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Stereo Video Quality Adaptive Algorithm Based on Fuzzy Control

An adaptive algorithm and stereoscopic video technology, applied in stereoscopic systems, image communication, selective content distribution, etc., to achieve good visual quality experience, ensure bandwidth utilization, and improve experience quality

Active Publication Date: 2018-04-13
北京传奇优声文化传媒有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

But due to multi-view coding, in 3D environment, the client will generate more multi-view bitstream versions with different bitrates

Method used

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  • Stereo Video Quality Adaptive Algorithm Based on Fuzzy Control
  • Stereo Video Quality Adaptive Algorithm Based on Fuzzy Control
  • Stereo Video Quality Adaptive Algorithm Based on Fuzzy Control

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Embodiment Construction

[0035] specific implementation plan

[0036] In order to make the technical solutions and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0037] A stereoscopic video quality adaptive algorithm based on fuzzy control, the specific steps are:

[0038] Step 1: Before video adaptive transmission, the server side prepares resources for multi-view bit streams, such as figure 1 System block diagram, the specific embodiment of the present invention adopts 3 cameras arranged in a circle with the same baseline distance for video capture, and adopts 3D-HEVC standard to independently and symmetrically encode the captured video streams, and each viewpoint is encoded into L bitrate playback version (v 1 ,v 2 ,...,v L ). Each viewpoint video is cut into N video slices at the same time interval (8 seconds). Packing composite multi-view bitstreams: Two Vi...

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Abstract

The invention relates to a three-dimensional video quality adaptation algorithm based on fuzzy control. A two-input one-output fuzzy controller is designed; the two inputs refer to a remaining quantity of videos and a cache change amount of client cache respectively; the output is a control variable of a bit stream selection standard; and a membership function of the inputs and the output is designed. The fuzzy control is applied to a 3D environment, so that cached videos of a user can be stabilized better at a security value in a 3D environment, and meanwhile the bandwidth is utilized to the maximum extent. Higher-quality multi-viewpoint videos are provided for the user; the video switching is smooth and stable; and the user experience quality is improved.

Description

technical field [0001] The invention belongs to the field of self-adaptive transmission of network multi-viewpoint video, relates to the application of MPEG-DASH transmission protocol in 3D environment, and is a stereoscopic video quality self-adaptive algorithm based on fuzzy control. Background technique [0002] With the popularity of the network, the proportion of video in multimedia network transmission is increasing. In 2011, the Motion Picture Experts Group (MPEG) and the Third Generation Partnership Project (3GPP) jointly proposed HTTP-based dynamic adaptive streaming media. Transport (MPEG-DASH) protocol, which specifies the format of the media description file (MPD) and media files. [0003] The streaming media transmission mechanism based on the HTTP Dynamic Adaptive (DASH) transmission protocol is driven by the client. Before the video transmission, the server will divide the same video resource into different video slices, and encode them at different bit rates,...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04N13/194H04N21/6437H04N21/845
CPCH04N13/194H04N21/6437H04N21/8456
Inventor 侯永宏薛琳邢家明马乐乐王爽杨梦頔
Owner 北京传奇优声文化传媒有限公司