公开(公告)号：US4882615A

公开(公告)日：1989-11-21

申请号：US252024

申请日：1988-09-28

申请人： Katsuji Yoshimura ,  Tadayoshi Nakayama ,  Hisashi Ishikawa ,  Chikara Sato

发明人： Katsuji Yoshimura ,  Tadayoshi Nakayama ,  Hisashi Ishikawa ,  Chikara Sato

IPC分类号： H04N9/78

CPC分类号： H04N9/78

摘要： The video processing apparatus according to this invention is constructed to receive a composite television signal having frequency-multiplexed luminance and chrominance signals. The composite color television signal is divided into a plurality of picture element signals by sampling it, and the luminance and chrominance signals frequency-multiplexed in each of the plurality of picture element signals are separated. An arbitrary one of the plurality of picture element signals is extracted as a remark picture element. A plurality of picture element signals whose chrominance signal frequency multiplexed therein is of the same phase as that of the chrominance signal frequency multiplexed in said remark picture element signal is extracted as first reference picture element signals. A plurality of picture element signals whose chrominance signal frequency multiplexed therein is in opposite phase to that of the chrominance signal multiplexed in the remark picture element signal is extracted as second reference picture element signals. Plural kinds of computed picture element signals are formed by using the remark element signals and a part of the plurality of second picture element signals. A plurality of correlation state signals are formed by computing the remark picture element signal, a part of the plurality of first reference picture element signals and part of the plurality of second reference picture element signals. A part of the plurality of computed picture element signals is selected on the basis of the plurality of correlation state signals.

摘要翻译： 根据本发明的视频处理装置被构造成接收具有频率复用的亮度和色度信号的复合电视信号。 复合彩色电视信号通过对复合彩色电视信号进行采样而被分成多个像素信号，并且分离多个像素信号中的每一个中的频率复用的亮度和色度信号。 提取多个像素信号中的任意一个作为备注图像元素。 作为第一参考图像元素信号，提取其色度信号频率多路复用的多个像素信号与在所述注释像素信号中复用的色度信号频率相同的相位。 作为第二基准像素信号，提取其色频信号频率多路复用的多个像素信号与在备注像素信号中多路复用的色度信号的相位相反。 通过使用备注元素信号和多个第二图像元素信号的一部分来形成多种计算的像素信号。 通过计算注释像素信号，多个第一参考像素信号的一部分和多个第二参考像素信号的一部分来形成多个相关状态信号。 基于多个相关状态信号来选择多个计算出的像素信号的一部分。

公开(公告)号：US4791487A

公开(公告)日：1988-12-13

申请号：US877899

申请日：1986-06-24

申请人： Susumu Kozuki ,  Tadayoshi Nakayama ,  Chikara Sato

发明人： Susumu Kozuki ,  Tadayoshi Nakayama ,  Chikara Sato

IPC分类号： H04N5/44 ,  H04N7/12 ,  H04N5/14 ,  H04N7/01

CPC分类号： H04N7/012

摘要： A picture signal conversion device arranged to obtain an interpolation signal by using a scanning line signal of a first picture signal which has scanning line signals corresponding to a predetermined number of scanning lines within one field period and to convert the first picture signal into a second picture signal which has a greater number of scanning lines than that of the first picture signal comprises: first interpolation signal generating means which generates a first interpolation signal for the present field by using a scanning line signal obtained within the present field; second interpolation signal generating means which generates a second interpolation signal for the present field by using a scanning line signal of another field; output means arranged to detect the correlativity of scanning line signal between fields and to selectively produce, according to the detected correlativity, the first or second interpolation signal generated from the first or second interpolation signal generating means; and detection characteristic control means for controlling the correlativity detecting characteristic of the output means according to the inclination of the correlativity among scanning lines obtained within a predetermined period.

摘要翻译： 一种图像信号转换装置，被配置为通过使用具有与一个场周期内的预定数量的扫描线相对应的扫描线信号的第一图像信号的扫描线信号来获得内插信号，并将第一图像信号转换为第二图像 具有比第一图像信号更多的扫描线的信号包括：第一内插信号产生装置，通过使用在本场中获得的扫描线信号来产生用于当前场的第一内插信号; 第二内插信号产生装置，通过使用另一场的扫描线信号产生用于当前场的第二内插信号; 输出装置，其被布置成检测场之间的扫描线信号的相关性，并根据检测的相关性选择性地产生从第一或第二内插信号产生装置产生的第一或第二内插信号; 以及检测特性控制装置，用于根据在预定时间段内获得的扫描线之间的相关性的倾斜度来控制输出装置的相关性检测特性。