John R Meckley

US Patent:

40500373, Sep 20, 1977

Filed:

Jun 10, 1976

Appl. No.:

5/694606

Inventors:

C. Harry Knowles - Mount Laurel NJ
John R. Meckley - Mount Laurel NJ
Charles A. Naylor - Sewell NJ

Assignee:

Metrologic Instruments, Inc. - Bellmawr NJ

International Classification:

H01S 3086

US Classification:

331 945D

Abstract:

A laser tube is rigidly mounted within a cylindrical metallic housing, and end rings are attached thereto. Each end ring has an opening for passage of the beam, and a plurality of radially disposed openings. Inside the housing, a smaller adjustment ring is provided, and outside the end rings are reference rings adapted to receive lenses, filters, or the like. Screws engage and penetrate the outer ring, pass freely through the end ring, and engage the inner ring. The outer and inner rings are movably adjustable relative to the housing axis and the laser beam, whereby optical apparatus attached to the outer ring may be positioned precisely relative to the laser beam.

US Patent:

52610128, Nov 9, 1993

Filed:

May 11, 1992

Appl. No.:

7/881108

Inventors:

Robert M. Hardy - Scotia NY
James E. Wheeler - Schenectady NY
John R. Meckley - Voorhees NJ

Assignee:

General Electric Company - Syracuse NY

International Classification:

G06K 944

US Classification:

382 55

Abstract:

Image data is subjected to a thinning process so as to derive a medial axis for each image. Boolean image data is reduced to lines and/or dots, each line generally being a centroid line of an image. The thinning process uses a change look-up table which is addressed using values from pixels in the neighborhood of a particular pixel which is the target for possible change. Pixels in the neighborhood which are to be evaluated are given a weight by use of a weight look-up table and the weight of the pixel is multiplied by the value of the pixel. Alternately, the weight of the pixel may be added to the pixel value. The pixels in the neighborhood of a target pixel (i. e. , pixel which is being evaluated for possible removal) have their weights and values taken into account by a summation of the results of the multiplication (or addition) performed for each pixel so as to provide an address used to address a change look-up table which supplies an output indicative of change in the target pixel. The thinning is accomplished by a floating point processor using a pipelined procedure.

US Patent:

50621424, Oct 29, 1991

Filed:

Dec 14, 1990

Appl. No.:

7/627453

Inventors:

John R. Meckley - Voorhees NJ

Assignee:

General Electric Company - Moorestown NJ

International Classification:

G06K 956

US Classification:

382 27

Abstract:

The medial axis representation of an image stored in an input memory is created in an output memory using only a moving 3-pixel by 3-pixel window to "view" the stored image. The medial axis contains no breaks.

US Patent:

53095200, May 3, 1994

Filed:

Dec 16, 1991

Appl. No.:

7/809111

Inventors:

John R. Meckley - Voorhees NJ

Assignee:

General Electric Co. - Morrestown NJ

International Classification:

G06K 936
G06K 964
G06K 932
G06K 1500

US Classification:

382 41

Abstract:

A recursive Radon video transform processor, for detecting signal responses from objects to be recognized, generates a special manifold of the response data for Radon transformation of the stored data before operation thereon by a subsequent enhancement process, prior to display or other utilization. Each Cartesian data point contributes to multiple Radon transforms, so that the recursive Radon transform video implementation only processes the newest and oldest lines of data to update the transform for a given sliding window in the data manifold. For a data line of fixed length. rho. , and with each of a set of N separate angular subprocessors operating, the pixel X value of the first and the last data rows are offset by a window size (w=x* tan. theta. sub. i), where. theta. sub. i is the transform angle for a particular subprocessor, as determined by a desired resolution, so that window size variations are implemented by a programmable change in time delay.