Patents by Inventor Dennis W. Purcell

Dennis W. Purcell 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: 20220174245
    Abstract: Imaging devices and methods for generating a color image from a low-light scene. A method incudes filtering light from the low-light scene to produce a first light channel having filtered light filtered by a first filter and a second light channel having unfiltered light. The method includes producing a first information channel and a second information channel. The first information channel includes first brightness information corresponding to the first light channel and the second information channel includes second brightness information corresponding to the second light channel. The method includes receiving the first information channel and the second information channel and assigning the first brightness information to a first color channel. The method includes assigning the second brightness information to second color channel and processing the first color channel and the second color channel to produce a full-color image stream. The method includes outputting the full-color image stream.
    Type: Application
    Filed: February 18, 2022
    Publication date: June 2, 2022
    Inventors: Peter W.J. Jones, Ellen Cargill, Dennis W. Purcell
  • Patent number: 11070773
    Abstract: Full-color images of low-light scenes are generated by the systems and methods described herein using only two light channels. An array of photosensitive pixels includes two sets of pixels, the first sensitive only to light associated with a first light channel, the second only to light associated with a second light channel. Thus the first set of pixels generate a first set of electrical signals in response to incident light within the first light channel, and the second set of pixels generate a second set of electrical signals in response to incident light within the second light channel. An image processor receives the first and second sets of electrical signals and generates a full-color image of the scene by processing only signals generated by the first and second sets of pixels.
    Type: Grant
    Filed: June 26, 2019
    Date of Patent: July 20, 2021
    Assignee: Chromatra, LLC
    Inventors: Peter W. J. Jones, Ellen Cargill, Dennis W. Purcell
  • Publication number: 20190379865
    Abstract: Full-color images of low-light scenes are generated by the systems and methods described herein using only two light channels. An array of photosensitive pixels includes two sets of pixels, the first sensitive only to light associated with a first light channel, the second only to light associated with a second light channel. Thus the first set of pixels generate a first set of electrical signals in response to incident light within the first light channel, and the second set of pixels generate a second set of electrical signals in response to incident light within the second light channel. An image processor receives the first and second sets of electrical signals and generates a full-color image of the scene by processing only signals generated by the first and second sets of pixels.
    Type: Application
    Filed: June 26, 2019
    Publication date: December 12, 2019
    Inventors: Peter W.J. Jones, Ellen Cargill, Dennis W. Purcell
  • Patent number: 10341621
    Abstract: Full-color images of low-light scenes are generated by the systems and methods described herein using only two light channels. An array of photosensitive pixels includes two sets of pixels, the first sensitive only to light associated with a first light channel, the second only to light associated with a second light channel. Thus the first set of pixels generate a first set of electrical signals in response to incident light within the first light channel, and the second set of pixels generate a second set of electrical signals in response to incident light within the second light channel. An image processor receives the first and second sets of electrical signals and generates a full-color image of the scene by processing only signals generated by the first and second sets of pixels.
    Type: Grant
    Filed: March 13, 2018
    Date of Patent: July 2, 2019
    Assignee: Chromatra, LLC.
    Inventors: Peter W. J. Jones, Ellen Cargill, Dennis W. Purcell
  • Publication number: 20180241974
    Abstract: Full-color images of low-light scenes are generated by the systems and methods described herein using only two light channels. An array of photosensitive pixels includes two sets of pixels, the first sensitive only to light associated with a first light channel, the second only to light associated with a second light channel. Thus the first set of pixels generate a first set of electrical signals in response to incident light within the first light channel, and the second set of pixels generate a second set of electrical signals in response to incident light within the second light channel. An image processor receives the first and second sets of electrical signals and generates a full-color image of the scene by processing only signals generated by the first and second sets of pixels.
    Type: Application
    Filed: March 13, 2018
    Publication date: August 23, 2018
    Inventors: Peter W.J. Jones, Ellen Cargill, Dennis W. Purcell
  • Patent number: 9955127
    Abstract: Full-color images of low-light scenes are generated by the systems and methods described herein using only two light channels. An array of photosensitive pixels includes two sets of pixels, the first sensitive only to light associated with a first light channel, the second only to light associated with a second light channel. Thus the first set of pixels generate a first set of electrical signals in response to incident light within the first light channel, and the second set of pixels generate a second set of electrical signals in response to incident light within the second light channel. An image processor receives the first and second sets of electrical signals and generates a full-color image of the scene by processing only signals generated by the first and second sets of pixels.
    Type: Grant
    Filed: October 30, 2015
    Date of Patent: April 24, 2018
    Assignee: CHROMATRA, LLC.
