Patents by Inventor David Jones Brady
David Jones Brady 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).
-
Publication number: 20140247920Abstract: A system and method for producing images of the structure and composition of an object based on measurements of the low-angle x-ray diffraction properties of the object. The imaging system includes a coded aperture that encodes spatial and spectral features onto radiation scattered from image points within the object. The radiation is detected at a two-dimensional array of detectors, whose output is deconvolved and processed to estimate a three-dimensional image having molecular specificity.Type: ApplicationFiled: October 4, 2012Publication date: September 4, 2014Applicant: Duke UniversityInventors: Daniel Marks, David Jones Brady
-
Publication number: 20140192254Abstract: Optical systems based on an objective lens comprising one or more plastic lens elements are disclosed. The inclusion of plastic lens element reduces one or more of system cost, size, weight, and/or complexity. The chromatic performance of some imaging systems in accordance with the present invention is improved by incorporation of a diffractive surface into the entry surface of the objective lens.Type: ApplicationFiled: February 20, 2014Publication date: July 10, 2014Applicant: Duke UniversityInventors: Daniel Marks, David Jones Brady
-
Publication number: 20140176710Abstract: A multiscale telescopic imaging system is disclosed. The system includes an objective lens, having a wide field of view, which forms an intermediate image of a scene at a substantially spherical image surface. A plurality of microcameras in a microcamera array relay image portions of the intermediate image onto their respective focal-plane arrays, while simultaneously correcting at least one localized aberration in their respective image portions. The microcameras in the microcamera array are arranged such that the fields of view of adjacent microcameras overlap enabling field points of the intermediate image to be relayed by multiple microcameras. The microcamera array and objective lens are arranged such that light from the scene can reach the objective lens while mitigating deleterious effects such as obscuration and vignetting.Type: ApplicationFiled: October 31, 2013Publication date: June 26, 2014Applicant: Duke UniversityInventors: David Jones Brady, Jungsang Kim, Daniel Marks, Hui Seong Son
-
Patent number: 8553222Abstract: The present invention enables snap-shot spectral imaging of a scene at high image generation rates. Light from the scene is processed through an optical system that comprises a coded-aperture. The optical system projects a plurality of images, each characterized by only one of a plurality of spectral components, onto a photodetector array. The plurality of images is interspersed on the photodetector array, but no photodetector receives light characterized by more than one of the plurality of spectral components. As a result, computation of the spatio-spectral datacube that describes the scene is simplified. The present invention, therefore, enables rapid spectral imaging of the scene.Type: GrantFiled: December 30, 2011Date of Patent: October 8, 2013Assignees: Duke University, Applied Quantum TechnologiesInventors: David Jones Brady, Scott Thomas McCain, Andrew David Portnoy
-
Publication number: 20130242060Abstract: A multiscale imaging system including microcameras having controllable focus, dynamic range, exposure, and magnification is disclosed. The objective lens forms a three-dimensional image field of a scene. Image regions of the image field are relayed by the microcameras onto their respective focal-plane arrays, which collectively provide a plurality of digital sub-images of the scene. The digital sub-images can then be used to form a composite digital image of the scene that can have enhanced depth-of-field, enhanced dynamic range, parallax views of the scene, or three-dimensionality.Type: ApplicationFiled: May 7, 2013Publication date: September 19, 2013Applicant: Duke UniversityInventors: David Jones Brady, Jungsang Kim, Daniel Marks, Hui Seong Son
-
Patent number: 8259212Abstract: A means of enabling an imaging lens system that overcomes some of the costs and disadvantages of the prior art is disclosed. A lens system in accordance with the present invention reduces or eliminates one or more aberrations of an optical input by separating image collection functionality from image processing functionality. As a result, each function can be performed without compromising the other function. An embodiment of the present invention comprises a collection optic that provides a first optical field, based on light from a scene, to a processing optic that comprises a plurality of lenslets. The processing optic tiles the first optical field into a plurality of second optical fields.Type: GrantFiled: January 4, 2010Date of Patent: September 4, 2012Assignee: Applied Quantum Technologies, Inc.Inventors: David Jones Brady, Nathan Adrian Hagen, Scott Thomas McCain
-
Publication number: 20120218386Abstract: A method and system for forming a three-dimensional image of a three-dimensional scene using a two-dimensional image sensor are disclosed. Formation of a three-dimensional image is enabled by locating a coded aperture in an image field provided by a collector lens, wherein the coded aperture modulates the image field to form a modulated image at the image sensor. The three-dimensional image is reconstructed by deconvolving the modulation code from the image data, thereby enabling high-resolution images to be formed at a plurality of focal ranges.Type: ApplicationFiled: February 28, 2012Publication date: August 30, 2012Applicant: DUKE UNIVERSITYInventors: David Jones Brady, Daniel Marks
-
Publication number: 20120105844Abstract: The present invention enables snap-shot spectral imaging of a scene at high image generation rates. Light from the scene is processed through an optical system that comprises a coded-aperture. The optical system projects a plurality of images, each characterized by only one of a plurality of spectral components, onto a photodetector array. The plurality of images is interspersed on the photodetector array, but no photodetector receives light characterized by more than one of the plurality of spectral components. As a result, computation of the spatio-spectral datacube that describes the scene is simplified. The present invention, therefore, enables rapid spectral imaging of the scene.Type: ApplicationFiled: December 30, 2011Publication date: May 3, 2012Applicant: APPLIED QUANTUM TECHNOLOGIES, INC.Inventors: David Jones Brady, Scott Thomas McCain, Andrew David Portnoy
-
