| 基于DSP与PCI的视频采集卡设计与实现 |
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| 引用本文： | 黄洁.基于DSP与PCI的视频采集卡设计与实现[J].计算机测量与控制,2010,18(1). |
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| 作者姓名： | 黄洁 |
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| 作者单位： | 武汉职业技术学院电子系,湖北,武汉,430074 |
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| 摘 要： | 设计了一种基于DSP和PCI的视频采集卡,以MPEG-4作为视频压缩编码,很好地解决了视频采集对实时性传输的要求;在系统硬件中采用SAA7113 H视频转换芯片,把采集的视频图像转化为数字信号,然后存入两块高速SRAM;同时由CPLD负责控制切换高速双SRAM,以便交替存储视频图像数据;然后用DSP TMS320VC5502作为视频图像处理器,完成对采集视频图像的MPEG-4压缩编码,并且在CPLD控制下将压缩完的数据通过PLX9054接口芯片传输到PC机总线;在系统的软件设计中采用了MPEG-4视频压缩编码算法;最后通过对系统的功能测试和稳定性测试,确保系统设计目标的实现;测试结果表明,系统各项功能和性能指标均符合设计要求。
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| 关 键 词： | 视频采集卡 DSP PCI 视频转换芯片 MPEG-4压缩编码 |
Design and Implementation of Video Capture Card Based on DSP and PCI |
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| Huang Jie.Design and Implementation of Video Capture Card Based on DSP and PCI[J].Computer Measurement & Control,2010,18(1). |
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| Authors: | Huang Jie |
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| Affiliation: | Wuhan Institute of Technology/a>;Wuhan 430074/a>;China |
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| Abstract: | A kind of video capture card based on DSP and PCI was designed,and MPEG-4 acted as video compressing code,and resolved well the requirement of the video capture for real-time transmission.In system hardware,SAA7113H video conversion was used and converted the video images into the digital signals,then saved them into two high-speed SRAM;at the same time CPLD was in charge of controlling switching high-speed double SRAM in order to save video image data by turns.Then DSP TMS320VC5502 was used to act as video... |
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| Keywords: | video capture card DSP PCI video conversion chip MPEG-4 compressing code |
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