Patent ID: 6304604
Filing Date: 2001-10-16
Classification: H04N

Abstract:
A method for performing a decompression operation on a plurality of compressed image data elements, said method minimizing a number of transpose operations used during said decompression operation, said method comprising the steps of:translating compressed video image data into an associated plurality of data elements, said translating step being one of a plurality of stages of said decompression operation;storing sequential ones of said plurality of data elements in sequential locations of sequential columns of a first matrix, beginning with a first location in a first of said columns and ending with a last locations in a last of said columns;performing an inverse quantization operation on said sequentially stored plurality of data elements for generating a plurality of coefficients; andarranging said plurality of coefficients, in a first pre-determined order such that only a single transpose operation is required during said decompression operation in a manner enabling video playback.