Paul W Truitt

US Patent:

7433532, Oct 7, 2008

Filed:

May 1, 2003

Appl. No.:

10/428320

Inventors:

Paul Wiley Truitt - Albuquerque NM, US
Peter Soliz - Albuquerque NM, US

Assignee:

Kestrel Corporation - Albuquerque NM

International Classification:

G06K 9/40

US Classification:

382254, 382251

Abstract:

An enhanced entropy camera provides enhanced image quality by utilizing a custom analog-to-digital conversion function. The analog-to-digital conversion occurs according to a custom non-linear quantization function that provides enhanced entropy in the digitized image, yet avoids the harsh artifacts that tend to arise in images quantized according to a maximum entropy function. A plurality of custom non-linear functions are made available for selection depending upon imaging conditions, such as light intensity, pigmentation of the retina, or the part of the retina being imaged. Each of the plural non-linear quantization function comprises a distinct non-linear look up table for each of plural bands (e. g. , red, green, and blue color channels).

US Patent:

7587097, Sep 8, 2009

Filed:

Mar 17, 2008

Appl. No.:

12/050029

Inventors:

Paul Wiley Truitt - Albuquerque NM, US
Peter Soliz - Albuquerque NM, US

Assignee:

Kestrel Corporation - Albuquerque NM

International Classification:

G06K 9/40
G06K 9/54

US Classification:

382254, 382307

Abstract:

An enhanced entropy camera provides enhanced image quality by utilizing a custom analog-to-digital conversion function. The analog-to-digital conversion occurs according to a custom non-linear quantization function that provides enhanced entropy in the digitized image, yet avoids the harsh artifacts that tend to arise in images quantized according to a maximum entropy function. A plurality of custom non-linear functions are made available for selection depending upon imaging conditions, such as light intensity, pigmentation of the retina, or the part of the retina being imaged. Each of the plural non-linear quantization function comprises a distinct non-linear look up table for each of plural bands (e. g. , red, green, and blue color channels).

US Patent:

20040085542, May 6, 2004

Filed:

Aug 29, 2003

Appl. No.:

10/651491

Inventors:

Peter Soliz - Albuquerque NM, US
Leonard Otten - Placitas NM, US
Paul Truitt - Albuquerque NM, US

International Classification:

G01B009/02

US Classification:

356/456000

Abstract:

An ophthalmic instrument (for obtaining high resolution, wide field of area hyperspectral retinal images for various sized eyes) includes a fundus retinal imager, (which includes optics for illuminating and imaging the retina of the eye); apparatus for generating a real time image of the area being imaged and the location of the hyperspectral region of interest; a high efficiency spatially modulated common path Fourier transform hyperspectral imager, a high resolution detector optically coupled to the hyperspectral and fundus imager optics; and a computer (which is connected to the real time scene imager, the illumination source, and the high resolution camera) including an algorithm for recovery and calibration of the hyperspectral images.