Benjamin L Buckner

US Patent:

20050036135, Feb 17, 2005

Filed:

Apr 12, 2004

Appl. No.:

10/823385

Inventors:

James Earthman - Irvine CA, US
Vladimir Markov - Irvine CA, US
James Trolinger - Costa Mesa CA, US
Derek Dunn-Rankin - Irvine CA, US
Benjamin Buckner - Irvine CA, US

International Classification:

G01N021/88

US Classification:

356237100

Abstract:

A system for quantifying surface characteristics detects and quantifies characteristics of a surface of an object. For example, the system may quantify changes in surface roughness without contacting the specimen and without requiring precise temporal or spatial stability. The system may also quantify the evolution or progression of a particular characteristic of a surface, such as a defect, a slipband, a crack, a microcrack, a pit, a damage feature, corrosion, a contour change, an impact crater, a change in residual stress, and so on. The system may include an energy source, a detector section, and a process section. The energy source transmits a source signal to the surface of the object. The source signal is specularly reflected and/or scattered by the surface to yield one or more received signals. The detector section receives the received signal and, in turn, provides a detector signal indicative of the received signal. The processor applies an algorithm to the detector signal to quantify an evolution in one or more characteristics of the surface.

US Patent:

20230077410, Mar 16, 2023

Filed:

Sep 15, 2022

Appl. No.:

17/932531

Inventors:

- Cupertino CA, US
David M. Cole - Aliso Viejo CA, US
Benjamin D. Buckner - Cupertino CA, US

International Classification:

H04N 19/167
H04N 19/16
H04N 13/161

Abstract:

Encoding an image stream may include receiving an image stream with an original image resolution; generating a plurality of copies of the image stream with the original image resolution; encoding, for each copy of the plurality of copies of the image stream, the copy of the image stream to generate an encoded copy of the image stream, wherein the encoded copy of the image stream comprises a first region having a first image resolution and a second region having a second image resolution, wherein each encoded copy of the plurality of encoded copies of the image stream has a different first region, and providing, to a playback device, at least one encoded copy of the plurality of encoded copies of the image stream.

US Patent:

20140267781, Sep 18, 2014

Filed:

Mar 12, 2013

Appl. No.:

13/796237

Inventors:

Benjamin D. Buckner - Irvine CA, US
Drew L'Esperance - Irvine CA, US

International Classification:

H04N 5/21

US Classification:

348187, 348241

Abstract:

A Schlieren imaging system can comprise a digital display configured to provide a background for Schlieren imaging, a cutoff filter onto which the background is focused, and a camera configured to image the cutoff filter and the background to facilitate Schlieren imaging. A calibration method for the Schlieren imaging system can comprise forming a pixel image on a digital display, focusing the pixel image on the cutoff filter, imaging the cutoff filter and the pixel image with a camera; and moving the pixel image with respect to the cutoff filter to align the pixel image with respect to the cutoff filter to facilitate Schlieren imaging. Thus, alignment of the Schlieren imaging system can be substantially simplified.