Patents by Inventor Lawrence E. Albertelli
Lawrence E. Albertelli has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
-
Patent number: 7406196Abstract: A method and system for detecting the corners of a region in an image.Type: GrantFiled: March 19, 2004Date of Patent: July 29, 2008Assignee: Lockheed Martin CorporationInventors: Lawrence E. Albertelli, Nina Kung
-
Patent number: 7304663Abstract: Resolution of an image capture system is measured by imaging a test target having a progression of feature sizes and pitch in respective sub-fields thereof. The image captured by the imaging system is then inspected to determine a sub-field image which does not include aliasing in the form of a Moire' pattern. Inclusion of reference numerals corresponding to the sub-field image feature size and pitch allows direct reading of the resolution of the imaging system. Such a system enables fast and accurate determination of the resolution and alignment of an imaging system using an inexpensively produced test target together with an arbitrary image viewing program.Type: GrantFiled: August 4, 2005Date of Patent: December 4, 2007Assignee: Lockheed Martin CorporationInventor: Lawrence E. Albertelli
-
Patent number: 7236643Abstract: In order to render information contained in images more detectable in the presence of noise, the present invention discloses a system and method to binarize the images in the presence of noise. The method of this invention comprises the steps of applying a dynamic range reducing filter to the digitized image values, obtaining a range reduced image; applying an edge detecting filter to the range reduced image, obtaining a filtered image; and then, adaptively binarizing the digitized image utilizing the corresponding filtered image to obtain an adaptive threshold.Type: GrantFiled: March 22, 2002Date of Patent: June 26, 2007Assignee: Lockheed Martin CorporationInventors: Lawrence E. Albertelli, David L. Ii, Nina Kung
-
Patent number: 7068856Abstract: A simple and robust method for determining the orientation angle of a scanned image or the angular orientation of an object in an electronic image based on using descriptors of the image and systems that implement the method are disclosed. A system including means for acquiring the electronic image, means for determining image centroid coordinates, means for obtaining second order moments corresponding to the image, and, means for determining an orientation angle of a principal axis of the image implements the method.Type: GrantFiled: September 17, 2002Date of Patent: June 27, 2006Assignee: Lockheed Martin CorporationInventors: Lawrence E. Albertelli, David L. Ii, Nina Kung
-
Patent number: 7058240Abstract: The systems and methods of this invention provide a simple classifier suitable for real time use. The classifier adapts to changing system conditions and does not require recalculating the details of the classifier.Type: GrantFiled: October 18, 2002Date of Patent: June 6, 2006Assignee: Lockheed Martin CorporationInventors: Lawrence E. Albertelli, Charles Call, David L. Ii, Nina Kung
-
Patent number: 7051937Abstract: A system and method to binarize the bar code image in the presence of noise in order to render bar codes more detectable in the presence of noise. The method of this invention includes the steps of applying a gradient detecting filter to the bar code image, obtaining a filtered image, and then, adaptively binarizing the bar code image utilizing the corresponding filtered image to obtain an adaptive threshold. A system that implements the method is also described.Type: GrantFiled: March 22, 2002Date of Patent: May 30, 2006Assignee: Lockheed Martin CorporationInventors: Lawrence E. Albertelli, David L. Ii, Nina Kung
-
Patent number: 6992696Abstract: Resolution of an image capture system is measured by imaging a test target having a progression of feature sizes and pitch in respective sub-fields thereof. The image captured by the imaging system is then inspected to determine a sub-field image which does not include aliasing in the form of a Moire' pattern. Inclusion of reference numerals corresponding to the sub-field image feature size and pitch allows direct reading of the resolution of the imaging system. Such a system enables fast and accurate determination of the resolution and alignment of an imaging system using an inexpensively produced test target together with an arbitrary image viewing program.Type: GrantFiled: October 26, 2000Date of Patent: January 31, 2006Assignee: Lockheed Martin CorporationInventor: Lawrence E. Albertelli
-
Patent number: 6980249Abstract: Focused imaging of constant size and resolution over a wide range of distances and a wide field of view in object space is provided by a doubly telecentric catadioptric optical system including an external limiting aperture at the juncture of the focal planes of two objectives, with a large-diameter concave spherical or aspheric mirror as the primary objective, and a camera lens as the secondary objective. Constant resolution avoids rescaling of images made at different depths for machine recognition tasks such as OCR, saving computation time and cost, and increasing through-put and accuracy. For digital linescan cameras, constant resolution of the image avoids scanning objects at different line rates for different depths of objects being scanned, thus maximizing speed of the objects and, hence, throughput. The field of view is constant over the entire range of depth and is not limited by the diameter of the camera lens elements.Type: GrantFiled: April 20, 2001Date of Patent: December 27, 2005Assignee: Lockheed Martin, CorporationInventor: Lawrence E. Albertelli
-
Patent number: 6898314Abstract: A method and system of reading images. The method includes decimating an image and normalizing the decimated image. Then, rebinning grayscale pixel data associated with the decimated image and reassigning a selected range of grayscales representing a region of interest of the remapped grayscale pixel data to one while zeroing others. The method also includes labeling the connected pixels associated with the range of grayscales representing the region of interest and then extending the connected pixels through region growing using a preselected offset value. Lastly, the method includes filtering segmented regions of the connected pixels to eliminate certain candidates. The system is designed to implement the steps of the enumerated method.Type: GrantFiled: December 26, 2001Date of Patent: May 24, 2005Assignee: Lockheed Martin CorporationInventors: Nina Kung, Lawrence E. Albertelli, David L. Ii
