Patent ID: 6741252
Filing Date: 2004-05-25
Classification: G06T

Abstract:
An animation data compression method for compressing animation data of CG objects having a hierarchical structure which comprises a priority of compression, said method comprising:determining a priority of compression for each component of CG scene data; setting data belonging to a component of the CG scene data having a lowest priority of compression as compression object data, the lowest priority of compression being determined by said determining of a priority of compression for each component of the CG scene data; compressing the compression object data set by said setting of the data belonging to the component of the CG scene data having the lowest priority of compression; calculating a rate of the data compressed by said compressing of the compression object data; and comparing the rate calculated by said calculating of the rate to a target transfer rate, wherein when the calculated rate is lower than the target transfer rate as a result of said comparing, the compressed data are outputted, and when the calculated rate is higher than the target transfer rate as a result of said comparing, the compression object data set by said setting of the data belonging to the component of the CG scene data having the lowest priority of compression are replaced by data belonging to a component of the CG scene data having a second lowest priority of compression, the second lowest priority of compression being determined by said determining of a priority of compression for each component of the CG scene data.