| Patent Number |
Title Of Patent |
Date Issued |
| 7593161 |
Apparatus and method for extended depth of field imaging |
September 22, 2009 |
| An extended depth of field is achieved by a computational imaging system that combines a multifocal imaging subsystem for producing a purposefully blurred intermediate image with a digital processing subsystem for producing a recovered image having an extended depth of field. The mul |
| 7554750 |
Imaging using a multifocal aspheric lens to obtain extended depth of field |
June 30, 2009 |
| A system for imaging with a circularly symmetric multifocal aspheric lens is provided for obtaining an extended depth of field. The system includes a camera for capturing an image of at least one object through a circularly symmetric multifocal aspheric lens to provide a blurred image, |
| 7511895 |
Apparatus and method for extended depth of field imaging |
March 31, 2009 |
| An extended depth of field is achieved by a computational imaging system that combines a multifocal imaging subsystem for producing a purposefully blurred intermediate image with a digital processing subsystem for producing a recovered image having an extended depth of field. The mul |
| 7120312 |
System for recovery of degraded images |
October 10, 2006 |
| A system for recovering degraded images captured through atmospheric turbulence, or other atmospheric inhomogeneities, such as snow, rain, smoke, fog, or underwater fluctuations, is provided having an imager for capturing through such turbulence both a degraded image of a scene having |
| 6927922 |
Imaging using a multifocal aspheric lens to obtain extended depth of field |
August 9, 2005 |
| A system for imaging with a circularly symmetric multifocal aspheric lens is provided for obtaining an extended depth of field. The system includes a camera for capturing an image of at least one object through a circularly symmetric multifocal aspheric lens to provide a blurred image, |
| 6701029 |
Ring-wedge data analysis of digital images |
March 2, 2004 |
| Computer software for and a method of calculating ring-wedge data from a digital image by performing a discrete Fourier transform of the digital image. A discrete autocorrelation, discrete cosine transform, and/or Hadamard transform is also preferably performed, together with providing |
| 6583932 |
Optical system for diffusing light |
June 24, 2003 |
| An improved optical system is provided for diffusing light uniformly over a wide angle, including, a diffractive element for diffracting light received by the system in multiple diffraction orders, and a diffusing element which diffuses the diffracted light. The diffractive element p |
| 6459818 |
System for recovery of degraded images |
October 1, 2002 |
| A system for recovering degraded images captured through atmospheric turbulence, or other atmospheric inhomogeneities, such as snow, rain, smoke, fog, or underwater fluctuations, is provided having an imager for capturing through such turbulence both a degraded image of a scene having |
| 6259561 |
Optical system for diffusing light |
July 10, 2001 |
| An improved optical system is provided for diffusing light uniformly over a wide angle, including, a diffractive element for diffracting light received by the system in multiple diffraction orders, and a diffusing element which diffuses the diffracted light. The diffractive element p |
| 5453844 |
Image data coding and compression system utilizing controlled blurring |
September 26, 1995 |
| Data representing the image of an original picture having high resolution are first acquired. The data are then processed in accordance with a blurring function, which can be a randomly distributed point spread function. Processing can be carried out either in object space or in spat |
| 4834474 |
Optical systems using volume holographic elements to provide arbitrary space-time characteristic |
May 30, 1989 |
| Optical systems, using volume holographic elements (gratings) having geometries which tailor the spatio-temporal dispersion of the optical pulses for the system. The input optical pulse is characterized by a frequency variation across the temporal profile of the pulse. The various fr |
| 4786124 |
Broad-spectrum achromatic phase shifters, phase modulators, frequency shifters, and frequency mo |
November 22, 1988 |
| Achromatic optical systems forming phase shifters and phase modulators are presented and shown to impart (temporal) phase-angle shifts in incoming waves which are independent of wavelength over extremely broad spectral ranges (achromatic or white light). Three major classes of achromatic |
| 4752130 |
Optical systems utilizing a volume transmission diffraction element to provide wavelength tuning |
June 21, 1988 |
| An optical system which provides wavelength tuning and which may be a spectrometer, monochromator or tunable laser uses a volume transmission diffraction element which is characterized by a periodic, spatial variation of refractive index or polarizability or other light transmission |
