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Assembling multiview video coding sub-bistreams in mpeg-2 systems

A technology of video decoding and sub-bit stream, applied in the field of video data transmission

Active Publication Date: 2012-11-28
QUALCOMM INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

For example, MPEG-4 specifies encoding and decoding methods that differ from those of MPEG-2, but video encoders that implement the techniques of the MPEG-4 standard can still take advantage of MPEG-2 transport layer methods

Method used

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  • Assembling multiview video coding sub-bistreams in mpeg-2 systems
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  • Assembling multiview video coding sub-bistreams in mpeg-2 systems

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Embodiment Construction

[0028] The techniques of this disclosure are generally directed to enhancing multi-view video coding (MVC) in MPEG-2 (Motion Picture Experts Group) systems (ie, systems that conform to MPEG-2 in terms of transport layer details). For example, MPEG-4 provides a standard for video encoding, but it is generally assumed that a video encoder compliant with the MPEG-4 standard will utilize the MPEG-2 transport layer system. Accordingly, the techniques of the present invention are applicable to MPEG-2, MPEG-4, ITU-T H.263, ITU-T H.264 / MPEG-4, or any other video that utilizes MPEG-2 Transport Streams and / or Program Streams Encoding standard video encoder.

[0029] In particular, the techniques of this disclosure may be used to modify syntax elements at the transport layer for MPEG-2 transport streams and program streams. For example, the techniques of this disclosure include a descriptor transmitted in a transport stream to specifically identify each view of multi-view video data sen...

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Abstract

A demultiplexer may assemble view components of sub-bitstreams. In one example, an apparatus comprises a demultiplexer that produces a multiview video coding (MVC) standard compliant bitstream from a received bitstream comprising a primary sub-bitstream and an embedded sub-bitstream. To produce the MVC standard compliant bitstream, the demultiplexer determines whether a view component of the primary sub-bitstream has a view order index that is greater than a view order index of a view component of the embedded sub-bitstream, and to add the view component from the sub-bitstream for which the view order index is lower to the produced bitstream. The received bitstream may comprise delimiter network abstraction layer (NAL) units between each view component to differentiate the view components. The apparatus may further comprise a video decoder to decode the bitstream produced by the demultiplexer.

Description

[0001] Related applications [0002] This application claims the benefit of U.S. Provisional Application No. 61 / 221,449, filed June 29, 2009, and U.S. Provisional Application No. 61 / 186,613, filed June 12, 2009, both of which The entire text of this is hereby expressly incorporated by reference in its entirety. [0003] Cross References to Related Applications [0004] This patent application is related to the following co-pending U.S. patent application: "MULTIVIEW VIDEO CODING OVER MPEG-2 SYSTEMS" filed concurrently with this application by Ying Chen, which Attorney Docket No. 092514, assigned to the present assignee, is expressly incorporated herein by reference. technical field [0005] The present invention relates to the transmission of encoded video data. Background technique [0006] Digital video capabilities can be incorporated into a wide variety of devices, including digital television, digital direct broadcast systems, wireless broadcast systems, personal ...

Claims

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Application Information

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IPC IPC(8): H04N7/26H04N7/50H04N21/2343H04N21/2362H04N21/434H04N21/845
CPCH04N19/00781H04N7/26313H04N7/26345H04N21/21805H04N21/4347H04N7/50H04N19/00424H04N7/26946H04N19/00545H04N21/8451H04N21/234327H04N21/2365H04N19/00884H04N21/2362H04N19/00769H04N21/4345H04N19/30H04N19/46H04N19/597H04N19/61H04N19/70H04N7/24
Inventor 陈英马尔塔·卡切维奇陈培松
Owner QUALCOMM INC
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