Steven Michael Currie

US Patent:

20120072080, Mar 22, 2012

Filed:

Oct 17, 2011

Appl. No.:

13/274808

Inventors:

OLIVER JEROMIN - HOLLAND MI, US
STEVEN CURRIE - GRAND HAVEN MI, US
GREGORY S. BUSH - GRAND RAPIDS MI, US
ERIC J. WALSTRA - GRAND RAPIDS MI, US
JOSEPH S. STAM - HOLLAND MI, US
TIMOTHY S. CORNELL - BEAVERTON OR, US

International Classification:

G06F 7/00

US Classification:

701 49

Abstract:

An image acquisition and processing system includes an image sensor and one or more processors that are configured to receive at least a portion of at least one image from the image sensor. The dynamic aim of the image sensor is configured as a function of at least one feature extracted from at least a portion of an image. To accomplish the task, the system utilizes a series of adaptive thresholds used in parallel comparators to determine whether or not a pixel in a given image scene falls on the edge of a given lane line on a road. The location of the lane lines are then used to determine the scene vanishing point, which ideally will be co-located at the optical scene center. If they are not in agreement, the pixel data set being processed can be adjusted to accommodate for any disagreement.

US Patent:

61041882, Aug 15, 2000

Filed:

Oct 13, 1998

Appl. No.:

9/170419

Inventors:

Jonathan Darrel Coker - Rochester MN
Steven Michael Currie - Rochester MN
Richard Leo Galbraith - Rochester MN
Donald Earl Vosberg - Rochester MN

Assignee:

International Business Machines Corporation - Armonk NY

International Classification:

G01R 3312
G01N 2782
G11B 2736

US Classification:

324212

Abstract:

A method and apparatus are provided for detecting surface defects in a direct access storage device. Disk data readback sample values are converted to gain error values based upon an identified difference from predefined ideal data values. An error signal accumulator accumulates a summed value of error signals for a current sample and a predetermined number of past samples. Each sequential accumulator summed value is compared with a predetermined threshold value. An error output is generated responsive to each sequential accumulator summed value greater than or equal to the predetermined threshold value, the error output identifying the disk surface defect.