Patent ID: 8213520
Filing Date: 2012-07-03
Classification: G09G,H04N

Abstract:
1. A compression method for display frames of QFHD (quad full high definition) resolution, which is applied to the image encoding/decoding environment of the H.264/AVC image encoding standard of the QFHD resolution, comprising the steps of: (1) comparing each pixel input into an encoder with each reference pixel of the pixel dictionary of the encoder, wherein the pixel dictionary has three reference pixels and the initial values of the three reference pixels are 8′hff, 8′h00 and 8′h01 respectively; (2) the encoder writing encoded codewords and/or compressed and prediction-failed pixel data into an external DRAM via an AHB (ARM High-speed Serial Bus); and (3) the decoder fetching the encoded codewords and/or compressed and prediction-failed pixel data from the external DRAM via the AHB, continuously de-compressing the compressed data to display frame pixels, then transmitting the display frame pixels to a display controller.