Temporal alignment system and method
AssigneeNevion Europe AS
InventorAndrew Rayner
Life of this patent
Estimating the term…
Abstract
A temporal alignment system and method for example for detecting temporal misalignment in video frames when the frames are divided for transport using a signal divider for dividing a single signal S into portions S1 . . . SN and using average picture level in determining whether data sets within a particular frame are misaligned.
Claims17
A method for aligning video signal portions, the method comprising the steps of:
- providing a video signal with an inherent video signal feature;
- dividing the video signal for transport along multiple links;
- transporting the video signal along the links;
- near a transport terminus, comparing the temporal alignment of a discontinuity of the feature in each link;
- and,
- making a temporal correction when one of the discontinuities falls temporally behind another of the discontinuities.
A system for detecting temporal misalignment in video frames that are divided for transport, the system comprising:
- a signal divider for dividing a single signal S into N signal portions S1 . . . SN;
- each signal portion for carrying a portion of the same video frame;
- N transport links, each link for receiving a respective signal Sx from the signal divider and for delivering a signal Sx′ to a signal reassembler (1≤x≤N);
- the signal reassembler assembling signal portions S1′ . . . SN′ corresponding to S1 . . . SN into a single signal S′;
- and,
- each signal portion is characterized by an average picture level that is discontinuous at scene cuts;
- and,
- wherein a misalignment monitor realigns the signal portions when one of the discontinuities falls temporally behind another of the discontinuities
A system for detecting temporal misalignment in video frames that are divided for transport, the system comprising:
- a signal source that conveys a video image using four 4K SDI video streams;
- transport links for transporting signals derived from the four streams;
- and,
- a misalignment monitor that uses average picture level discontinuities caused by scene cuts to determine whether temporal frame misalignment involving the four streams has occurred during transport.
Dependencies are inferred from the claim text.