    Inventors: Peter W. J. Jones, Ellen Cargill, Dennis W. Purcell
  • Publication number: 20160073067
    Abstract: Full-color images of low-light scenes are generated by the systems and methods described herein using only two light channels. An array of photosensitive pixels includes two sets of pixels, the first sensitive only to light associated with a first light channel, the second only to light associated with a second light channel. Thus the first set of pixels generate a first set of electrical signals in response to incident light within the first light channel, and the second set of pixels generate a second set of electrical signals in response to incident light within the second light channel. An image processor receives the first and second sets of electrical signals and generates a full-color image of the scene by processing only signals generated by the first and second sets of pixels.
    Type: Application
    Filed: October 30, 2015
    Publication date: March 10, 2016
    Inventors: Peter W.J. Jones, Ellen Cargill, Dennis W. Purcell
  • Patent number: 9177988
    Abstract: Full-color images of low-light scenes are generated by the systems and methods described herein using only two light channels. An array of photosensitive pixels includes two sets of pixels, the first sensitive only to light associated with a first light channel, the second only to light associated with a second light channel. Thus the first set of pixels generate a first set of electrical signals in response to incident light within the first light channel, and the second set of pixels generate a second set of electrical signals in response to incident light within the second light channel. An image processor receives the first and second sets of electrical signals and generates a full-color image of the scene by processing only signals generated by the first and second sets of pixels.
    Type: Grant
    Filed: December 17, 2012
    Date of Patent: November 3, 2015
    Assignee: CHROMATRA, LLC.
    Inventors: Peter W. J. Jones, Ellen Cargill, Dennis W. Purcell
  • Patent number: 8791984
    Abstract: The systems and methods described herein provide imaging systems for imaging a scene. The imaging system includes an optical head, a processor, and an analog communication port. The processor receives captured digital image data from the optical head. The processor sends the image data to the analog communication port to generate an analog video stream that is protocol compatible with typical closed-circuit television (CCTV) networks, such as PAL or NTSC. The imaging system has a physical interface that allows the system to plug into a conventional CCTV network. To generate a video stream that is protocol compatible with the CCTV network, the analog communication port may down sample the digital image data to generate a PAL or NTSC compatible image. The down sampled digital image data is converted to a compliant analog signal and delivered over the physical layer of the CCTV network for display on a conventional television monitor.
    Type: Grant
    Filed: February 18, 2011
    Date of Patent: July 29, 2014
    Assignee: Scallop Imaging, LLC
    Inventors: Peter W. J. Jones, Ellen Cargill, Dennis W. Purcell
  • Publication number: 20140153825
    Abstract: Systems and methods for processing data representative of a full color image. Such systems may comprise the steps of assisting a color blind person to indicate portions of an image which to their color-deficient vision are indistinguishable, and altering the image to cause those portions to become distinguishable and identifiable.
    Type: Application
    Filed: February 6, 2014
    Publication date: June 5, 2014
    Inventors: Peter W. J. Jones, Dennis W. Purcell
  • Publication number: 20140085410
    Abstract: The systems and methods described herein provide imaging systems with multiple imaging sensors arranged in an optical head that create a seamless panoramic view by reducing parallax distortion and adaptively adjusting exposure levels of the recorded images. In particular, an optical head is described with a stacked configuration of CCD imaging sensors in which charge is transferred from a sensor to a processor beginning with an array of photosensitive elements nearest another sensor.
    Type: Application
    Filed: March 26, 2013
    Publication date: March 27, 2014
    Applicant: TENEBRAEX CORPORATION
    Inventors: Peter W. J. Jones, Ellen Cargill, Dennis W. Purcell
  • Patent number: 8564640
    Abstract: The systems and methods described provide an imaging system that allows multiple sensors to record images at their respective best exposures values and adaptively altering the exposure of the images recorded to create a seamless 360-degree view. In particular, the systems and methods described herein include determining exposure values for each column of photosensitive elements in a sensor by interpolating between the best exposure values of adjacent sensors.
    Type: Grant
    Filed: November 17, 2008
    Date of Patent: October 22, 2013
    Assignee: Tenebraex Corporation
    Inventors: Peter W. J. Jones, Dennis W. Purcell
  • Patent number: 8446509
    Abstract: The systems and methods for real time transmission of an image from an image sensor having a field of view to a processor for selectively adjusting a resolution of the image as a function of a viewer's focus point.
    Type: Grant
    Filed: August 9, 2007
    Date of Patent: May 21, 2013
    Assignee: Tenebraex Corporation
    Inventors: Peter W. J. Jones, Dennis W. Purcell
  • Publication number: 20110234807
    Abstract: The systems and methods described herein provide imaging systems for imaging a scene. The imaging system includes an optical head, a processor, and an analog communication port. The processor receives captured digital image data from the optical head. The processor sends the image data to the analog communication port to generate an analog video stream that is protocol compatible with typical closed-circuit television (CCTV) networks, such as PAL or NTSC. The imaging system has a physical interface that allows the system to plug into a conventional CCTV network. To generate a video stream that is protocol compatible with the CCTV network, the analog communication port may down sample the digital image data to generate a PAL or NTSC compatible image. The down sampled digital image data is converted to a compliant analog signal and delivered over the physical layer of the CCTV network for display on a conventional television monitor.
