SoPC级双通道图像融合系统设计  

Design of Dual-channel Image Fusion System Based on SoPC Level

作　　者：秦庆旺[1] 倪国强[1] 高昆[1] 宋亚军[1] 肖蔓君[1] 

机构地区：[1]北京理工大学信息科学技术学院光电工程系,北京100081

出　　处：《激光与红外》2007年第B09期1013-1017,共5页Laser & Infrared

基　　金：国家973项目支持

摘　　要：针对多色焦平面探测系统的输出,实现像元级图像融合的前提是如何保证融合系统的高性能、微型化及低功耗。本文提出了一种基于X ilinxV irtex4系列FPGA实现双通道图像融合的SoPC方案,采用模块化设计,将图像处理过程按采集、非均匀性校正预处理、融合、输出等功能模块作分级流水,充分利用器件的高性能、高并行性、可深度流水等特点来保证处理的实时性;并结合仿真实验结果,从处理算法的选择、复杂度以及资源占用等方面,分析了在单片FPGA上完成双通道720×576×10bit图像流2 f/s实时融合处理的可行性,估算了SoPC系统功耗和转换为ASIC芯片后的系统功耗。The pixel level fusion of multi-color focal plane array detectors is realized on basis of high performance and low power consumption of micro image fusion system. A SoPC （System on a Programmable Chip） level dual-channel image fusion system is proposed in this paper based on Xilinx Virtex4 series FPGA. Modular design method is used in this SoPC system, which consists of functional modules including image acquisition, nonuniformity correction pre-processing, fusion and output, etc. according to the processing flow. This system can make full use of the advanced features of the device to insure real-time processing. According to the simulation results, the feasibility of the SoPC level dual-channel 720 × 576 × 10bit image fusion system is analyzed concerning the algorithm selection, the computational complexity, the resource occupation of the design. At last, the power consumption of the SoPC system and the ASIC deriving from the SoPC are estimated as well.

关 键 词：SOPC 图像融合 模块化 功耗 

分 类 号：TP751[自动化与计算机技术—检测技术与自动化装置]