Patent ID: 6100932
Filing Date: 2000-08-08
Classification: G06T,G11B,H03M,H04N

Abstract:
A method of processing image data, including a motion vector, corresponding to an image of one of a first and a second degree of resolution, the first degree of resolution being higher than the second degree of resolution, the method comprising the steps of:retrieving from a reference image storage device stored image data referenced by said motion vector; andperforming a motion compensated prediction operation using the referenced image data to produce second image data representing at least a portion of said image, the step of performing a motion compensated prediction operation including the steps of:performing an inverse data reduction operation on the referenced image data if the referenced image data was stored in a reduced data format; andif an inverse data reduction operation is performed, using reference image data produced by performing the inverse data reduction operation to perform said motion compensated prediction operation; andif no inverse data reduction operation is performed, using the retrieved referenced image data to perform said motion compensated prediction operation.