1993 年 17 巻 31 号 p. 19-24
A newly developed scanning line conversion algorithm is presented. Interlace TV signals are decomposed into temporal high and low component based on 525/1:1/30 signal format. These two components are separately converted and recomposed to progressive scan signals (525/1:1/60). Compared to existing conversion, aliasing distortion and vertical resolution in motion area are improved. This technique can be applied to letter box conversion as well as progressive scan conversion.