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System and method for providing picture output indications in video coding

A picture and coding technology, applied in the field of video coding

Active Publication Date: 2009-09-30
NOKIA TECH OY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

A spatial frame freeze request is similar to a full frame request, but involves only the indicated rectangular area of ​​the frame

Method used

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  • System and method for providing picture output indications in video coding
  • System and method for providing picture output indications in video coding
  • System and method for providing picture output indications in video coding

Examples

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Embodiment Construction

[0032] figure 1 A general multimedia communication system is shown. Such as figure 1 As shown, data source 100 provides source signals in analog, uncompressed digital, or compressed digital formats, or any combination of these formats. The encoder 110 encodes the source signal into an encoded media bitstream. The encoder 110 is capable of encoding more than one media type, such as audio and video, or more than one encoder 110 may be required to encode different media types of the source signal. Encoder 110 may also composite the generated output, such as graphics and text, or an encoded bitstream capable of generating composite media. In the following, only the processing of one encoded media bitstream of one media type is considered to simplify the description. However, it should be noted that typically a real-time broadcast service includes several streams (typically at least one audio, video and text subtitle stream). It should also be noted that the system may include...

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Abstract

The present invention discloses an explicit signaling element for controlling decoded picture output and applications when picture output is not desired. A signal element, such as a syntax element in a coded video bitstream, is used to indicate (1) whether a certain decoded picture is output; (2) whether a certain set of pictures are output, wherein the set of pictures may be explicitly signaled or implicitly derived; or (3) whether a certain portion of a picture is output. The signal element may be a part of the coded picture or access unit that it is associated with, or it may reside in a separate syntax structure from the coded picture or access unit, such as a sequence parameter set. The signal element can be used both by an encoder and a decoder in a video coding system, as well as a processing unit that produces a subset of a bitstream as output.

Description

technical field [0001] The present invention relates to video coding. More particularly, the invention relates to using decoded pictures for purposes other than output. Background technique [0002] This section is intended to provide a background or context to the invention that is recited in the claims. The description herein may include concepts to be followed, however, these are not necessarily concepts that have been previously conceived or followed. Therefore, unless otherwise indicated herein, what is described in this section is not prior art to the description and claims in this application and is not admitted to be prior art by inclusion in this section. [0003] Video coding standards include ITU-T H.261, ISO / IEC MPEG-1 Visual, ITU-T H.262 or ISO / IEC MPEG-2 Visual, ITU-H H.263, ISO / IEC MPEG-4 Visual and ITU- T H.264 (also known as ISO / IEC MPEG-4 AVC). Furthermore, there are currently ongoing efforts regarding the development of new video coding standards. One...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04N7/24
CPCH04N19/00436H04N7/26351H04N19/00781H04N7/50H04N19/00884H04N19/00442H04N19/70H04N19/61H04N19/33H04N19/34H04N19/30H04N19/46
Inventor M·安尼克塞拉Y-K·王
Owner NOKIA TECH OY
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