Marco Grimaldi Lopez

54483956, Sep 5, 1995

Aug 3, 1993

8/101194

Marco A. Lopez - Villa Park CA
Lawrence Scherr - Altadena CA
Neil R. Nelson - Anaheim CA

Northrop Grumman Corporation - Los Angeles CA

G02B 2608
G02B 2710
H01J 314

359224

A non-mechanically scanned optical sensor system includes a stationary sensor array having an image plane, a lens system characterized by a field of view corresponding to image of a scene viewed by the lens system, an image divider for dividing the image into plural contiguous sub-images and a device for directing each of the sub-images onto substantially the entirety of the image plane of the sensor array. The directing device in one embodiment is an array of small lenses coextensive with respective light beams of respective sub-images of an image viewed by the lens system. In another embodiment, both the image divider and the directing device are realized together as an X-Y addressable array of electrically deformable optical elements, such as silicon micro-mirrors, individually directing respective ones of the sub-images to the sensor array. In another embodiment, the image divider is a spatial light modulator having an array of optical shutters controlling respective sub-images.

58596976, Jan 12, 1999

Aug 28, 1997

8/920048

Marco Lopez - Villa Park CA
Peter E. Carnvale - Sonita AZ
Hoai X. Le - Montebello CA

Northrop Grumman Corporation - Los Angeles CA

G01J 100

356213

A system for the measurement of high bandwidth peak power pulses from laser sources. A laser pulse from a laser is directed onto the surface of a diffuser that replicates the pulse. A linear array of fiber optics of varying fiber length transmits the replicated pulses to a detector. The detector produces n pulses having a pulse width. lambda. , each separated in time by a given time delay. DELTA. t which is directly proportioned to the length of each fiber. The output of the detector is fed to a digitizing oscilloscope to produce of digitized average pulse phase output.

45306001, Jul 23, 1985

Feb 22, 1982

6/351028

Marco A. Lopez - Anaheim CA

Northrop Corporation - Hawthorne CA

G01C 308

356 5

A variable attenuator for optical transceivers such as laser rangefinders for ordnance control. A polarization rotation device, such as a mechanically rotatable half-wave plate or an electrooptic cell, operates in combination with a beam splitter polarizer to attenuate the transmitted laser beam by a continuously variable amount without further attenuating the received laser beam.

57456097, Apr 28, 1998

Jan 29, 1997

8/790126

Neil R. Nelson - Anaheim CA
Harold J. Orlando - Costa Mesa CA
Marco A. Lopez - Villa Park CA

Northrop Grumman Corporation - Los Angeles CA

G06K 940

382264

This invention is an apparatus and method that is able to accurately measure the system level modulation transfer function in the presence of fixed pattern noise from an imaging system electronics.

55066755, Apr 9, 1996

Mar 11, 1994

8/212757

Marco A. Lopez - Villa Park CA
Thomas E. Godfrey - Orange CA

Northrop Grumman Corporation - Los Angeles CA

G01B 1126
G01C 100
F41G 700
G01J 502

3561521

A method of testing a laser target designator, in which an aperture in the field of view of the laser target designator has one side facing the target image detector and the laser, a beam image detector faces an opposite side of the aperture and is aligned with the opening thereof so that the beam optical axis and the opposite side of the aperture are in a field of view of the beam image detector, both sides of the aperture being illuminated, and beam video processor obtains a test video image from the beam image detector and computes a centroid of the aperture in the test video image and a centroid of the laser beam in the test video image, the displacement of these centroids being a measure of the static error while relative movement of them during dithering of the optical path from the laser target designator is a measure of the dynamic error.

57482306, May 5, 1998

Oct 27, 1995

8/549587

Harold J. Orlando - Costa Mesa CA
Michael L. Pappas - Anaheim CA
Marco A. Lopez - Villa Park CA

Northrop Grumman Corporation - Los Angeles CA

H04N 1700
H04N 1702

348187

A system for automatically performing the Minimum Resolvable Contrast (MRC) test on an image sensor, such as a TV camera, using a digital signal processor for controlling the testing, wherein an edge response from a square aperture target edge is used to generate a Modulation Transfer Function (MTF) which, in combination with signal and noise data obtained using the square aperture target, provides an input to automated MRC (AMRC) processing equations, from which a value can be calculated for an AMRC output. Alternatively, a slit target may be substituted for the square target aperture when measuring camera MTF.

20220284703, Sep 8, 2022

Mar 4, 2022

17/687251

- Melbourne FL, US
Marco Lopez - Villa Park CA, US

G06V 10/82
G06V 10/22
G06V 10/764
G06V 10/774

A method includes receiving, from an image sensor, an image, identifying, by a first neural network, a plurality of locations-of-interest within the image, and generating, by the first neural network, a first classification label for each location-of-interest of the plurality of locations-of-interest. The method also includes extracting, from the image, a plurality of image chips derived from the plurality of locations-of-interest and generating, by a second neural network, a second classification label for each image chip of the plurality of image chips. The method further includes determining an identification of a set of targets within the image using the plurality of locations-of-interest, the first classification label for each location-of-interest of the plurality of locations-of-interest, the plurality of image chips, and the second classification label for each image chip of the plurality of image chips, and transmitting the identification of the set of targets within the image.