Measurement of wave-front aberration in a small telescope remote imaging system using scene-based wave-front sensing

Patent metadata

Field	Value
Publication number	US-8995787-B2
Application number	US-201313828963-A
Country	US
Kind code	B2
Filing date	Mar 14, 2013
Priority date	Mar 14, 2013
Publication date	Mar 31, 2015
Grant date	Mar 31, 2015

Abstract

Reference-free compensated imaging makes an estimation of the Fourier phase of a series of images of a target. The Fourier magnitude of the series of images is obtained by dividing the power spectral density of the series of images by an estimate of the power spectral density of atmospheric turbulence from a series of scene based wave front sensor (SBWFS) measurements of the target. A high-resolution image of the target is recovered from the Fourier phase and the Fourier magnitude.

First claim

We claim:

1. A method, comprising:
acquiring a series of target images by observing a target through time as the atmosphere changes and imaging said target onto a camera to produce said series of target images;
acquiring a series of scene based wave front sensor (SBWFS) measurements by observing said target through time as the atmosphere changes and imaging said target onto a scene based wave front sensor to produce said series of SBWFS measurements;
executing the following st…

Assignees

• L Livermore Nat Security Llc

Inventors

• Poyneer Lisa A
• Bauman Brian J

Classifications

• G06T5/003 Primary

  Physics · mapped topic

• G06T3/4053

  Physics · mapped topic

• G06T5/10

  Physics · mapped topic

• G06T5/73 Primary

  Physics · mapped topic