Patents Examined by Jon J. Couso
  • Image coding system using an orthogonal transform and bit allocation method suitable therefor
    Patent number: 5327502
    Abstract: A bit allocation method which facilitate control of the number of bits to be assigned to transform coefficients and block of image data with a deviation from the functional form. An image coding system which can implement an optimal bit allocation that minimizes quantization error under a predetermined information content or amount, in carrying out bit allocations of block-adaptive type and transform coefficient-adaptive type.
    Type: Grant
    Filed: January 16, 1992
    Date of Patent: July 5, 1994
    Assignee: Sharp Kabushiki Kaisha
    Inventors: Hiroyuki Katata, Yoji Noguchi, Hiroshi Akagi