Patent ID: 8810562
Filing Date: 2014-08-19
Classification: H04N

Abstract:
1. A graphics data compression method, carried out by a computer, comprising: providing a square of graphics data; transforming the square of graphics data into a tile of data; dividing the tile of data into quads of data, each quad having an upper left pixel, an upper right pixel, a lower left pixel, and a lower right pixel; converting each quad into a representative element, a first delta element, a second delta element, a third delta element, and a control word; forming a new tile of data with the representative elements converted from each converted quad of data; repeating the dividing, the converting, and the forming operations until a single representative element remains, and wherein the new tile of data becomes the tile of data for a next repetition of dividing, converting and forming in the repetition; and embedding the single representative element, the control words and the delta elements into an output stream.