Kabushiki Kaisha Toshiba

Toru Hirata

Kiyoyuki Kawai

Seijiro Yasuki

Masahiro Yamada

A noise-reduction apparatus is disclosed which reduces noise contained in a digital video signal. A two-frame difference detecting unit receives the digital video signal and detects a two-frame difference signal. A high-frequency component extracting unit extracts a high-frequency component of the digital video signal or a high-frequency component of the two-frame difference signal. A first elimination signal generating unit generates a first elimination signal corresponding to the two-frame difference signal. A frame difference detecting unit received the digital video signal and detects a frame difference signal. A low-frequency component extracting unit extracts a low-frequency component of the digital video signal or a low-frequency component of the frame difference signal. A second elimination signal generating unit generates a second elimination signal corresponding to the frame difference signal. A noise elimination unit eliminates the noise from the digital video signal in accordance with the first and second elimination signals.

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Yokohama, Japan

Toru Hirata