Patent ID: 8358359

Claim:
A method, using a computer having memory and one or more processing devices, for reducing artifacts in video information produced by a rolling shutter technique, comprising: receiving input video information that contains artifacts, the input video information being generated using the rolling shutter technique; determining low-frequency information from the input video information, the low-frequency information describing low-frequency motion exhibited in the input video information; inferring high-frequency information from the low-frequency information, using a motion model, the high-frequency information describing high-frequency movement associated with the input video information, said inferring the high-frequency information comprises: formulating the low-frequency information as measurement constraints, the measurement constraints expressing known values of integrals of unknown high-frequency information; formulating an energy function that includes at least one term that is based on the measurement constraints; and using an optimization technique to estimate the high-frequency information by operating on the energy function; correcting the input video information based on the high-frequency information, to generate output video information in which the artifacts contained therein are reduced; and providing the output video information.