| 摘要 |
PURPOSE:To realize a prediction encoder capable of detecting a highly accurate moving vector by constituting in such a way that a moving vector can be detected from an old screen used for removing noises and a picture signal whose noises have been just removed. CONSTITUTION:An animation signal inputted through a line 1000 is inputted to a noise removing circuit 10, which has memory of one screen and removes noises lying between screens with use of said memory. A vector detector 17 detects the moving between screens from the signal supplied through a line 1017 after noises are removed and the signal which has a time difference of one screen and is supplied through a line 1100. A variable delay circuit 16 modifies a delay time in accordance with the moving vector output of the detector 17, and generates a prediction signal through a line 1600. A circuit composed of a subtractor 12, quantizing device 13, unequal length encoder 18, etc., carries out the prediction and encoding with respect to the output of the noise removing circuit 10 with use of said prediction signal. |
