| 摘要 |
<p>PURPOSE:To remarkably compress information with respect to the video signal of the interlaced scanning system and to considerably reduce the information volume for moving picture without degrading the picture quality of a still picture. CONSTITUTION:The digital video signal of the interlaced scanning system passes a vertical interpolation filter 10 to match the spatial positions of picture elements in odd and even fields, and thereafter, a three-dimensional block is constituted for every plural picture elements by a field memory 4, and orthogonal conversion is performed in a three-dimensional orthogonal conversion circuit 5, and an obtained conversion coefficient is encoded by an encoder 6. If the conversion coefficient does not include any false moving picture components, it is encoded after weighting quantization.</p> |
