Image capturing device for setting one or more setting values for an imaging mechanism based on acquired sound data that includes information reflecting an imaging environment
First Claim
Patent Images
1. An imaging device comprising:
- an imaging mechanism;
a sound acquisition unit operable to acquire sound data that includes information reflecting an imaging environment;
a setting unit operable to, based on the sound data acquired by the sound acquisition unit, select and set one or more setting values for controlling the imaging mechanism; and
a scene designation unit that (i) includes an extraction subunit operable to extract, from the sound data acquired by the sound acquisition unit, an environmental sound feature amount indicating the imaging environment, (ii) stores therein model information pieces that each defines various types of sound features, each of the types of sound features having a predetermined relationship with a corresponding one of imaging scenes, and (iii) is operable to designate one of the imaging scenes, with reference to the model information pieces and based on the environmental sound feature amount extracted by the extraction subunit, whereineach feature amount is a vector quantity composed of, as components, one or more of attributes of sound that are represented by a power of sound, zero crossing, a spectrum-related feature amount, a cepstrum-related feature amount, and a chroma vector,each model information piece includes information showing at least one value for each component of a vector quantity and is to be compared with each feature amount,the scene designation unit designates the imaging scene based on likelihoods that respectively pertain to pairs of a model information piece and a feature amount, each likelihood indicating a matching degree between the vector quantity indicated by the corresponding model information piece and the vector quantity of the corresponding feature amount, andthe setting unit (i) stores therein correspondence information that associates each of the imaging scenes with one or more setting values, and (ii) selects and sets one or more setting values associated by the correspondence information with the imaging scene designated by the scene designation unit as the one or more setting values for controlling the imaging mechanism.
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Abstract
An imaging device of the present invention comprises: an imaging mechanism; a sound acquisition unit operable to acquire sound data that includes information reflecting an imaging environment; and a setting unit operable to, based on the sound data acquired by the sound acquisition unit, select and set one or more setting values for controlling the imaging mechanism.
15 Citations
12 Claims
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1. An imaging device comprising:
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an imaging mechanism; a sound acquisition unit operable to acquire sound data that includes information reflecting an imaging environment; a setting unit operable to, based on the sound data acquired by the sound acquisition unit, select and set one or more setting values for controlling the imaging mechanism; and a scene designation unit that (i) includes an extraction subunit operable to extract, from the sound data acquired by the sound acquisition unit, an environmental sound feature amount indicating the imaging environment, (ii) stores therein model information pieces that each defines various types of sound features, each of the types of sound features having a predetermined relationship with a corresponding one of imaging scenes, and (iii) is operable to designate one of the imaging scenes, with reference to the model information pieces and based on the environmental sound feature amount extracted by the extraction subunit, wherein each feature amount is a vector quantity composed of, as components, one or more of attributes of sound that are represented by a power of sound, zero crossing, a spectrum-related feature amount, a cepstrum-related feature amount, and a chroma vector, each model information piece includes information showing at least one value for each component of a vector quantity and is to be compared with each feature amount, the scene designation unit designates the imaging scene based on likelihoods that respectively pertain to pairs of a model information piece and a feature amount, each likelihood indicating a matching degree between the vector quantity indicated by the corresponding model information piece and the vector quantity of the corresponding feature amount, and the setting unit (i) stores therein correspondence information that associates each of the imaging scenes with one or more setting values, and (ii) selects and sets one or more setting values associated by the correspondence information with the imaging scene designated by the scene designation unit as the one or more setting values for controlling the imaging mechanism. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. An integrated circuit comprising:
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a sound acquisition circuit operable to acquire sound data that includes information reflecting an imaging environment; a setting circuit operable to, based on the sound data acquired by the sound acquisition circuit, select and set one or more setting values for controlling image capturing; and a scene designation circuit that (i) includes an extraction sub-circuit operable to extract, from the sound data acquired by the sound acquisition circuit, an environmental sound feature amount indicating the imaging environment, (ii) stores model information pieces that each defines various types of sound features, each of the types of sound features having a predetermined relationship with a corresponding one of imaging scenes, and (iii) is operable to designate one of the imaging scenes, with reference to the model information pieces and based on the environmental sound feature amount extracted by the extraction sub-circuit, wherein each feature amount is a vector quantity composed of, as components, one or more of attributes of sound that are represented by a power of sound, zero crossing, a spectrum-related feature amount, a cepstrum-related feature amount, and a chroma vector, each model information piece includes information showing at least one value for each component of a vector quantity and is to be compared with each feature amount, the scene designation circuit designates the imaging scene based on likelihoods that respectively pertain to pairs of a model information piece and a feature amount, each likelihood indicating a matching degree between the vector quantity indicated by the corresponding model information piece and the vector quantity of the corresponding feature amount, and the setting circuit (i) stores correspondence information that associates each of the imaging scenes with one or more setting values, and (ii) selects and sets one or more setting values associated by the correspondence information with the imaging scene designated by the scene designation circuit as the one or more setting values for controlling the image capturing.
