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US 2013/0279606 A1Published application
System and method for error-resilient video coding
AssigneeVid Scale, Inc.
InventorsRahul Vanam, Zhifeng Chen, Yuriy Reznik
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Abstract
Error resilient video coding schemes that may be employed at a transmitter or transcoder to limit error propagation at the receiver. Embodiments may include the use of Inhomogeneous Temporal Multiple Description Coding (ITMDC), cross-description error concealment, and cross-description reference picture reset (RPS) as well as homogeneous and inhomogeneous temporal/spatial MDC.
Claims35
A video encoding method comprising:
- sub-sampling input video, the input video comprising a plurality of sequential frames, to generate at least first and second video streams, each stream comprising different frames of the input video;
- and
- encoding each of the at least first and second video streams to generate at least first and second video descriptions;
- wherein the frames contained in at least one of the video streams comprises temporally inhomogeneous frames of the input video.
1 more element
A multiple description coding (MDC) video decoding method comprising:
- receiving at least first and second video descriptions, each description comprising different temporal portions of an input video, wherein the frames contained in at least one of the descriptions comprises temporally inhomogeneous temporal portions of the input video;
- decoding the at least first and second descriptions;
- and
- when the at least first and second descriptions are received correctly, multiplexing the at least first and second descriptions to create a reproduction of the input video.
1 more element
A method for encoding video data comprising:
- temporally and spatially sub-sampling input video data to produce at least first, second, third, and fourth temporally and spatially sub-sampled video streams;
- and
- encoding each of the first, second, third, and fourth video streams to produce first, second, third, and fourth video descriptions.
A method for decoding video data comprising:
- receiving first, second, third, and fourth temporally and spatially sub-sampled video descriptions of an input video;
- and
- decoding the first, second, third, and fourth video streams to produce first, second, third, and fourth video descriptions;
- and
- when the first, second, third, and fourth descriptions are received correctly, multiplexing the first, second, third, and fourth descriptions to create a reproduction of the input video.
2 more elements
Dependencies are inferred from the claim text.