| 摘要 |
PURPOSE:To make the coding of video data easy, by making coding in the form having the highest data compression rate, through the assignment of new data pattern with a given rule to a plurality of video element components every row or column of collection block of a forecast error signal. CONSTITUTION:A forecast error signal generator 80 is constituted with a plurality of operators 81-1, 81-n, and the operators 81-1-81-n are connected with a plurality of shift registers 82-1-82-n-1. The video element data Din is sequentially received at the generator 80, the data pattern in a row unit is outputted as a forecast error signal Dout for one line's share, two line's share, - n line's share. The forecast error signal is set to an ROM94 and added to a discriminator 91 to discriminate if the bit of the forecast error signal is consecutive code. The signal is set to an ROM93 via a counter 92, and the code set to the ROM93 and that to the ROM94 are selected at a selector 95 to output the code with higher compression rate. |
