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US 9,288,370 B2Granted
Imaging apparatus and audio processing apparatus
AssigneeCanon Kabushiki Kaisha
InventorFumihiro Kajimura
Life of this patent
Estimating the term…
Abstract
An audio signal acquired by an audio acquisition unit during a predetermined period from when a drive signal has been output is analyzed, and a noise reduction period is determined based on a specific frequency component included in the audio signal of the predetermined period. The noise generated in the noise reduction period is then reduced from the audio signal acquired by the audio acquisition unit.
Claims17
An imaging apparatus comprising:
- an imaging unit that generates an image signal corresponding to an image obtained by an optical system;
- an audio obtaining unit that obtains an audio signal;
- and
- a control unit that controls a driving operation of a component of the optical system so as to start driving in accordance with a drive start instruction, to drive for a predetermined driving period, and to stop driving after the predetermined driving period;
- a determination unit that determines a noise period in which a noise is included in the audio signal obtained by the audio obtaining unit,
- where the determination unit performs an operation for determining the noise period in an analysis period which includes a determined period from a driving stop timing of the component of the optical system and determines the noise period in the analysis period in accordance with the obtained audio signal in the analysis period;
- and
- an audio processing unit that reduces a noise from the audio signal in the noise period determined by the determination unit.
5 more elements
A method comprising:
- causing an imaging unit to generate an image signal corresponding to an image obtained by an optical system;
- causing an audio obtaining unit to obtain an audio signal;
- controlling a driving operation of a component of the optical system so as to start driving in accordance with a drive start instruction, to drive for a predetermined driving period, and to stop driving after the predetermined driving period;
- determining a noise period in which a noise is included in the audio signal obtained by the audio obtaining unit,
- where the determining performs an operation for determining the noise period in an analysis period which includes a determined period from a driving stop timing of the component of the optical system and determines the noise period in the analysis period in accordance with the obtained audio signal in the analysis period;
- and
- reducing a noise from the audio signal in the noise period determined by the determining.
4 more elements
A non-transitory computer-readable storage medium that stores a program for causing a computer to execute a method comprising:
- causing an imaging unit to generate an image signal corresponding to an image obtained by an optical system;
- causing an audio obtaining unit to obtain an audio signal;
- controlling a driving operation of a component of the optical system so as to start driving in accordance with a drive start instruction, to drive for a predetermined driving period, and to stop driving after the predetermined driving period;
- determining a noise period in which a noise is included in the audio signal obtained by the audio obtaining unit,
- where the determining performs an operation for determining the noise period in an analysis period which includes a determined period from a driving stop timing of the component of the optical system and determines the noise period in the analysis period in accordance with the obtained audio signal in the analysis period;
- and
- reducing a noise from the audio signal in the noise period determined by the determining.
4 more elements
Dependencies are inferred from the claim text.