Patent ID: 7339506
Filing Date: 2008-03-04
Classification: G06T,G11B,H03M,H04N

Abstract:
1. A method for coding quantized coefficients of a block image, the method comprising: scanning a two-dimensional array of quantized coefficients into scanned quantized coefficients, wherein said scanning is performed from a low frequency component toward a high frequency component; converting the scanned quantized coefficients into a run value and a level value, the run value indicating the number of continuous quantized coefficients, each having a zero value, and the level value indicating a value of a quantized coefficient having a non-zero value; coding the run value; and coding the level value; wherein the coding of the run value is performed, from a high frequency component toward a low frequency component, in accordance with information that represents a total number of uncoded quantized coefficients which have not been coded.