Patent number: 8149400Abstract: The present invention enables snap-shot spectral imaging of a scene at high image generation rates. Light from the scene is processed through an optical system that comprises a coded-aperture. The optical system projects a plurality of images, each characterized by only one of a plurality of spectral components, onto a photodetector array. The plurality of images is interspersed on the photodetector array, but no photodetector receives light characterized by more than one of the plurality of spectral components. As a result, computation of the spatio-spectral datacube that describes the scene is simplified. The present invention, therefore, enables rapid spectral imaging of the scene.Type: GrantFiled: April 10, 2009Date of Patent: April 3, 2012Assignees: Duke University, Applied Quantum Technologies, Inc.Inventors: David Jones Brady, Scott Thomas McCain, Andrew David Portnoy
-
Publication number: 20110211106Abstract: A monocentric lens-based multi-scale imaging system is disclosed. Embodiments of the present invention comprise a monocentric lens as an objective lens that collects light from a scene. Monocentric lenses in accordance with the present invention include a spherical central lens element and a plurality of lens shell sections that collectively reduce at least one of spherical and chromatic aberration from the magnitude introduced by the spherical lens element itself. A plurality of secondary lenses image the scene through the objective lens and further reduce the magnitude of aberrations introduced by the objective lens. A plurality of sensor arrays converts optical sub-images of the scene into a plurality of digital images, which can then be used to form a composite image of the scene.Type: ApplicationFiled: April 27, 2011Publication date: September 1, 2011Applicant: DUKE UNIVERSITYInventors: Daniel Marks, David Jones Brady
-
Patent number: 7912173Abstract: A reference structure tomography device is provided which includes a reference structure configured to intercept and modulate energy in the form of waves or otherwise propagating from a source to a sensor, along longitudinal and traverse directions. The reference structure modulates or otherwise conditions the propagating wave to simplify an inversion process on the data set created by the interaction between the wave and the sensors. The reference structure can modulate a wave through multiple types of interactions with the wave including obscuring, defracting, defusing, scattering, and otherwise altering any characteristic of a portion of the wave. By selecting a reference structure that is compatible with the sensors, the number of measurements needed to resolve the source through the source wave is reduced. The reference structure can also increase the resolution of an imaging system.Type: GrantFiled: December 12, 2007Date of Patent: March 22, 2011Assignee: Duke UniversityInventor: David Jones Brady
-
Publication number: 20100322372Abstract: A reference structure tomography device is provided which includes a reference structure configured to intercept and modulate energy in the form of waves or otherwise propagating from a source to a sensor, along longitudinal and traverse directions. The reference structure modulates or otherwise conditions the propagating wave to simplify an inversion process on the data set created by the interaction between the wave and the sensors. The reference structure can modulate a wave through multiple types of interactions with the wave including obscuring, defracting, defusing, scattering, and otherwise altering any characteristic of a portion of the wave. By selecting a reference structure that is compatible with the sensors, the number of measurements needed to resolve the source through the source wave is reduced. The reference structure can also increase the resolution of an imaging system.Type: ApplicationFiled: December 12, 2007Publication date: December 23, 2010Inventor: David Jones Brady
-
Publication number: 20100253941Abstract: The present invention enables snap-shot spectral imaging of a scene at high image generation rates. Light from the scene is processed through an optical system that comprises a coded-aperture. The optical system projects a plurality of images, each characterized by only one of a plurality of spectral components, onto a photodetector array. The plurality of images is interspersed on the photodetector array, but no photodetector receives light characterized by more than one of the plurality of spectral components. As a result, computation of the spatio-spectral datacube that describes the scene is simplified. The present invention, therefore, enables rapid spectral imaging of the scene.Type: ApplicationFiled: April 10, 2009Publication date: October 7, 2010Applicants: APPLIED QUANTUM TECHNOLOGIES, INC., DUKE UNIVERSITYInventors: David Jones Brady, Scott Thomas McCain, Andrew David Portnoy
-
Publication number: 20100171866Abstract: A means of enabling an imaging lens system that overcomes some of the costs and disadvantages of the prior art is disclosed. A lens system in accordance with the present invention reduces or eliminates one or more aberrations of an optical input by separating image collection functionality from image processing functionality. As a result, each function can be performed without compromising the other function. An embodiment of the present invention comprises a collection optic that provides a first optical field, based on light from a scene, to a processing optic that comprises a plurality of lenslets. The processing optic tiles the first optical field into a plurality of second optical fields.Type: ApplicationFiled: January 4, 2010Publication date: July 8, 2010Applicants: APPLIED QUANTUM TECHNOLOGIES, INC., DUKE UNIVERSITYInventors: David Jones Brady, Nathan Adrian Hagen, Scott Thomas McCain
-
Publication number: 20040095626Abstract: A reference structure tomography device is provided which includes a reference structure configured to intercept and modulate energy in the form of waves or otherwise propagating from a source to a sensor, along longitudinal and traverse directions. The reference structure modulates or otherwise conditions the propagating wave to simplify an inversion process on the data set created by the interaction between the wave and the sensors. The reference structure can modulate a wave through multiple types of interactions with the wave including obscuring, defracting, defusing, scattering, and otherwise altering any characteristic of a portion of the wave. By selecting a reference structure that is compatible with the sensors, the number of measurements needed to resolve the source through the source wave is reduced. The reference structure can also increase the resolution of an imaging system.Type: ApplicationFiled: March 17, 2003Publication date: May 20, 2004Applicant: Duke UniversityInventor: David Jones Brady