Patent ID: 6351545
Filing Date: 2002-02-26
Classification: G03B

Abstract:
A video system comprising a video transmitter and a video receiver, said video transmitter operating to transmit a sequence of video frames to said video receiver, said transmitter comprising a splitter operable to eliminate at least half of the video frames from an original set of video frames and to transmit the remaining video frames as the sequence of video frames transmitted to said receiver, a first motion extractor connected to receive the remaining video frames from said splitter and to generate dense vector fields comprising sets of first vectors representing the change in position of image elements from frame to frame in the sequence of said remaining video frames, a first interpolator connected to said first motion extractor and connected to receive said remaining picture frames and operable to create first interpolated frames derived from corresponding ones of said remaining video frames by moving the image elements of corresponding remaining video frames to positions in the first interpolated frames in accordance with said first vectors reduced in magnitude, a comparator connected to receive from said splitter the original video frames eliminated from said original sequence of video frames and to receive said first interpolated frames and to compare the first interpolated frames with the corresponding eliminated frames to produce corrective data, said transmitter transmitting said corrective data to said receiver, said receiver comprising a second motion extractor connected to receive the sequence of video frames received by said receiver and to generate dense vector fields comprising sets of second vectors representing the change in position of image elements from frame to frame in the sequence of received video frames, and a second interpolator connected to said second motion extractor and to receive video frames received by said receiver and operable to create second interpolated frames derived from corresponding ones of the received video frames by moving the image elements of the corresponding frames to positions in the second interpolated frames in accordance with said second vectors reduced in magnitude, and a correction module connected to receive said corrective data and said second interpolated frames and to correct said second interpolated frames in accordance with said corrective data to correspond to said eliminated frames.