| 摘要 |
PURPOSE:To improve the S/N by controlling suitably the non-linear circuit to suppress the quantizing noise to the television signal including the quantizing noise by using the index information and the optimum dynamic vector information. CONSTITUTION:To a digitalized input television signal 1, a forcasting signal is constituted by using before one field or above, and a forcasting error signal to the input signal is coded and transmitted by the processing or the block unit. By applying the coding data sent at the receiving side to a forcasting signal, the signal is reproduced and the quantizing noise of the reproducing picture is suppressed. Then, a dynamic vector detecting circuit 16 supplies the optimum vector information to show the optimum block to a coding allotting circuit 7, a non-linear circuit 12 and a variable delaying circuit 15. The output of the non-linear circuit 12, to which the output of a variable delaying circuit 15 is applied in an adder circuit 13, comes to be a local decoding signal, is stored in a frame memory 14 and next, comes to be the forcasting signal of the frame. |
