Solid-state video camera and method for brightness control
AssigneeRichard Wolf GmbH
InventorsMartin Dolt, Michael Vogele
Life of this patent
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Abstract
A solid-state video camera is equipped with pixel addition logic such that, if the measured object brightness falls below a certain threshold value, a brightening of the image is effected without increasing the noise component accepting a loss in real-time representation. The pixel addition by way of the pixel addition logic is coupled to the gain control of the camera in a manner such that, in each case, the gain control compensates for jumps in brightness which arise by way of the pixel addition and creates for the user a flowing transition without noticeable jumps in brightness.
Claims17
A solid-state video camera comprising a brightness control unit which, based on a measured brightness signal of a video image, controls brightness of the image according to a nominal brightness value and has at least one brightness control mode, and pixel addition logic which adds brightness information of several neighboring pixels, the pixel addition logic being in active connection with the brightness control unit.
A method for brightness control in a solid-state video camera, comprising recording a video image using a solid-state image sensor, obtaining a brightness signal of the image, and controlling brightness of the image to a nominal value on the basis of at least one brightness control mode by providing a first brightness control mode which adds brightness information of several neighboring pixels of the video image.
Dependencies are inferred from the claim text.