公开(公告)号：US06519006B1

公开(公告)日：2003-02-11

申请号：US09538625

申请日：2000-03-29

申请人： Akira Nakamura ,  Tadafumi Kuno ,  Shunichi Okada ,  Noriyuki Goto ,  Hiroyuki Torii ,  Masashi Kubota ,  Sadaharu Okada

发明人： Akira Nakamura ,  Tadafumi Kuno ,  Shunichi Okada ,  Noriyuki Goto ,  Hiroyuki Torii ,  Masashi Kubota ,  Sadaharu Okada

IPC分类号： H04N701

CPC分类号： H04N7/0122

摘要： An aspect ratio converter converts a still image signal having an aspect ratio of 4:3 to a still image signal having a predetermined wide aspect ratio. A both-end pixel extractor extracts predetermined amounts of both left and right end images of a horizontal scanning period of the still image signal having an aspect ratio of 4:3. A both-wing image data preparing unit and a both-wing extrapolator use the extracted images to extrapolate a region of from both left and right ends of the horizontal scanning period of the still image signal having an aspect ratio of 4:3 to both left and right ends of the horizontal scanning period of the still image signal having the wide aspect ratio.

摘要翻译： 长宽比转换器将具有4:3的纵横比的静止图像信号转换为具有预定宽宽比的静止图像信号。 两端像素提取器提取具有纵横比为4:3的静止图像信号的水平扫描周期的预定量的左右端图像。 双翼图像数据准备单元和双翼外推器使用所提取的图像将具有纵横比为4:3的静止图像信号的水平扫描周期的左右两端的区域外推到左侧 以及具有宽纵横比的静止图像信号的水平扫描周期的右端。