    Type: Application
    Filed: February 18, 2011
    Publication date: September 29, 2011
    Applicant: Tenebraex Corporation
    Inventors: Peter W. J. Jones, Ellen Cargill, Dennis W. Purcell
  • Publication number: 20110229023
    Abstract: Systems and methods for processing data representative of a full color image. Such systems may comprise the steps of assisting a color blind person to indicate portions of an image which to their color-deficient vision are indistinguishable, and altering the image to cause those portions to become distinguishable and identifiable.
    Type: Application
    Filed: March 28, 2011
    Publication date: September 22, 2011
    Applicant: Tenebraex Corporation
    Inventors: Peter W. J. Jones, Dennis W. Purcell
  • Patent number: 7929727
    Abstract: Featured is an apparatus and method for detecting an object (e.g., human, man-made object) from its background, which object may be camouflaged so as to blend the object with the background. In its broadest aspects the detecting method includes viewing an area while selectively and varyingly changing a sensitivity of a viewing device to certain wavelengths of light lying in any one of the ultraviolet (UV) range, the visible range or the near and/or far infrared and determining the presence of an object when a visual difference between the object and background is discerned when the sensitivity of the viewing device is changed to a certain mixture of wavelengths of light. The method further includes determining the presence of an object when a visual difference is observed between the object and the background and no discernable difference is observed one sensitivity of the viewing device is changed to least another mixture of wavelengths.
    Type: Grant
    Filed: July 25, 2003
    Date of Patent: April 19, 2011
    Assignee: Tenebraex Corporation
    Inventors: Peter W. J. Jones, Dennis W. Purcell
  • Patent number: 7916152
    Abstract: Systems and methods for processing data representative of a full color image. Such systems may comprise the steps of assisting a color blind person to indicate portions of an image which to their color-deficient vision are indistinguishable, and altering the image to cause those portions to become distinguishable and identifiable.
    Type: Grant
    Filed: March 22, 2007
    Date of Patent: March 29, 2011
    Assignee: Tenebraex Corporaton
    Inventors: Peter W. J. Jones, Dennis W. Purcell
  • Publication number: 20110069148
    Abstract: The systems and methods described herein are directed to multi-sensor imaging systems for imaging scenes. In particular, the systems and methods described herein are directed to multi-sensor panoramic imaging systems having cameras with lenses offset from their respective sensors. By orienting sensors and lenses in the imaging system such that their optical axes are offset from one another, images may be captured by multiple sensors and stitched together with relatively little image processing and/or data interpolation.
    Type: Application
    Filed: September 22, 2010
    Publication date: March 24, 2011
    Applicant: Tenebraex Corporation
    Inventors: Peter W. J. Jones, Dennis W. Purcell, Ellen Cargill
  • Publication number: 20100103300
    Abstract: The systems and methods described herein relate to high resolution imaging. In particular, the systems include two or more lens assemblies for imaging a particular scene. Each lens assembly has image sensors disposed behind the lens assembly to image only a portion of the scene viewable through the lens assembly. Image sensors behind different lens assemblies image different portions of the scene. When the imaged portions from all the sensors are combined, a high resolution image of the scene is formed. Thus, multiple sensors can be combined to generate a high resolution image without prospective mismatching, and without the shortcomings associated with the border regions and packaging of the individual sensors, such as image gaps.
    Type: Application
    Filed: October 26, 2009
    Publication date: April 29, 2010
    Applicant: Tenebraex Corporation
    Inventors: Peter W. J. Jones, Ellen Cargill, Dennis W. Purcell
  • Publication number: 20090296247
    Abstract: An apparatus and methods for converting a monochrome night vision or other electro-optical device into one that provides a sensation of full color, including from red to blue with white and black. The method provides color images from an electro-optical device in which the image data from the electro-optical device contains brightness information of an area being viewed by the device without separate color information. Such a method includes operably coupling an optical channel system to the electro-optical device and configuring the optical channel system and arranging the optical channel system with respect to the electro-optical device so two color informational channels are provided to the viewer, whereby the two informational channels formed by said configuring and arranging of the optical channel system are such that the viewer sees a color image.
    Type: Application
    Filed: March 10, 2009
    Publication date: December 3, 2009
    Applicant: Tenebraex Corporation
    Inventors: Peter W. J. Jones, Dennis W. Purcell