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基于 FPGA 的多路视频图像高速同步采集系统 被引量:3

High Speed and Synchronous Multichannel Video Acquisition System Based on FPGA Technology
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摘要 给出了一种能够高速同步采集多路黑白视频信号,采集的精度为8位,采样率为14.768MHz.此系统设计以现场可编程门阵FPGA为核心元件,将系统的采样控制逻辑与压缩存储逻辑集成在一块FPGA芯片上,与采用单片机或通用器件实现相比,具有速度快、可靠性高、结构简单、体积小等优点,而且设计周期短、灵活性大,我们已经将其应用在高速高精度的三维净空测量中. An acquisition system that can synchronously capture multichannel videos with 8 bit sample accuracy and 14.768 MHz sample frequency is introduced. In the system the FPGA is the key component that implements sample control logic and compress and store logic, which makes design cycle shorter and reliability higher. Compared with the system using the microcontroller or the general devices, the present one has the advantages of higher speed , higher liability, simpler structure and smaller volume. This design has been already successfully used in high speed and high accuracy three dimensional measurement with multichannel CCD cameras.
出处 《北方交通大学学报》 CSCD 北大核心 1998年第4期66-69,共4页 Journal of Northern Jiaotong University
基金 铁道部资助项目
关键词 FPGA 净空测量 高速同步采集 视频信号 铁路隧道 multichannel video acquisition CCD(Charge Couple Device) FPGA(Field Programmable Gate Array) pipe line clearance measure
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参考文献2

  • 1孙琮琦,视频多媒体硬件技术与软件编程,1995年
  • 2樊昌信,数字专用集成电路设计,1993年

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