| 摘要 |
<p>The apparatus receives a television signal (e.g. NTSC signal) representing image in an interlaced format and produces luminance signals (Ya, Yb) for display in non-interlaced format. The television signal is fed to an interpolator or comb filter (404 min ) to produce a luminance signal (Yd) derived from one field. The television signal is fed via a field delay (400) to another interpolator or comb filter (404) to produce a luminance signal (Ya) derived from a successive field. A motion detector (405, 1406, 406) detects field to field motion in the image. A signal combiner (415, 416) responsive to the motion detector produces from the luminance signals (Yd, Ya) a luminance signal (Yb) at least a major portion of which is derived from the delayed luminance signal (Ya) in the presence of motion, and at least a major portion of which is derived from the undelayed signal (Yb) in the absence of motion. Vertical detail information is also inserted by the combiner in dependence uponmotion. The combiner responds to motion on a pixel-by-pixel, line-by-line or frame-by-frame basis. </p> |
