Moving picture coding apparatus, moving picture coding...

Details Moving picture coding apparatus, moving picture coding... Moving picture coding apparatus, moving picture coding...

2005-09-09

2009-08-04

Couso, Jose L (Department: 2624)

Image analysis

Image compression or coding

Interframe coding

Reexamination Certificate

active

07570823

ABSTRACT:
When a frame (n+1) is to be inter-coded after inter-coding a frame n (S142: INTER), a moving picture coding apparatus determines a quantizer scale Q[n+1] to be used in quantization of the frame (n+1), using a first method, based on an amount of generated codes Cn of the frame n (S143). When the frame (n+1) is to be inter-coded after intra-coding the frame n (S142: INTRA), the moving picture coding apparatus determines the quantizer scale Q[n+1] to be used in quantization of the frame (n+1), using a second method, based on the amount of generated codes Cn of the frame n (S143). The quantizer scale determined by using the second method takes a smaller value than that determined by using the first method.

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