Combining multi-view video decoding sub-bitstreams in mpeg‑2 systems

A MPEG-2, sub-bit stream technology, applied in the direction of digital video signal modification, pulse modulation TV signal transmission, selective content distribution, etc.

Active Publication Date: 2017-03-15
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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  • Combining multi-view video decoding sub-bitstreams in mpeg‑2 systems
  • Combining multi-view video decoding sub-bitstreams in mpeg‑2 systems
  • Combining multi-view video decoding sub-bitstreams 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 combine view components of the sub-bitstreams. In one example, an apparatus includes a demultiplexer that generates bits conforming to the Multi-View Video Coding (MVC) standard from a received bitstream comprising a main sub-bitstream and an embedded sub-bitstream. flow. to generate said MVC-compliant bitstream, said demultiplexer determines whether a view component of said primary sub-bitstream has a view order index greater than a view order index of a view component of said embedded sub-bitstream, And the view components from the sub-bitstream with lower view order index are added to the generated bitstream. The received bitstream may include a delimiter network abstraction layer NAL unit between each view component to distinguish the view components. The apparatus may further include 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's 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, persona...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04N19/597H04N19/70H04N19/46H04N19/61H04N19/31H04N21/2343H04N21/2362H04N21/434H04N21/845
CPCH04N21/21805H04N21/234327H04N21/2362H04N21/2365H04N21/4345H04N21/4347H04N21/8451H04N19/30H04N19/46H04N19/597H04N19/61H04N19/70H04N7/24
Inventor 陈英马尔塔·卡切维奇陈培松
Owner QUALCOMM INC
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