| 摘要 |
<p>PURPOSE:To reduce the deterioration in picture quality by deciding the position of a picture element subject to resampling in a television picture coding so that the sum of the square of the length of two diagonal lines of a quadrilateral formed by adjacent resampled picture elements and the square of the sides is minimized. CONSTITUTION:A resampling device consists of a one-picture element register 20 storing a resampled picture element, a resamplec clock controller 21 and a resampled picture element location calculator 22. A scanning line outputted from a sampling device 10 is resampled once per n-scanning lines by using a vertical resampled parameter (n) and a scanning line synchronizing signal 201 and a scanning line synchronizing signal 301 is outputted from the resampled clock controller 21 at that time. Through the constitution above, since the resampled picture element position calculator 22 decreases the difference between the distance of the sides and the length of diagonal lines of a quadrilateral formed by the adjacent resampled picture elements, a resampled picture element 300 outputted from the register 20 has a small difference in the correlation among picture elements.</p> |
