Patent ID: 8325797

Claim:
A method of Reduced-Temporal-Resolution Update and quantizing video transform coefficients in hybrid coding standards, comprising: receiving with a video encoder a frame from within a group of video frames; defining an amplitude of a quantization parameter and a plurality of quantization parameter adjustment values, wherein the plurality of quantization parameter adjustment values is associated with a range of values selected from a plurality of ranges, and each of the plurality of ranges is associated with a distinct frame coding type; adjusting the amplitude of the quantization parameter based upon a coding type of the frame from a quantization parameter of a prior frame within the group of video frames using at least one of the plurality of quantization parameter adjustment values; defining a macroblock quantization parameter adjustment value and further adjusting the amplitude of the quantization parameter used by said video encoder for macroblocks in the frame based upon said macroblock quantization parameter adjustment value; composing a bitstream for transmission and subsequent decoding by a standard compliant decoder; and the amplitude of the quantization parameter for a P frame other than a first P frame in said group of video frames is determined by adjusting the amplitude of the quantization parameter for a prior P frame by a value of said plurality of quantization parameter adjustment values.