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A method to improve the performance of svc by using the information of the decoder

A decoding end and high-performance technology, applied in image communication, digital video signal modification, electrical components, etc., can solve problems such as no research and application, achieve good video quality, improve video rate distortion, and improve video rate distortion performance

Inactive Publication Date: 2017-10-31
何震宇
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Problems solved by technology

However, it has not been studied in the context of scalable video coding

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  • A method to improve the performance of svc by using the information of the decoder
  • A method to improve the performance of svc by using the information of the decoder
  • A method to improve the performance of svc by using the information of the decoder

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Embodiment Construction

[0011] The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments.

[0012] as attached figure 1 As shown, a method to improve the performance of scalable video coding (Scalable Video Coding, SVC) by using decoder side information (Decoder Side Information, DSI). Creation, DSIC) module. The DSIC module provides additional decoding reference frames for the base layer and enhancement layer during encoding. In the encoding process, the encoding of I frame and P frame is similar to the SVC standard, but the encoding of B frame is encoded using the reference frame provided by the DSIC module, and the encoding of the base layer and the enhancement layer is carried out independently. In the method of the present invention, the MCFI (Motion Compensated Frame Interpolation) technology is used to generate the decoding reference frame, and the decoding reference frame can well improve the rate-distortion in the video enc...

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Abstract

The present invention provides a method for improving the performance of SVC by using the information DSI at the decoding end. The method generates a DSIC module by adding a decoding reference frame in the SVC-DSI encoder, and provides it in the encoding process of the base layer and the enhancement layer. Additional decoding reference frames, wherein, the encoding of I frames and P frames refers to the SVC standard during the encoding process, but the encoding of B frames uses the DSIC module to provide decoding reference frames; the processing of the DISC module is in the base layer and enhancement layer are independent of each other, the information of the enhancement layer will not be used by the base layer or the lower enhancement layer. The method provided by the invention can achieve the effect of improving video rate distortion. The quality of the decoded reference frame will directly affect the rate-distortion performance of the video. The method of the invention uses MCTI technology to generate the decoded reference frame. Compared with the existing technology, there is a greater improvement in video rate distortion performance, and the encoded video quality is better.

Description

technical field [0001] The invention relates to a method for improving video quality, in particular to a method for improving video quality by using additional information at a decoding end. Background technique [0002] Now, digital video applications such as multimedia information, video telephony, video conferencing, and high-definition television are becoming more and more extensive. In these applications, network and terminal performance varies and may vary over time. SVC coding provides the scalability of time, space and quality layers, and can better adapt to various changing environments. At the same time, another popular coding standard, distributed coding, has emerged. However, the distributed coding standard uses bidirectional coding prediction without the help of the initial video frame information, and there is no practical coder yet. [0003] At present, there are also some studies combining prediction and distributed coding strategies with H.264 / AVC video c...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04N19/34H04N19/147H04N19/577
Inventor 何震宇刘伟梁应毅李鑫张高伟李义
Owner 何震宇
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