| 监播系统中视频关键帧抽取器的设计与实现 |
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| 引用本文： | 柯磊,庞龙.监播系统中视频关键帧抽取器的设计与实现[J].电视技术,2015,39(12):90-94. |
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| 作者姓名： | 柯磊 庞龙 |
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| 作者单位： | 1. 攀枝花学院交通与汽车工程学院,四川攀枝花,617000
2. 中国传媒大学信息工程学院,北京,100024 |
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| 摘 要： | 为满足发展迅猛的广电行业对电视频道节目内容的实时监测,提出并设计了一种针对全媒体监播系统的模拟信号关键帧抽取器.该设备采用运行嵌入式Linux系统的ARM处理器S3C2440作为主处理器,同时FPGA芯片EP3C25作为协处理器,极大地提高了设计灵活性和系统的实时处理性能.抽取的视频图像通过视频解码器ADV212压缩后,最终存储到本地SATA硬盘.在验证部分中,闭环测试的试验结果证明了这种设备的正确性和工程实用性.
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| 关 键 词： | 全媒体监播系统 抽帧器 嵌入式系统 Linux操作系统 ARM处理器 |
| 收稿时间： | 2014/10/8 0:00:00 |
| 修稿时间： | 2014/10/8 0:00:00 |
Design and Implementation of Video Key Frame Extractorfor Broadcast Monitoring System |
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| KE Lei and PANG Long.Design and Implementation of Video Key Frame Extractorfor Broadcast Monitoring System[J].Tv Engineering,2015,39(12):90-94. |
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| Authors: | KE Lei and PANG Long |
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| Affiliation: | School of Transportation and Automobile Engineering,Panzhihua University,Pan Zhihua,School of Information Engineering,Communication University of China |
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| Abstract: | A video frame extractor applying analog video input signals for omni media monitoring system is given in order to meet the increased requirements for rapid development of radio television industries. The extractor employs advanced RISC machine (ARM) processor S3C2440 with embedded Linux operating system as host processor, field programmable gate array (FPGA) EP3C25 as coprocessor, increasing the design flexibility and real-time performance. These extracted video images are compressed using a video encoder ADV212, and finally stored in local serial advanced technology attachment (SATA) hard disks. In the verification part, the loop-locked experimental results indicate the validity and engineering applicability of the designed video frame extractor. |
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| Keywords: | Omni media monitoring system key frame extractor embedded system Linux operating system (OS) advanced RISC machine (ARM) processor |
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