Noise reduction device.

摘要

A noise reducing device for reducing the noise in the video signals. An input video signal is supplied to addition units 1, 2 and 3, an output of the addition unit 1 is supplied to the addition unit 2 via a delay unit 4 for according a delay z<-><1>. An output of the addition unit 2 is supplied via a coefficient multiplication unit 5 having an attenuation coefficient k, to the addition unit 1 and via a coefficient multiplication unit 6 having an attenuation coefficient k2 to the addition unit 3 to carry out a noise reducing operation in accordance with a transfer function H(z) <MATH> for diminishing the residual image and effectively reducing the noise component contained in the input video signal. <IMAGE>