Method and device for visual range measurements with image sensor systems
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Abstract
A method and a device for measuring the visual range using image sensor systems made up of at least two image sensors which record generally the same scene. Objects are detected from the image sensor signals whose distance with respect to the image sensor system is calculated, the object contrast is determined and the visual range is ascertained.
11 Citations
34 Claims
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1-17. -17. (canceled)
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18. A method for measuring a visual range using an image sensor system including at least two image sensors, the method comprising:
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recording, via the at least two image sensors, a same scene;
ascertaining from image sensors signals from the at least two sensors a first variable which represents a contrast of an image or image detail of the recorded scene;
ascertaining a second variable as a function of the image sensor signals from the at least two image sensors, the second variable representing a distance with respect to a recorded object in the image or the image detail of the recorded scene; and
determining the visual range as a function of the first and second variables. - View Dependent Claims (19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32)
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33. A device for measuring a visual range, comprising:
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an image sensor system including at least two image sensors that record a same scene; and
an evaluation unit configured to calculate the visual range from the at least two image sensor signals and to generate an output signal as a measured value which is a measure for the visual range. - View Dependent Claims (34)
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Specification