Patents by Inventor David Sheldon Hooper

David Sheldon Hooper 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: 8928947
    Abstract: A method for contrast enhancement for digital images, including filtering an original image having original color values, to generate a filtered image, receiving parameters for a response curve, the response curve being a function of color value that is user-adjustable, deriving local multipliers by applying the response curve to the filtered image, multiplying the original color values by the local multipliers, thereby generating a contrast-enhanced image from the original image. A system and a computer-readable storage medium are also described.
    Type: Grant
    Filed: July 23, 2012
    Date of Patent: January 6, 2015
    Assignee: ACD Systems International Inc.
    Inventor: David Sheldon Hooper
  • Publication number: 20130022287
    Abstract: A method for contrast enhancement for digital images, including filtering an original image having original color values, to generate a filtered image, receiving parameters for a response curve, the response curve being a function of color value that is user-adjustable, deriving local multipliers by applying the response curve to the filtered image, multiplying the original color values by the local multipliers, thereby generating a contrast-enhanced image from the original image. A system and a computer-readable storage medium are also described.
    Type: Application
    Filed: July 23, 2012
    Publication date: January 24, 2013
    Inventor: David Sheldon Hooper
  • Patent number: 8228560
    Abstract: A method for contrast enhancement for digital images, including filtering an original image having original color values, to generate a filtered image, receiving parameters for a response curve, the response curve being a function of color value that is user-adjustable, deriving local multipliers by applying the response curve to the filtered image, multiplying the original color values by the local multipliers, thereby generating a contrast-enhanced image from the original image. A system and a computer-readable storage medium are also described.
    Type: Grant
    Filed: August 9, 2006
    Date of Patent: July 24, 2012
    Assignee: ACD Systems International Inc.
    Inventor: David Sheldon Hooper
  • Patent number: 8014034
    Abstract: A method for contrast enhancement for digital images, including filtering an original image having original color values, to generate a first filtered image corresponding to bright color values, and a second filtered image corresponding to dark color values, deriving local highlight multipliers by applying a highlight response curve to the first filtered image, the highlight response curve being a function of color value that increases from a response value of one, corresponding to a color value of zero, to a response value greater than one, corresponding to a maximum color value, deriving local shadow multipliers by applying a shadow response curve to the second filtered image, the shadow response curve being a function of color value that decreases from a response value greater than one, corresponding to a color value of zero, to a response value of one, corresponding to a maximum color value, deriving local offset values by applying an offset curve to the first filtered image, and processing the original i
    Type: Grant
    Filed: April 13, 2005
    Date of Patent: September 6, 2011
    Assignee: ACD Systems International Inc.
    Inventor: David Sheldon Hooper
  • Patent number: 7856604
    Abstract: A system for operation and visualization of multiple content filters, including a plurality of filter interfaces for setting parameters of corresponding content filters that filter a catalog of assets, each content filter having a lock status being in a locked or an unlocked state, and each filter interface having a display generator for rendering a user interface display, wherein at least one such user interface display for a content filter is dependent upon the lock status of another content filter, and a lock processor for setting the lock status of at least one content filter. A method and a computer readable storage medium are also described and claimed.
    Type: Grant
    Filed: March 5, 2008
    Date of Patent: December 21, 2010
    Assignee: ACD Systems, Ltd.
    Inventors: David Sheldon Hooper, Yida Mao, Matthew Stanlake
  • Publication number: 20080189643
    Abstract: A system for operation and visualization of multiple content filters, including a plurality of filter interfaces for setting parameters of corresponding content filters that filter a catalog of assets, each content filter having a lock status being in a locked or an unlocked state, and each filter interface having a display generator for rendering a user interface display, wherein at least one such user interface display for a content filter is dependent upon the lock status of another content filter, and a lock processor for setting the lock status of at least one content filter. A method and a computer readable storage medium are also described and claimed.
    Type: Application
    Filed: March 5, 2008
    Publication date: August 7, 2008
    Inventors: David Sheldon Hooper, Yida Mao, Matthew Stanlake
  • Patent number: 7356778
    Abstract: A system for operation and visualization of multiple content filters, including a plurality of filter interfaces for setting parameters of corresponding content filters that filter a catalog of assets, each content filter having a lock status being in a locked or an unlocked state, and each filter interface having a display generator for rendering a user interface display, wherein at least one such user interface display for a content filter is dependent upon the lock status of another content filter, and a lock processor for setting the lock status of at least one content filter. A method and a computer readable storage medium are also described and claimed.
    Type: Grant
    Filed: September 24, 2003
    Date of Patent: April 8, 2008
    Assignee: ACD Systems Ltd.
    Inventors: David Sheldon Hooper, Yida Mao, Matthew Stanlake