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11. An imaging method used by an imaging device that includes an imaging mechanism, the imaging method comprising:
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a sound acquisition step of acquiring sound data that includes information reflecting an imaging environment; a setting step of, based on the sound data acquired in the sound acquisition step, selecting and setting one or more setting values for controlling the imaging mechanism; and a scene designation step that includes an extraction sub-step of extracting, from the sound data acquired in the sound acquisition step, an environmental sound feature amount indicating the imaging environment, the scene designation step also being a step of (i) storing model information pieces that each defines various types of sound features, each of the types of sound features having a predetermined relationship with a corresponding one of imaging scenes, and (iii) designating one of the imaging scenes, with reference to the model information pieces and based on the environmental sound feature amount extracted in the extraction sub-step, wherein each feature amount is a vector quantity composed of, as components, one or more of attributes of sound that are represented by a power of sound, zero crossing, a spectrum-related feature amount, a cepstrum-related feature amount, and a chroma vector, each model information piece includes information showing at least one value for each component of a vector quantity and is to be compared with each feature amount, the scene designation step designates the imaging scene based on likelihoods that respectively pertain to pairs of a model information piece and a feature amount, each likelihood indicating a matching degree between the vector quantity indicated by the corresponding model information piece and the vector quantity of the corresponding feature amount, and the setting step (i) stores correspondence information that associates each of the imaging scenes with one or more setting values, and (ii) selects and sets one or more setting values associated by the correspondence information with the imaging scene designated in the scene designation step as the one or more setting values for controlling the imaging mechanism.
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12. A non-transitory recording medium having recorded thereon a program that causes a computer of an imaging device including an imaging mechanism to perform imaging processing, the imaging processing comprising:
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a sound acquisition step of acquiring sound data that includes information reflecting an imaging environment; a setting step of, based on the sound data acquired in the sound acquisition step, selecting and setting one or more setting values for controlling the imaging mechanism; and a scene designation step that includes an extraction sub-step of extracting, from the sound data acquired in the sound acquisition step, an environmental sound feature amount indicating the imaging environment, the scene designation step also being a step of (i) storing model information pieces that each defines various types of sound features, each of the types of sound features having a predetermined relationship with a corresponding one of imaging scenes, and (iii) designating one of the imaging scenes, with reference to the model information pieces and based on the environmental sound feature amount extracted in the extraction sub-step, wherein each feature amount is a vector quantity composed of, as components, one or more of attributes of sound that are represented by a power of sound, zero crossing, a spectrum-related feature amount, a cepstrum-related feature amount, and a chroma vector, each model information piece includes information showing at least one value for each component of a vector quantity and is to be compared with each feature amount, the scene designation step designates the imaging scene based on likelihoods that respectively pertain to pairs of a model information piece and a feature amount, each likelihood indicating a matching degree between the vector quantity indicated by the corresponding model information piece and the vector quantity of the corresponding feature amount, and the setting step (i) stores correspondence information that associates each of the imaging scenes with one or more setting values, and (ii) selects and sets one or more setting values associated by the correspondence information with the imaging scene designated in the scene designation step as the one or more setting values for controlling the imaging mechanism.
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Specification