A Quality Adaptive Wireless Video Coding Method

A wireless video and coding method technology, applied in the field of wireless video coding, can solve problems such as the improvement of self-adaptive coding methods that pay less attention to video content, and achieve the effects of improving user experience quality, easy processing, and improving coding quality

Active Publication Date: 2017-05-10
成都随锐云科技有限公司
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AI Technical Summary

Problems solved by technology

[0003] At present, most of the research on mobile video QoE focuses on the improvement of network performance, and less attention is paid to the improvement of adaptive coding methods based on video content.

Method used

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  • A Quality Adaptive Wireless Video Coding Method
  • A Quality Adaptive Wireless Video Coding Method
  • A Quality Adaptive Wireless Video Coding Method

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Embodiment Construction

[0030] In order to facilitate those of ordinary skill in the art to understand and implement the present invention, the present invention will be described in further detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the implementation examples described here are only used to illustrate and explain the present invention, and are not intended to limit this invention.

[0031] please see figure 1 , the technical scheme that the present invention adopts is: a kind of wireless video coding method of quality self-adaptation, comprises the following steps:

[0032] Step 1: Get the reconstructed frame P of the encoded image i ~P n (1≤i≤n);

[0033] Step 2: Using the dynamic texture model, reconstruct the frame P through the encoded image i ~P n Synthesize the virtual reconstructed frame P′ of the n+1th frame image n+1 ;

[0034] Step 3: Using a sampling window of 16x16 pixels, calculate the SSIM value of each sampling wind...

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Abstract

The invention discloses a quality-self-adapting wireless video coding method. Firstly, the dynamic texture synthesis method is adopted, a virtual reconstruction frame of a frame to be coded is constructed through a reconstruction frame of a coded image, then with the SSIM being used as the index, a threshold value is set to determine low-quality macro blocks in the virtual reconstruction frame, and finally, coding parameters of the low-quality macro blocks are regulated, and the macro blocks are coded more finely in the coding process, so that complex textures and marginal area macro blocks are better processed, and the user experience quality of the whole image is improved.

Description

technical field [0001] The invention belongs to the technical field of digital video, relates to a video encoding method, in particular to a quality adaptive wireless video encoding method. Background technique [0002] With the popularization of 3G networks and the rapid development of 4G networks, mobile multimedia services have also increased dramatically, such as real-time video calls, online video on demand, mobile TV, etc. ) have high requirements. At the same time, the limitation of mobile network bandwidth and the complexity of the application environment also put forward extremely high requirements on the bit rate and real-time performance of the video stream. H.264 / AVC is currently one of the most widely used international general video coding standards. Compared with the old standard, it can provide high-quality video at a lower bit rate. However, when dealing with macroblocks with complex textures or rich edge information, traditional H.264 content adaptive met...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04N19/13H04N19/132H04N19/124H04N19/176
Inventor 王中元朱婧雅胡孟凌
Owner 成都随锐云科技有限公司
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