Color mask for an image sensor of a vehicle camera
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Accused Products
Abstract
A color mask for an image sensor of a vehicle camera, the color mask having a matrix configuration of filter pixels having different spectral transmission behaviors, some filter pixels being transparent filter pixels, which are at least essentially uniformly transparent for optical light, and additional filter pixels being color pixels having a wavelength-selective transmission behavior, the color mask having a color pattern as a repeating configuration of filter pixels having a specific transmission behavior. The color mask has a central area having a first color pattern and a lower area and/or an upper area having a second color pattern, the first color pattern and the second color pattern being different, and the first color pattern containing transparent filter pixels.
14 Citations
23 Claims
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1-10. -10. (canceled)
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11. A color mask for an image sensor of a vehicle camera, comprising:
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a color mask arrangement having a matrix configuration of filter pixels having different spectral transmission behaviors, some of the filter pixels being transparent filter pixels, which are at least essentially uniformly transparent for optical light, and additional ones of the filter pixels being color pixels having a wavelength-selective transmission behavior, and having a color pattern as a repeating configuration of filter pixels having specific transmission behaviors; wherein the color mask arrangement has a central area having a first color pattern and at least one of a lower area and an upper area having a second color pattern, the first color pattern and the second color pattern being different and the first color pattern containing transparent filter pixels. - View Dependent Claims (12, 13, 14, 15, 23)
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16. A vehicle camera, comprising:
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an image sensor having sensor pixels; a color mask situated in front of the sensor pixels, wherein the color mask is for an image sensor of the vehicle camera, and includes a color mask arrangement having a matrix configuration of filter pixels having different spectral transmission behaviors, some of the filter pixels being transparent filter pixels, which are at least essentially uniformly transparent for optical light, and additional ones of the filter pixels being color pixels having a wavelength-selective transmission behavior, and having a color pattern as a repeating configuration of filter pixels having specific transmission behaviors, wherein the color mask arrangement has a central area having a first color pattern and at least one of a lower area and an upper area having a second color pattern, the first color pattern and the second color pattern being different and the first color pattern containing transparent filter pixels; and a control and analyzing unit; wherein the image sensor is configured to output to the control and analyzing unit image signals, which contain first pixel signals of the sensor pixels covered with the filter pixels of the central area and second pixel signals of the filter pixels of the image sensor covered with the filter pixels of the at least one of the lower area and the upper area, and wherein the control and analyzing unit is configured to ascertain from the second pixel signals at least one of an average color value, a color temperature, and an average gray value for at least one of a white balance and a color correction of the first pixel signals. - View Dependent Claims (17, 18, 19, 20)
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21. A method for creating an image from image signals of a vehicle camera and for ascertaining objects in the image, the method comprising:
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detecting vehicle surroundings by using a camera having an image sensor and a color mask situated in front of the image sensor, the color mask having a central area having a first color pattern and at least one of a lower area and an upper area having a second color pattern; recording image signals which contain the first pixel signals from sensor pixels situated behind the first area and second pixel signals from sensor pixels situated behind the second color pattern; and ascertaining at least one of an average color value, a color temperature, and an average gray value and performing a white balance or a color correction of at least the first pixel signals. - View Dependent Claims (22)
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Specification