Patent ID: 8395634
Filing Date: 2013-03-12
Classification: H04N

Abstract:
1. An information processing apparatus for encoding image data, comprising: filtering means for performing a filtering operation on the image data in a layer fashion to generate a plurality of subbands including coefficient data segmented on a per frequency band basis; intermediate data storage means for storing intermediate data generated in a middle of the filtering operation of the filtering means; coefficient storage means for storing the coefficient data generated in the filtering operation of the filtering means; coefficient rearranging means for performing a rearranging operation to rearrange the coefficient data stored on the coefficient storage means so that the coefficient data is output in a predetermined order; and control means for controlling an allocation of the coefficient storage means among a cache memory and an external memory external to the cache memory, based on a segmentation level, a size of the image data, and a usage amount of the cache memory, the cache memory writing and reading data thereon at a speed higher than the external memory and being smaller in a storage capacity than the external memory.