Patent ID: 7570823
Filing Date: 2009-08-04
Classification: H04N

Abstract:
1. A moving picture coding apparatus comprising: a coding unit operable to selectively inter-code or intra-code data of each of a plurality of frames of a moving picture, the inter-coding and intra-coding each involving quantization; and a determining unit operable to determine, based on an amount of codes generated only in a first frame that is immediately previous to a second frame, a quantizer scale to be used in quantization of data of the second frame, wherein when the coding unit is to inter-code the data of the second frame, the determination is done by using (i) a first method immediately after data of the first frame has been inter-coded, or (ii) a second method immediately after the data of the first frame has been intra-coded, the quantizer scale determined by using the second method taking a smaller value than that determined by using the first method.