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US 7,746,386 B2Granted
Image pickup device and method
AssigneeSony Corporation
InventorsMakibi Nakamura, Hideho Une, Yumi Sanaka
Life of this patent
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Abstract
The present invention relates to an image pickup device including: a detecting unit for detecting a position of a filter for changing light separation; and a white balance controlling unit for performing white balance control on a basis of the position of the filter detected by the detecting unit.
Claims14
An image pickup device comprising:
- a first detecting unit configured to detect a position of a filter for changing light separation;
- a second detecting unit configured to detect color components red (R), green (G), and blue (B) from a video signal obtained by picture taking;
- a calculating unit configured to calculate respective integral values of the color components red (R), green (G), and blue (B) from the video signal as detected by the second detecting unit and to provide a control signal corresponding to the calculated respective integral values of the color components;
- and
- a white balance controlling unit configured to perform white balance control on a basis of the position of said filter detected by said first detecting unit;
- wherein when the first detecting unit detects that the filter is at a position of an optical axis, the white balance controlling unit performs control based upon blackbody curve data of only a visible light component,
- wherein when the first detecting unit detects that the filter is at an external position off the optical axis, the white balance controlling unit performs control based upon blackbody curve data obtained by taking an infrared component into consideration, and
- wherein when said first detecting unit detects that said filter is at the external position off the optical axis, said white balance controlling unit performs control such that a ratio between integral values of the color components from the video signal obtained by picture taking becomes a ratio between integral values of video signals based on a white subject taking an infrared component into consideration.
5 more elements
An image pickup device comprising:
- a first detecting unit configured to detect a position of a filter for changing light separation;
- a second detecting unit configured to detect color components red (R), green (G), and blue (B) from a video signal obtained by picture taking;
- a calculating unit configured to calculate respective integral values of the color components red (R), green (G), and blue (B) from the video signal as detected by the second detecting unit and to provide a control signal corresponding to the calculated respective integral values of the color components;
- and
- a white balance controlling unit configured to perform white balance control on a basis of the position of said filter detected by said first detecting unit;
- wherein when the first detecting unit detects that the filter is at a position of an optical axis, the white balance controlling unit performs control based upon blackbody curve data of only a visible light component, and
- wherein when the first detecting unit detects that the filter is at an external position off the optical axis, the white balance controlling unit performs control based upon blackbody curve data obtained by taking an infrared component into consideration.
4 more elements
An image pickup method, comprising the steps of:
- detecting a position of a filter for changing light separation;
- detecting color components red (R), green (G), and blue (B) from a video signal obtained by picture taking;
- calculating, with a calculating unit, respective integral values of the color components red (R), green (G), and blue (B) from the video signal obtained by picture taking and providing a control signal corresponding to the calculated respective integral values of the color components;
- and
- performing white balance control on a basis of the detected position of said filter, wherein when the filter is detected to be at a position of an optical axis, the white balance control is performed based upon blackbody curve data of only a visible light component, and wherein when the filter is detected to be at an external position off the optical axis, the white balance control is performed based upon blackbody curve data obtained by taking an infrared component into consideration.
2 more elements
An image pickup device comprising:
- first detecting means for detecting a position of a filter for changing light separation;
- second detecting means for detecting color components red (R), green (G), and blue (B) from a video signal obtained by picture taking;
- calculating means for calculating respective integral values of the color components red (R), green (G), and blue (B) from the video signal detected by the second detecting means, and for providing a control signal corresponding to the calculated respective integral values of the color components;
- and
- white balance controlling means for performing white balance control on a basis of the position of said filter detected by said first detecting means, wherein when the first detecting means detects that the filter is at a position of an optical axis, the white balance controlling means performs control based upon blackbody curve data of only a visible light component, and
- wherein when the first detecting means detects that the filter is at an external position off the optical axis, the white balance controlling means performs control based upon blackbody curve data obtained by taking an infrared component into consideration.
3 more elements
Dependencies are inferred from the claim text.