-
Publication number: 20040076344Abstract: The systems and methods of this invention provide a simple classifier suitable for real time use. The classifier adapts to changing system conditions and does not require recalculating the details of the classifier.Type: ApplicationFiled: October 18, 2002Publication date: April 22, 2004Applicant: Lockheed Martin CorporationInventors: Lawrence E. Albertelli, Charles Call, David L. Ii, Nina Kung
-
Publication number: 20040052430Abstract: A simple and robust method for determining the orientation angle of a scanned image or the angular orientation of an object in an electronic image based on using descriptors of the image and systems that implement the method are disclosed. A system including means for acquiring the electronic image, means for determining image centroid coordinates, means for obtaining second order moments corresponding to the image, and, means for determining an orientation angle of a principal axis of the image implements the method.Type: ApplicationFiled: September 17, 2002Publication date: March 18, 2004Applicant: Lockheed Martin CorporationInventors: Lawrence E. Albertelli, David L. Ii, Nina Kung
-
Publication number: 20030179934Abstract: In order to render information contained in images more detectable in the presence of noise, the present invention discloses a system and method to binarize the images in the presence of noise. The method of this invention comprises the steps of applying a dynamic range reducing filter to the digitized image values, obtaining a range reduced image; applying an edge detecting filter to the range reduced image, obtaining a filtered image; and then, adaptively binarizing the digitized image utilizing the corresponding filtered image to obtain an adaptive threshold.Type: ApplicationFiled: March 22, 2002Publication date: September 25, 2003Applicant: Lockheed Martin CorporationInventors: Lawrence E. Albertelli, David L. Ii, Nina Kung
-
Publication number: 20030178490Abstract: In order to render bar codes more detectable in the presence of noise, the present invention discloses a system and method to binarize the bar code image in the presence of noise. The method of this invention comprises the steps of applying of a gradient detecting filter to the bar code image, obtaining a filtered image, and then, adaptively binarizing the bar code image utilizing the corresponding filtered image to obtain an adaptive threshold.Type: ApplicationFiled: March 22, 2002Publication date: September 25, 2003Applicant: Lockheed Martin CorporationInventors: Lawrence E. Albertelli, David L. Ii, Nina Kung
-
Publication number: 20030118236Abstract: A method and system of reading images. The method includes decimating an image and normalizing the decimated image. Then, rebinning grayscale pixel data associated with the decimated image and reassigning a selected range of grayscales representing a region of interest of the remapped grayscale pixel data to one while zeroing others. The method also includes labeling the connected pixels associated with the range of grayscales representing the region of interest and then extending the connected pixels through region growing using a preselected offset value. Lastly, the method includes filtering segmented regions of the connected pixels to eliminate certain candidates. The system is designed to implement the steps of the enumerated method.Type: ApplicationFiled: December 26, 2001Publication date: June 26, 2003Inventors: Nina Kung, Lawrence E. Albertelli, David L. Ii
-
Patent number: 6484066Abstract: An image lift tunnel scanner uses extended depth of field cameras in order to view objects of various shapes and sizes on a conveyor system. The image lift tunnel scanner operates by passing a package first through a dimensioning device, such light curtain that determines the package's height, width, length, orientation and position on the conveyor belt. A bottom scan camera takes a fixed focus image and requires only a trigger and length information from the light curtain. The length information determines the duration of the scan after the camera receives the trigger signal. A top scan camera also requires a trigger and the length information along with the height information so that it can set its focus. Each of two side cameras also receives trigger and length information. If the package is registered on the conveyor belt, the only additional information required is the package width and the package position on the conveyor belt so that the start and stop of the image scan can be calculated.Type: GrantFiled: October 23, 2000Date of Patent: November 19, 2002Assignee: Lockheed Martin CorporationInventors: Michael J. Riess, Lawrence E. Albertelli
-
Publication number: 20020008139Abstract: Focused imaging of constant size and resolution over a wide range of distances and a wide field of view in object space is provided by a doubly telecentric catadioptric optical system including an external limiting aperture at the juncture of the focal planes of two objectives, with a large-diameter concave spherical or aspheric mirror as the primary objective, and a camera lens as the secondary objective. Constant resolution avoids rescaling of images made at different depths for machine recognition tasks such as OCR, saving computation time and cost, and increasing through-put and accuracy. For digital linescan cameras, constant resolution of the image avoids scanning objects at different line rates for different depths of objects being scanned, thus maximizing speed of the objects and, hence, throughput. The field of view is constant over the entire range of depth and is not limited by the diameter of the camera lens elements.Type: ApplicationFiled: April 20, 2001Publication date: January 24, 2002Inventor: Lawrence E. Albertelli