on a networked cluster of computers. Each connects to

Author: NASA Technical Reports Server (NTRS)

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transmitted only through the rightCMBF and is blocked by the left-CMBF. This continues over other wavelength bands as well. So, it can be seen that the image sensors at the focal plane are measuring light intensities of alternately transmitted light from the two CMBFs.
At the end of one complete illumination cycle, six images will have been collected. Then the images from R1, G1, and B1 become the primary colors for the left side of the stereo image, and R2, G2, and B2 become that of the right side of the stereo image.
Two stereo images have been time-multiplexed on the same imaging chip.
This intensity data is stored as an array from which the 3D stereoscopic color image is constructed by applying processing and reconstruction algorithms. This work was done by Youngsam Bae, Harish Manohara, Victor E.
White, and Kirill V.
Shcheglov of Caltech and Hrayr Shahinian of Skull Base Institute for NASA’s Jet Propulsion Laboratory.
Further information is contained in a TSP (see page 1). In accordance with Public Law 96-517, the contractor has elected to retain title to this invention.
Inquiries concerning rights for its commercial use should be addressed to: Innovative Technology Assets Management JPL Mail Stop 202-233 4800 Oak Grove Drive Pasadena, CA 91109-8099 E-mail: iaoffice@jpl.nasa.gov Refer to NPO-47420, volume and number of this NASA Tech Briefs issue, and the page number. Early Oscillation Detection Technique for Hybrid DC-DC Converters Potential users include commercial and military power supply manufacturers, and highreliability electronic product companies. Goddard Space Flight Center, Greenbelt, Maryland Oscillation or instability is a situation that must be avoided for reliable hybrid DC-DC converters.
A real-time electronics measurement technique was developed to detect catastrophic oscillations at early stages for hybrid DC-DC converters.
It is capable of identifying lowlevel oscillation and determining the degree of the oscillation at a unique frequenc...





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