Abstract: Systems and methods for reducing or substantially eliminating image flicker are provided. The method includes capturing a frame from a video data stream from a monitored region at a frame capture rate wherein the monitored region is illuminated by a lighting system with a predetermined cycle variation, determining a minimum common multiple of the frame capture rate and the cycle variation, determining a number of frames captured within the determined minimum common multiple of the frame capture rate and the cycle variation, and measuring accumulation at a multiple of the determined number of frames. Measuring the accumulation at a multiple of the determined number of frames substantially eliminates image flicker in the video data stream.

Abstract: Systems and methods for reducing or substantially eliminating image flicker are provided. The method includes capturing a frame from a video data stream from a monitored region at a frame capture rate where the monitored region is illuminated by a lighting system with a predetermined cycle variation, determining a minimum common multiple of the frame capture rate and the cycle variation, determining a number of frames captured within the determined minimum common multiple of the frame capture rate and the cycle variation, and measuring accumulation at a multiple of the determined number of frames. Measuring the accumulation at a multiple of the determined number of frames substantially eliminates image flicker in the video data stream.

Abstract: A rotatable wireless electrical coupler is disclosed that presents a wireless alternative to mechanical slip rings, such as are used in rotatable mechanical assemblies such as dome cameras. The rotatable wireless electrical coupler is designed to provide for the wireless transfer therethrough of electrical power, video and data signals. A rotatable multi-function transformer of the electrical coupler is designed primarily for the transfer of electrical power therethrough, and can also be used for the transfer of data signals. A rotatable electrical capacitor of the electrical coupler is designed primarily for the transfer of video data signals therethrough, and can also be used for the transfer of control and feedback data signals. In a dome camera, the rotatable wireless electrical coupler transfers power and data signals to and from a rotatable platform/section on which is mounted a video camera, pan and tilt motors and other associated electrical components.