Patent ID: 8374237

Claim:
A method for increasing the average compression ratio during compression of a sequence of digitized video images, the method comprising: receiving, at an encoder, a sequence of digitized video images, the digitized video images including a sequence of frames, wherein the digitized video images comprise a first number of bits of precision; encoding, at the encoder, the sequence of digitized video images by applying an inverse discrete cosine transform numerical algorithm that matches an inverse discrete cosine transform numerical algorithm applied during a subsequent decoding process by a decoder, wherein the inverse discrete cosine transform numerical algorithm applied by the encoder preserves a second number of bits of precision, the second number of bits of precision being greater than the first number of bits of precision, and wherein the second number of bits of precision matches a number of bits of precision of the inverse discrete cosine transform numerical algorithm applied by the decoder; and generating a compressed bitstream having increased spacing between Intra frames.