Electrical power varies as the square of the current, and thus flicker arising from an alternating current has a frequency of double the current frequency. The time dependence of the intensity can have various shapes, such as a step function or a sinusoid.įlicker can be a consequence of the light source being powered by alternating current, such as a sinusoidally varying current with a frequency of 50 Hz or 60 Hz. Such flickering is a periodic varying in intensity between a minimum intensity, such as zero intensity, and a maximum intensity. Description of the Related TechnologyĬertain known light sources do not produce a constant light intensity, but instead flicker. The present invention relates to methods, apparatus and computer readable storage media for reducing artefacts caused by the presence of flicker during image capture. BACKGROUND OF THE INVENTION Field of the Invention
The above-referenced patent application is incorporated by reference in its entirety. This application claims priority to GB Application No.
0 kommentar(er)
