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山东大学学报(工学版) ›› 2015, Vol. 45 ›› Issue (4): 19-24.doi: 10.6040/j.issn.1672-3961.0.2015.190

• 控制科学与工程 • 上一篇    下一篇

基于多硬件编码器协同的高效红外视频编码

孙金庆1, 周风余1, 杨阳2, 唐相猛1, 刘兆琦3   

  1. 1. 山东大学控制科学与工程学院, 山东 济南 250061;
    2. 山东大学信息科学与工程学院, 山东 济南 250100;
    3. 济南大学管理学院, 山东 济南 250022
  • 收稿日期:2015-05-14 修回日期:2015-06-29 出版日期:2015-08-20 发布日期:2015-05-14
  • 通讯作者: 周风余(1969-),男,山东沂南人,教授,博士,博导,主要研究方向为智能机器人.E-mail:zhoufengyu@sdu.edu.cn E-mail:zhoufengyu@sdu.edu.cn
  • 作者简介:孙金庆(1990-),男,山东德州人,硕士研究生,主要研究方向为复杂环境下的视频编码.E-mail:707207994@qq.com
  • 基金资助:
    国家自然科学基金资助项目(61375084)

Efficient infrared video encoding based on multiple hardware encoders

SUN Jinqing1, ZHOU Fengyu1, YANG Yang2, TANG Xiangmeng1, LIU Zhaoqi3   

  1. 1. School of Control Science and Engineering, Shandong University, Jinan 250061, Shandong, China;
    2. School of Information Science and Technology, Shandong University, Jinan 250100, Shandong, China;
    3. School of Mangement, University of Jinan, Jinan 250022, Shandong, China
  • Received:2015-05-14 Revised:2015-06-29 Online:2015-08-20 Published:2015-05-14

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摘要： 针对火灾现场无线信道环境恶劣、误码率较高等问题,提出了一种基于多硬件编码器协同的信源信道联合编码方案。采用复合控制方法,闭环控制方面,接收端将视频质量评估结果实时反馈给发送端进行发送质量调整;开环控制方面,针对反馈信道可能失败的问题,采用3个编码器对来自同一热像仪的视频进行不同压缩比的H.264编码,根据陀螺仪提供的热像仪姿态参数,选择其中最适合的一个码流送入数传电台。试验结果表明,该系统在保证带宽要求的基础上,提高了PSNR(peak signal to noise ratio)值,并提高了系统的实时性与可靠性。

关键词: 无线通信, 视频编码, 陀螺仪, 信源信道联合编码, 热像仪

Abstract: Aiming at the poor wireless channel ang high error rate at the scene of fire, a joint source channel coding based on the multi-hardware encoder was proposed. With the compound control method, the receiving end would send the video quality evaluation result to the sending end in real time from the closed-loop control. Aiming at the possible failure of feedback channel, 3 encodes were employed for the H.264 encoding of different compression ratio for the same thermal imager from the open-loop control. Meanwhile, the most appropriate code stream was selected to be loaded into the data transfer ratio according to the attitude parameters of thermal imager provided by the gyroscope. Experimental results showed that the PSNR (peak signal to noise ratio), real-time capabilitiness, and reliabilitiness were improved on the basis of the guarantee of certain bandwidth.

Key words: joint source channel coding, thermal imager, video coding, wireless communication, gyroscope

中图分类号: 

  • TN919.8
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