Video picture processor

Abstract

Abstract PURPOSE:To obtain a video picture with high picture quality for print by applying respectively processing only a part suitable for interpolation method of various kinds in applying interpolation processing to the video picture to improve the picture quality of each part of the video picture. CONSTITUTION:After a video signal generated from a video signal generating source is converted into an RGB video signal and a synchronizing signal by a decoder or the like, the result is inputted to a frame buffer section 4. The frame buffer section 4 converts the RGB video signal into digital data by using an A/D converter 10 and the result is stored in a frame memory 12. The data of video picture stored in the frame memory 12 is transferred to a RAM 21 of a computer section 5 via interfaces 14, 23 of the frame buffer section 4 and the computer section 5 and a CPU 20 applies picture processing. Then the data of the video picture is read and the computer applies interpolation calculation stored in an interpolation position memory. The mean value interpolating method is used for a part desired to be smoothed in the picture and the cubic convolution method is applied to a part desired to increase the number of picture elements without losing sharpness.

Inventors

• 👤 Toshihiko Hashimoto
• 👤 敏彦 橋本
• 👤 Noriaki Mikami
• 👤 三上　憲明
• 👤 Toshio Murakami
• 👤 俊男 村上
• 👤 Shinichiro Oda
• 👤 慎一郎 小田
• 👤 Yukihisa Naito
• 👤 内藤　幸寿

Bibliographic Details