| 20110292241 | EXTENDED FLICKER CANCELLATION FOR AUTO EXPOSURE FOR A VIDEO CAMERA - A video camera includes a light collection array including a plurality of light collection cells configured to collect light from a scene and a processor coupled to the light collection array. The processor is configured determine a brightness of the scene based on the light collected by the light collection array from the scene. Based on the determined brightness, the processor is configured to determine if the brightness of the scene requires a light collection time of each cell to be less than a flicker on time of a light source lighting the scene so that the light collection array collects a sufficient amount of light so that a brightness of a video stream or a still image is substantially at a predetermined level. If the light collection time is determined to be less than the flicker on time to maintain brightness of the video stream or the still image at the predetermined level and if the brightness of the scene is less than a predetermined brightness, the processor is configured to set the light collection time at the flicker on time of the light source. If the light collection time is determined to be less than the flicker on time to maintain brightness of the video stream or the still image at the predetermined level and if the brightness of the scene is at, or greater than, the predetermined brightness, the processor is configured to set the light collection time less than the flicker on time of the light source. | 12-01-2011 |
