LED Flicker Mitigation for Motion Pictures
AssigneeBAE Systems Imaging Solutions Inc.
InventorsAlberto M. Magnani, Christopher R. Adams, Calvin B. Ward
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AssigneeBAE Systems Imaging Solutions Inc.
InventorsAlberto M. Magnani, Christopher R. Adams, Calvin B. Ward
Estimating the term…
An apparatus for taking moving pictures, a method for taking moving pictures, and a novel pixel sensor array are disclosed. The apparatus includes a rectangular imaging array, a plurality of column processing circuits, and a controller. The rectangular imaging array is characterized by a plurality of rows and columns of UHDR pixel sensors and a plurality of readout lines, and a plurality of row select lines. Each column processing circuit is connected to a corresponding one of the plurality of readout lines. The controller causes the rectangular imaging array to measure a plurality of images of a scene that is illuminated by a pulsating light source characterized by an illumination period and a dark period. Each of the images is generated in a frame period which includes an exposure period and a dead period, the dead period being less than the dark period.
An apparatus comprising:
A method for operating a camera having an imaging array characterized by a plurality of UHDR pixel sensors and a controller that causes said imaging array to measure a plurality of images of a scene being illuminated by a pulsating light source having a pulse period divided into an illumination period and a dark period, when said pulsating light source is illuminating said scene and a dark period when said scene is not being illuminated, each of said plurality of images being generated in a frame period comprising an exposure period during which said pixel sensors accumulate photocharge from said scene, and a dead time equal to said frame time minus said exposure period, said dead time being less than said dark period.
An apparatus comprising a plurality of pixel sensors connected to a bit line, each pixel sensor comprising a photodetector comprising:
Dependencies are inferred from the claim text.