基于FPGA+ARM的实时大视场可视化图像融合系统设计

Design of real-time large field visualization image fusion system based on FPGA＋ARM

大视场可视化系统设备效果依赖于复杂的硬件系统和庞大的图像处理系统,成本相对较高,低成本的高分辨率图像实时采集处理系统是目前图像处理领域的热门研究课题.笔者拟以FPGA为系统图像处理和控制的核心芯片,ARM处理器为通信控制接口（实现上位机对图像处理模块的通信和控制）,重点阐述FPGA内部模块设计.通过调用FPGA内嵌的XtremeDSP模块,可以高速地完成对图像数据的乘累加运算.实践结果表明：该系统可以应用在大视场可视化系统中,完成对高分辨率高帧率图像的实时处理,处理分辨率可达到1024×768,刷新率达60Hz,系统性能稳定,降低了成本.

The effect of large field visualization system depends on complex hardware system and huge image processing system,which costs a great.Therefore,the study on real-time image acquisition and processing system of low cost and high resolution becomes the hot subject in the field of image processing.The authors take FPGA as the image processing and controlling core chip of the system,and ARM processor as the communication controlling interface;thus the host computer can achieve communication with and controlling of the image processing module.Emphasis is laid on the detailed description of the FPGA interior module design,and its image processing module is the core of overall system.Xtreme DSP module embedded in FPGA is used to realize multiply-accumulation of the image data.The practice results show that the system can be used in large field visualization system and in the real-time processing of high-resolution and high-frame image.The resolution rate is 1024×768,and refresh rate is 60 Hz.The system is stable,and it reduces the design cost.