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US 8,621,543 B2Granted
Distributed statistical multiplexing of multi-media
AssigneeImagine Communications Corp.
InventorsDoron Segev, Ron Gutman
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Abstract
A method of distributed statistical multiplexing of video data. The method includes generating a plurality of blocks forming a pre-processed video media corresponding to an original video media, the plurality of blocks including, for one or more sub-portions of the original video media, a plurality of interchangeable blocks that represent the sub-portion. Optionally, at least some of the blocks are transmitted to at least one multiplexer and reconstructed by the at least one multiplexer, for a plurality of communication channels, from at least some of the transmitted blocks.
Claims63
A method of distributed statistical multiplexing of video data, comprising:
- generating a plurality of blocks forming a pre-processed video media corresponding to an original video program formed of consecutive sub-portions of image content, the plurality of blocks including, for each of one or more sub-portions of the original video program, a plurality of interchangeable blocks that represent the same image content of the sub-portion, but have different sizes, and can be used interchangeably without changing other sub-portions of the pre-processed video media;
- transmitting at least some of the blocks, including for one or more sub-portions of the original video program a plurality of interchangeable blocks representing the sub-portion, to at least one remote multiplexer over a standard communication link;
- reconstructing a plurality of versions of the video media by the at least one multiplexer, for a plurality of communication channels, from at least some of the transmitted blocks, the reconstruction of each version including selecting for each sub-portion of the original video program, a single block to represent the sub-portion;
- and
- transmitting the plurality of reconstructed versions of the video media on the plurality of communication channels to respective different clients,
- wherein the blocks that can be used interchangeably to represent a sub-portion, represent the same image content, but have different sizes,
- wherein generating a pre-processed video media comprises generating a plurality of blocks for at least some sub-portions of the original video program and only a single block for one or more other sub-portions,
- wherein generating a pre-processed video media comprises selecting sub-portions for which a plurality of interchangeable blocks representing the same image content are generated and wherein the selection is performed responsive to an evaluation for each sub-portion of pixel values of the frames to which the sub-portion belongs, and
- wherein transmitting at least one of the blocks to a multiplexer comprises transmitting fewer than all the generated blocks to the multiplexer, such that one or more of the generated interchangeable blocks are never transmitted to the multiplexer.
6 more elements
A statistical multiplexer, comprising:
- an input interface connected to a standard communication link;
- an output interface leading to a communication channel;
- and
- a processor configured to receive for a video media corresponding to an original video program formed of consecutive sub-portions of image content, through the input interface, a plurality of blocks including for one or more sub-portions of the original video program, a plurality of blocks having different sizes that can be used interchangeably to represent the same image content for the sub-portion without changing other sub-portions of the video media,
- selecting for each sub-portion of the original video program, a single block to represent the sub-portion,
- reconstructing a plurality of versions of the video media from the selected blocks, and
- transmitting the plurality of reconstructed versions through the output interface to respective different clients,
- wherein the processor is configured to generate a plurality of blocks for at least some sub-portions of the original video program and only a single block for one or more other sub-portions,
- wherein the processor is configured to select sub-portions for which a plurality of interchangeable blocks representing the same image content are generated and wherein the selection is performed responsive to an evaluation for each sub-portion of pixel values of the frames to which the sub-portion belongs, and
- wherein the processor is configured to transmit fewer than all the generated blocks through the output interface, such that one or more of the generated interchangeable blocks are never transmitted to the output interface.
7 more elements
Dependencies are inferred from the claim text.