CAMERA HAVING DIGITAL GRAY FILTERING AND METHOD OF PROVIDING SAME
First Claim
1. A camera, comprising:
- an image sensor comprising an array of image sensing elements arranged in rows and columns;
a lens for imaging a field of view onto the image sensor;
timing circuitry that controls an integration period of each of the image sensing elements, the integration period representing a time during which the image sensing element acquires charge as a function of light incident on the image sensing element; and
gray filter circuitry, operatively coupled to the timing circuitry, for adjusting the integration period of image sensing elements above a horizon defined within the field of view relative to the integration period of image sensing elements below the horizon.
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Accused Products
Abstract
A camera includes an image sensor made up of an array of image sensing elements arranged in rows and columns. In addition, the camera includes a lens for imaging a field of view onto the image sensor, and timing circuitry that controls an integration period of each of the image sensing elements, the integration period representing a time during which the image sensing element acquires charge as a function of light incident on the image sensing element. Further, the camera includes gray filter circuitry, operatively coupled to the timing circuitry, for adjusting the integration period of image sensing elements above a horizon defined within the field of view relative to the integration period of image sensing elements below the horizon.
29 Citations
22 Claims
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1. A camera, comprising:
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an image sensor comprising an array of image sensing elements arranged in rows and columns; a lens for imaging a field of view onto the image sensor; timing circuitry that controls an integration period of each of the image sensing elements, the integration period representing a time during which the image sensing element acquires charge as a function of light incident on the image sensing element; and gray filter circuitry, operatively coupled to the timing circuitry, for adjusting the integration period of image sensing elements above a horizon defined within the field of view relative to the integration period of image sensing elements below the horizon. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17)
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18. A method for performing filtering in a camera, the camera including:
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an image sensor comprising an array of image sensing elements arranged in rows and columns; a lens for imaging a field of view onto the image sensor; and timing circuitry that controls an integration period of each of the image sensing elements, the integration period representing a time during which the image sensing element acquires charge as a function of light incident on the image sensing element, the method comprising; adjusting the integration period of image sensing elements above a horizon defined within the field of view relative to the integration period of image sensing elements below the horizon. - View Dependent Claims (19, 20, 21, 22)
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Specification