Nikon Corporation

Kosuke Okano

Mitsuhiro Okazaki

Yoko Yoshizuka

A signal-processing device includes a determination section that compares a frequency spectrum and a floor spectrum of an input audio signal to each other for each frequency bin and determines whether the input audio signal should be subjected to noise reduction processing or not for each of the frequency bins; and a noise reduction-processing section that subtracts a noise frequency spectrum from the frequency spectrum of the input audio signal for each of the frequency bins on the basis of the result determined by the determination section for each of the frequency bins.

Signal processing device, imaging apparatus, and signal-processing program

Provided are an imaging device, program, memory medium, and noise reduction method capable of appropriately reducing noise without causing degradation in a target sound such as voice. The imaging device of the present invention has: a video imaging unit for capturing video; a signal converter for converting a sound generated during video capture to a sound signal; subject determination units that predict or recognize a specific subject; a noise detector for detecting noise included in the sound generated during video capture; a noise reduction unit for reducing the noise signal from the sound signal; a voice detector for detecting non-noise signals in the sound signal; and a noise reduction performance change unit that lowers the noise signal reduction performance of the noise reduction unit when the subject determination units predict or recognize the specific subject.

Imaging device, program, memory medium, and noise reduction method

An optical device comprises a vibration memberprovided on a substratetransmitting light so as to vibrate said substrate, a driving circuitfor driving said vibration member so as to generate nodes of vibrationon said substrate, a plurality of electrodes, at least one part thereof provided at neighbor of said nodes of vibration which transmits light, and an output circuitto output voltage to said plurality of electrode so as to change an electric field of a surface of said substrate.

Dust-removal optical device, a dust-removal imaging device, and method of manufacturing an optical device for removing dust

An imaging device comprises a quartz crystal plate including a quartz crystal of crystal structure having a first axis and a second axis vertical to the first axis, said quartz crystal plate being provided as facing to an image pickup element taking an image from an optical system, and a vibration member provided on a surface of said quartz crystal plate crossing an optical axis of said optical system so as to vibrate said quartz crystal plate, wherein;

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Yokohama, Japan

Kosuke Okano