基于FPGA的双目视觉同步采集系统

Binocular Stereo Vision Synchronous Acquisition System Based on FPGA

该文提出一种象素级的双目视觉同步采集和传输系统,可满足立体视觉对左右视频输入严格同步的需求。该同步系统包含粗略到精确的两级同步设计:硬件电路级的粗略同步及基于硬件描述语言级的精确同步。通过双路视频采集与显示实验证明,该同步系统效果好、可靠性高。

This paper proposes a pixel-synchronous data acquisition and transmission system for binocular stereo vision,which satisfies strict synchronous requirement for stereo vision.This synchronization system uses a coarse-to-fine two-level synchronous design： the hardware circuit design of coarse level and the hardware description language design of elaborate level.The former includes clock synchronization and external trigger synchronization.The latter utilizes a multi-level synchronization control strategy from field-level to pixel-level synchronization.Specifically,the latter consists of a field-synchronous acquisition of the two channels video input,a two channels ping-pong buffers switch control module,and a pixel-synchronous bit-splicing and transmission.The experiments of synchronous acquisition and display demonstrate the high reliability and great performance of this synchronization system.