Real-time Video Transmission in Multihomed Vehicular Networks

Video surveillance, convenience and rich information, has been widely used in security, protection, monitoring and other occasions, and has already been one of the most important precautionary measures in commercial, residential and transportation areas. However, considering the massive data transmission needs and higher real-time requirements for video surveillance, a remote video surveillance plan has been put forward on the analysis basis of Microsoft DirectShow and Image Compression. This plan adopts the C/S structure, adapts to the requirements of real-time video transmission, with a better fluency. In addition, the picture clarity satisfies the application requirements.

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An IP DiffServ framework for real-time video transmission

International Conference on Communication Technology Proceedings, 2003. ICCT 2003. ◽

10.1109/icct.2003.1209860 ◽

2004 ◽

Cited By ~ 1

Author(s):

Min Chen ◽

Gang Wei ◽

Xiaosong Zhu

Keyword(s):

Real Time ◽

Video Transmission

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A Real-Time Video Transmission Test Bed Using GNU Radio and USRP

Multimedia over Cognitive Radio Networks ◽

10.1201/b17749-16 ◽

2014 ◽

pp. 308-323

Keyword(s):

Real Time ◽

Video Transmission ◽

Gnu Radio ◽

Test Bed ◽

Transmission Test

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Accurate Real-Time Traffic Speed Estimation Using Infrastructure-Free Vehicular Networks

International Journal of Distributed Sensor Networks ◽

10.1155/2015/530194 ◽

2015 ◽

Vol 2015 ◽

pp. 1-19 ◽

Cited By ~ 2

Author(s):

Zongjian He ◽

Buyang Cao ◽

Yan Liu

Keyword(s):

Real Time ◽

Large Scale ◽

Vehicular Networks ◽

Route Planning ◽

Speed Estimation ◽

Traffic Condition ◽

Real Time Traffic ◽

Traffic Trace ◽

Traffic Speed ◽

Traffic Speed Estimation

Real-time traffic speed is indispensable for many ITS applications, such as traffic-aware route planning and eco-driving advisory system. Existing traffic speed estimation solutions assume vehicles travel along roads using constant speed. However, this assumption does not hold due to traffic dynamicity and can potentially lead to inaccurate estimation in real world. In this paper, we propose a novel in-network traffic speed estimation approach using infrastructure-free vehicular networks. The proposed solution utilizes macroscopic traffic flow model to estimate the traffic condition. The selected model only relies on vehicle density, which is less likely to be affected by the traffic dynamicity. In addition, we also demonstrate an application of the proposed solution in real-time route planning applications. Extensive evaluations using both traffic trace based large scale simulation and testbed based implementation have been performed. The results show that our solution outperforms some existing ones in terms of accuracy and efficiency in traffic-aware route planning applications.

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Research on Key Technology of Real-time Video Transmission Based on Mobile Terminal

Journal of Electronic Research and Application ◽

10.26689/jera.v1i2.56 ◽

1970 ◽

Vol 1 (2) ◽

Author(s):

Cao Pengfei

Keyword(s):

Video Coding ◽

Real Time ◽

Video Transmission ◽

Loss Rate ◽

Signal To Noise Ratio ◽

Mobile Terminal ◽

Frame Rate ◽

Minimum Requirement ◽

Encapsulation Method ◽

Real Time Transmission

In order to solve the problems existing in real-time video transmission of mobile terminals, this paper proposes the encapsulation method which is suitable for H.263 and H.264 video coding, and re- duces the extra waste of real-time transmission proto- col packets and to improve the transmission efficien- cy of the video. Experimental results show that the peak signal to noise ratio (PSNR) in H.263 and H.264 video coding mode is above 30 dB at the lowest frame rate and resolution, and the minimum requirement of video transmission has been satisfied. Rate of 24 Hz, the two encoding PSNR are more than 40 dB, videotransmission quality ideal. In addition, the two packet loss rate of about10%maximum, themaximumdelay of 400 ms or less, have reached the requirements of real-time videotransmission.

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The System Design of Wireless Video Transmission Based on PTZ Control

Advanced Materials Research ◽

10.4028/www.scientific.net/amr.1006-1007.723 ◽

2014 ◽

Vol 1006-1007 ◽

pp. 723-726

Author(s):

Shi Yu Huan

Keyword(s):

Real Time ◽

Video Transmission ◽

Local Area Network ◽

High Reliability ◽

Rapid Expansion ◽

Area Network ◽

Wireless Video ◽

The Real ◽

Wireless Video Transmission ◽

Internet Of Things Technology

Along with the rapid expansion of automation, communication, the Internet of things technology, and video image processing technology, the wireless video transmission technology based on the embedded system is becoming increasingly more mature. In this paper, what has been designed and managed to be perfectly applied is a transmission system of high reliability and convenience which based on the technique of pan-tilt control and integrated the technology of wireless LAN, embedded technology, video transmission technology. The paper briefly introduces the research background of the system, current research status at home and abroad, the development trend and the significance of this design project. What is more is that the article goes through the hardware and software design of the pan-tilt control circuit and software of real-time video transmission in a detailed way. The biggest is that this project has made the real-time video transmission in the local area network came true and you can check the real-time dynamic video images by browsing the web through you mobile phone.

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