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A telemedicine 3D video service transmission method based on software-defined network

A software-defined network and video service technology, applied in the field of telemedicine 3D video service transmission based on software-defined network, can solve problems such as poor experience quality, single-path transmission in transmission mode, and network congestion.

Active Publication Date: 2018-06-05
ZHEJIANG WANLI UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the existing 3D medical video requires virtual viewpoint rendering, and the processing capacity of the transmission network and rendering nodes is limited. Poor quality of user experience in medical 3D video communication

Method used

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Examples

Experimental program
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Embodiment Construction

[0027] A telemedicine 3D video service transmission method based on software-defined network, characterized in that: its operation steps are as follows:

[0028] (1) Establish a software-defined network and obtain network link information and all reachable transmission paths of 3D video services from the 3D video acquisition end to the expert user viewing end in the currently established network;

[0029] (2) Through the software-defined network, obtain the available depth extraction and compression service nodes, viewpoint rendering and compression nodes on each reachable path, and collect their load and service response time information, so as to calculate the processing delay of each service , the specific operation steps are as follows:

[0030] 1) Through real-time detection by a third-party tool set on the network switch, the CPU usage percentage P of the deep extraction and compression service undertaken by the current server is obtained cpu_d and the percentage of CPU...

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Abstract

The invention relates to a remote medical 3D video service transmission method based on SDN. An SDN controller selects a path with the lowest QoS cost from all feasible paths to transmit a 3D video image group, depth extraction and compression service nodes and viewpoint drafting and compression service nodes are obtained, network service nodes are controlled to implement switching and path forwarding, and the whole 3D video image group is transmitted.

Description

technical field [0001] Specifically, the present invention is a software-defined network-based telemedicine 3D video service transmission method. Background technique [0002] In recent years, with the rapid development of digital imaging, 3D vision and 3D display technologies, digital 3D video technology has become a research hotspot in the academic and industrial circles. Compared with 2D video, 3D video can make the distinction between foreground and background images more obvious, with clearer boundary outlines and more delicate texture patterns, so that it can present people with better imaging quality and more vivid and natural 3D perception effects , allowing people to re-see the three-dimensional nature of natural scenes and feel a visual experience completely different from ordinary flat pictures. [0003] Traditional telemedicine systems are mostly based on 2D video communication systems for the transmission and interaction of medical information. In order to pro...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04N21/647H04N21/262H04N7/18
CPCH04N7/18H04N21/26216H04N21/64738
Inventor 刘金霞刘延伟张增年阚先宏
Owner ZHEJIANG WANLI UNIV
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