基于FPGA的视频信号采集技术研究

Technology of Video Signal Acquisition Based on FPGA

便携式裸眼3D设备的电路需要完成立体视频文件的解码播放和信号的实时处理,采用ARM+FPGA结构更有利于电路的研制。ARM系统支持Windows CE、安卓等操作系统,并具有LCD接口,通过FPGA采集ARM视频信号并暂存于随机存储器中,完成3D图像列插值、缩放后再输入3D液晶屏。探讨了使用FPGA器件完成数字视频信号的采集方法,得出数字视频采集的可行逻辑设计法,集成ARM与FPGA的综合优势来完成3D电路设计。系统性能经过初步验证,具有很好的可行性。

The circuit of portable naked-eye 3D device needs to complete the stereoscopic video file decoding and the real-time processing of video sig- nal. It uses the ARM ＋ FPGA structure, which is more beneficial to design the circuit. The ARM system supports various operating system, such as Win- dows CE, Android and so on, it also has LCD interface. The output video signal from ARM is collected by FPGA and is stored in the random access memory, which will be inputted to 3D LCD screen after finishing 3D image interpolation and scaling. The acquisition method of digital video signal is dis- cussed in this paper, which is completed by the FPGA. And it gets a logical method which integrates the advantages of ARM and FPGA to design the 3D circuit. Through the initial proof, the system performance has a good feasibility.