Method and device for controlling the exposure of a camera
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Abstract
Disclosed is an exposure control method for a camera with at least one image sensor in which an image brightness set-point is preset and control is carried out with reference to this image brightness set-point it is provided to adjust the gradient of a substantially linear dependence of image brightness on illumination.
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Citations
18 Claims
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1-9. -9. (canceled)
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10. An exposure control method for a camera with at least one image sensor in which an image brightness set-point (Hsoll) is preset and control is carried out with reference to this image brightness set-point (Hsoll), the method comprising:
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adjusting a gradient (α
) by controlling at least one of an integration time or an intensification of an image sensor;
determining a new gradient from an initial gradient α
1, image brightness set-point Hsoll and current image brightness Hist according to the formula;
α
2=α
1*Hsoll/Hist. - View Dependent Claims (11, 12, 13, 14)
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15. An exposure control device for a camera with at least one image sensor in which an image brightness set-point Hsoll is preset and control is carried out with reference to this image brightness set-point Hsoll, the device comprising:
a computer for evaluating images and for substantially controling exposure and image brightness. - View Dependent Claims (16, 17, 18)
Specification