| 摘要 |
<p>PURPOSE: To provide a predictive coding device capable of excluding a quantize noise by predictive coding to be accumulated when predictive coding/decoding is repeated in a second or subsequent stages in an image signal predictive-coded/ decoded in a first stage even without applying the initialization of a predicter synchronizing with each predictive coding device in the case that the predictive coding device and a predictive decoding device are connected in multiple stages. CONSTITUTION: In this predictive coding device 1 containing a predictive error signal quantization means 12 which generates the quantize output signal of an integer value by quantizing the predictive error signal of the integer value, the predictive error signal quantization means 12 is provided with a quantize characteristic to output the predictive error signal as the quantize output signal as it is in a range in which the amplitude of the predictive error signal is small and also, to output a value as it is with respect to the predictive error signal of a value equal to the quantize output signal.</p> |
