Patents by Inventor Mark Quentin Shaw

Mark Quentin Shaw 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: 20210356893
    Abstract: Examples of methods are described herein. In some examples, a method includes calculating a first cost function measure based on band defects in an image. In some examples, the method also includes calculating a second cost function measure based on the band defects and a synthetic band. In some examples, the method further includes detecting a missing band based on a comparison of the first cost function measure and the second cost function measure.
    Type: Application
    Filed: February 7, 2019
    Publication date: November 18, 2021
    Applicants: Hewlett-Packard Development Company, L.P., Purdue Research Foundation
    Inventors: Wan-Eih Huang, Jan Allebach, Richard Eric Maggard, Renee Jeanette Jessome, Mark Quentin Shaw
  • Publication number: 20210327047
    Abstract: An example of an apparatus is provided. The apparatus includes a communication interface to receive an image of output from a printing device. The apparatus further includes a memory storage unit connected to the communication interface. The memory storage unit is to store the image of the output. The apparatus also includes a preprocessing engine to process the image. In addition, the apparatus includes a selective search engine to define a search area within the image. The selective search engine defines the search area of the image based on a local defect of unknown size. Furthermore, the apparatus includes a classification engine in communication with the selective search engine. The classification engine is to classify the search area for identification of the local defect.
    Type: Application
    Filed: January 11, 2019
    Publication date: October 21, 2021
    Applicants: Hewlett-Packard Development Company, L.P., Purdue Research Foundation
    Inventors: Jan Allebach, Richard Eric Maggard, Renee Jeanette Jessome, Mark Quentin Shaw, Qiulin Chen
  • Publication number: 20150334422
    Abstract: Disclosed are techniques for video stream compression. A motion predicted frame and a current frame of video data are converted from a source color space to a perceptual color space. A delta (?) frame is calculated between the current frame and the motion predicted frame. Input color difference values between the current frame and the motion predicted frame are determined and mapped to a normalized output to create a tone mapped color difference image. The tone mapped color difference image and ? frame are multiplied to obtain a weighted ? frame. ? loss is calculated as the difference between the weighted ? frame and the ? frame. A variance map of the motion predicted frame is multiplied by the ? loss to obtain a ? preservation map. The weighted ? frame and ? preservation map are summed to obtain a modified ? frame which may be transformed, quantized and encoded.
    Type: Application
    Filed: July 27, 2012
    Publication date: November 19, 2015
    Inventors: Mark Quentin Shaw, Albert Parra, Jan Allebach