四目立体测量图像同步采集存储系统的设计

运用四目立体测量技术实现具有复杂曲面形状物体的逆向设计，在航空、航天、汽车和造船等工业领域具有广泛需求。设计了用于四目立体测量的图像同步采集存储系统，采用FPGA作为控制器，利用Camera Link接口连接摄像机和FPGA，触发采集、传输图像数据；采用外部动态随机存储器SDRAM和FPGA内部FIFO相结合缓存图像数据；采用USB2．0接口芯片实现FPGA与计算机数据通信。利用软件ModelSim完成系统各功能模块时序逻辑仿真，实验结果表明系统能够完成四目立体测量图像同步采集存储任务。

The design of image synchronous acquisition and storage system within quad-nocular stereo measurement

Make use of techniques of quad-nocular stereo measurement to realize the reversal design of objects which have complex free surface, which is widely needed in many industrial fields such as aerospace, automobile and shipbuilding.In this paper, an image synchronous acquisition and storage system is designed for quad-nocular stere-o measurement in this paper.By using FPGA has been chosen as main controller, the system utilizes Camera Link data interface circuit is used to connect cameras with FPGA to trigger to acquire and transmit image data.SDRAM and inner FIFO of FPGA serve as buffer storage to store image data.USB2.0 interface chip is applied to realize data communication between FPGA and computer.The time sequence and logic simulation of every module of the system has been completed through ModelSim software, the experimental result shows the designed system can meet the re-quirement of synchronous acquisition and image storage.