Since the start of television broadcasting, as a method of smoothly reproducing a moving image and reducing the information amount of the image, interlacing processing is performed in which two images with time difference are alternately mixed every other row. When performing image processing such as noise removal and contour emphasis on interlaced video, it is necessary to cancel the interlaced state, but if the video is enlarged for some reason, it is not possible to correctly deinterlace. In this paper, we describe a method to detect the state of the expanded interlaced video and restore it to the normal interlaced state. Experimental results confirmed that for interlaced videos of various enlargement ratios, the state was correctly detected and restored to the original size.
J-STAGEがリニューアルされました! https://www.jstage.jst.go.jp/browse/-char/ja/
