Patents by Inventor Mehdi Saeedi

Mehdi Saeedi 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: 20190238884
    Abstract: The present disclosure is directed to techniques for determining variance of a pixel block in a frame of video based on variance of pixel blocks in a reference frame of the video, instead of directly, for example, by calculating variance based on pixel values of the pixel block. The techniques include identifying a motion vector for a pixel block in a current frame, the motion vector pointing to a pixel block in a reference frame. The techniques also include determining the cost associated with the motion vector and comparing the cost to first and second thresholds. The techniques include determining the variance for the pixel block of the current frame based on the comparison of the cost to the first and second threshold and based on the variance of the pixel block of the reference frame.
    Type: Application
    Filed: April 8, 2019
    Publication date: August 1, 2019
    Applicant: ATI TECHNOLOGIES ULC
    Inventor: Mehdi SAEEDI
  • Patent number: 10291931
    Abstract: Techniques are provided for determining variance of a pixel block in a frame of video based on variance of pixel blocks in a reference frame of the video, instead of directly, for example, by calculating variance based on pixel values of the pixel block. The techniques include identifying a motion vector for a pixel block in a current frame, the motion vector pointing to a pixel block in a reference frame. The techniques also include determining the cost associated with the motion vector and comparing the cost to first and second thresholds. The techniques include determining the variance for the pixel block of the current frame based on the comparison of the cost to the first and second threshold and based on the variance of the pixel block of the reference frame.
    Type: Grant
    Filed: October 13, 2016
    Date of Patent: May 14, 2019
    Assignee: ATI TECHNOLOGIES ULC
    Inventor: Mehdi Saeedi
  • Publication number: 20180109804
    Abstract: The present disclosure is directed to techniques for determining variance of a pixel block in a frame of video based on variance of pixel blocks in a reference frame of the video, instead of directly, for example, by calculating variance based on pixel values of the pixel block. The techniques include identifying a motion vector for a pixel block in a current frame, the motion vector pointing to a pixel block in a reference frame. The techniques also include determining the cost associated with the motion vector and comparing the cost to first and second thresholds. The techniques include determining the variance for the pixel block of the current frame based on the comparison of the cost to the first and second threshold and based on the variance of the pixel block of the reference frame.
    Type: Application
    Filed: October 13, 2016
    Publication date: April 19, 2018
    Applicant: ATI Technologies ULC
    Inventor: Mehdi Saeedi
  • Publication number: 20180020232
    Abstract: A compressor is configured to determine delta color compression values for a plurality of pixels in a block and subdivide the plurality of pixels in the block into a plurality of groups and transmit a compressed bitstream representative of the delta values. The compressed bitstream includes bits representative of a block header that indicates a range of numbers of bits that are sufficient to represent the delta values, a plurality of group headers that each indicate a group minimum number of bits that is sufficient to represent the delta values in a corresponding one of the plurality of groups, and the delta values encoded using the group minimum number of bits for the group that includes the delta values. A decompressor configured to decompress the compressed bitstream based on the block header, the plurality of group headers, and the encoded delta values.
    Type: Application
    Filed: July 13, 2016
    Publication date: January 18, 2018
    Inventors: Mehdi Saeedi, Khaled Mammou, Arash Hariri, Gabor Sines, Lei Zhang