Patent ID: 8503809
Filing Date: 2013-08-06
Classification: H04N

Abstract:
1. An information processing apparatus, comprising: analysis filtering means for performing an analysis filtering process of decomposing image data in increments of a frequency band using a reversible method that can restore original image data from transformed coefficient data by performing a transform in an opposite direction, and generating sub-bands including coefficient data in increments of the frequency band, in increments of a line block including image data equivalent to a number of lines needed to generate coefficient data equivalent to one line of sub-bands of at least the lowest frequency components; and encoding means for determining whether a predetermined number of the line blocks have been processed by the analysis filtering means and for encoding the coefficient data generated by the analysis filtering process performed by the analysis filtering means using a reversible method that can restore original coefficient data from encoded data by performing a decoding process in increments of a group of items of the coefficient data generated from a plurality of the line blocks, in response to the encoding means determining that the predetermined number of the line blocks have been processed by the analysis filtering means.