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Fine granutar scalability optimal transmission/tream type order

A streaming and hierarchical coding technology, applied in the field of video coding, can solve problems such as reducing coding efficiency

Inactive Publication Date: 2003-08-13
FUNAI ELECTRIC CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0010] The disadvantage associated with the FGS codec is its reduced coding efficiency compared to non-scalable codecs

Method used

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  • Fine granutar scalability optimal transmission/tream type order
  • Fine granutar scalability optimal transmission/tream type order
  • Fine granutar scalability optimal transmission/tream type order

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Embodiment Construction

[0023] A method in accordance with the principles of the present invention for streaming enhancement layer residual time and quality signal-to-noise ratio (SNR) video frame data (in the case of FGS encoding) over a variable bandwidth computer network such as the Internet will now be described. FGST and FGS frame data). The method uses Figure 2B The hybrid temporal-SNR scalable video coding scheme in , enables the temporal correlation in the enhancement layer to be significantly improved. The entire disclosure of commonly assigned co-pending US Patent Application No. 09 / 000000 is hereby incorporated by reference. Although Figure 2B The video coding scheme in Fig. 1 shows only one time frame between SNRs, but a time-SNR scalable video coding scheme with two or more time frames between SNR frames can also be used in this method.

[0024] image 3 is a flowchart depicting the steps of a method in accordance with the principles of the invention. Steps AA-DD are performed on ...

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Abstract

A method for streaming enhancement layer video frame data on a variable bandwidth network involves coding original uncoded video data with a non-scalable codec to generate I and P base layer frames; generating residual temporal B frames and SNR I and P frames from the original uncoded video data and the base layer frames; coding the temporal and SNR frames with a scalable codec; determining an available bandwidth of the variable bandwidth network; transmitting at least portions of the scalable coded temporal frames when the available bandwidth is a first bandwidth ranging between a minimum bit-rate allocated for transmitting only base layer frames and a predetermined bit-rate which is below a maximum bit-rate of the network; and additionally transmitting remaining portions of the scalable coded temporal frames and at least portions of the scalable coded SNR frames when the available bandwidth is a second bandwidth extending between the predetermined bit-rate and the maximum bit-rate of the network.

Description

[0001] This application claims the benefit of US Provisional Application No. 60 / 234606, filed September 22,2000. [0002] Related applications: [0003] Commonly assigned co-pending US Patent Application No. 09 / 590825, entitled "Hybrid Temporal-SNR Fine Granular Scalability Video Coding," filed June 9, 2000 . Field of invention: [0004] The present invention relates to video coding, and more particularly to a method for streaming enhancement layer residual temporal and quality signal-to-noise ratio (SNR) video frame data in a variable bandwidth computer network such as the Internet -noise-ratio) method. Background of the invention: [0005] Scalable video coding has been used to compress video data sent over variable bandwidth computer networks such as the Internet. One such video coding scheme is fine-grained scalable (embedded) video coding. Fine granular scalable (FGS: fine granular scalable) video coding has been adopted by the ISO MPEG-4 standard as the core video ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04N19/50H04N7/24H04N19/102H04N19/146H04N19/166H04N19/172H04N19/196H04N19/30H04N19/503H04N19/577H04N19/593
CPCH04N19/00781H04N7/26164H04N19/00218H04N7/5046H04N19/0006H04N19/00775H04N19/00448H04N19/002H04N7/26696H04N19/0043H04N7/26351H04N19/00454H04N19/00442H04N19/00418H04N19/00266H04N19/00175H04N21/2662H04N19/159H04N19/147H04N19/172H04N19/115H04N19/61H04N19/60H04N19/37H04N19/154H04N19/29H04N19/31H04N19/34H04N19/36H04N21/234327H04N21/2402
Inventor M·范德沙尔
Owner FUNAI ELECTRIC CO LTD
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