一种基于FPGA的双波段实时红外图像融合系统  

An Dual-waveband Real-time IR Image Fusion System Based on FPGA

作　　者：宋亚军[1] 高昆[1] 倪国强[1] 

机构地区：[1]北京理工大学信息科学技术学院,北京100081

出　　处：《激光与红外》2005年第11期906-909,共4页Laser & Infrared

摘　　要：文章对当前实时图像融合技术和实现方法进行了综述,提出了一种采用FPGA设计的双波段实时红外图像融合系统的设计方法。该系统将核心算法、外设管理等功能单元集成在1片V irtex-II Pro FPGA上实现,并提供了I2C等接口通道,使系统更加紧凑、灵活、可靠和低功耗。对拟采用的拉普拉斯金字塔融合算法的复杂性、实时性、资源占用率等指标进行了评估,并对系统的双通道视频数据流同步、帧缓冲与数据的实时传输等关键功能单元的实现方法进行了介绍。The technologies and methods of real-time image fusion are introduced, and a novel design method of dual- waveband real-time IR image fusion system is proposed. In this system the FPGA chip of Virtex-Ⅱ Pro is applied to realize the main functions, including the kernel algorithm and the peripheral management, etc. Also it provides I^2C as the host control interface. Compared with the traditional ones, this system is more compact, flexible and relible and has low power. The Laplacian pyramid fusion algorithm being ported into this system is anatomized in the fields of complexity, real-time performance and resource occupancy factor in detail. Some methods to realize the key function units are also discussed, including the data synchronization of the two video channels, the frame buffer and the realtime transmission of data.

关 键 词：图像融合 融合系统 红外图像 拉普拉斯金字塔 

分 类 号：TP391.41[自动化与计算机技术—计算机应用技术]