【作者】 王雯； 李民赞； 赵瑞娇；

【Author】 Wang wen,Li Minzan,Zhao Ruijiao(Key Laboratory of Modern Precision Agriculture Integration Research,MOE,China Agricultural University,Beijing 100083,China)

【机构】 中国农业大学现代精细农业系统集成研究教育部重点实验室；

【摘要】 以DSP为基础的CCD光谱相机系统是以旱田作物如西红柿、小麦、玉米、果树为目标,实时采集目标的生长状态图像,利用数字图像处理技术对图像进行处理与分析,对农作物的生长情况有一个全面的把握。本文设计了一种基于DSP的双路多光谱视频图像采集系统。选用TMS320DM642作为核心器件,并由一个可见光模拟相机和近红外相机构成图像采集系统,最后通过LCD显示。该系统具有设备体积小,应用灵活简便,能够实时采集目标的生长状态图像。程序采用了TI公司提供的RF-5软件参考框架,运用模块化设计实现系统功能,针对多光谱图像匹配问题,采用基于边缘特征的相关匹配算法,实现实时处理的性能要求。更多还原

【Abstract】 The system of CCD spectral camera based on DSP took upland crops such as tomatoes,wheat,corn and fruit trees,as the goal.It could collect the growth state of target image real-time.By using techniques of digital image processing and analyzing the images,people would have a comprehensive grasp on the growth of crops.,This subject design a double channels image acquisition system based on DSP.TMS320DM642 used as a core device,and a visible camera and near-infrared camera composed the image acquisition system,then the collected images could display on a LCD.The system is well established for its small size,flexible and convenient operation.It is able to make real-time collection of growing status of crops.The program used RF-5 design framework provided by TI.The system use modular design to achieve system function.With regard to the problem of multi-spectral images matching,the system used relevant matching algorithms based on maximum mutual information,and can accomplish the requirements of real-time processing.更多还原