航空录像遥感技术在森林病虫害监测中的应用

An Evaluation of Airborne Videography for Detecting and MonitorIng Forest Insect and Disease

航空录像遥感技术在森林病虫害监测中的应用主要是利用高机翼轻型或小型飞机；装备高质量视频摄像系统；与全球定位系统（ＧＰＳ）连接，在影像上自动记录瞬时的精确地理坐标；并应用数字图像处理技术处理、分析影像，获取森林病虫害信息。该项技术成本较低，易掌握，能主动选择飞行作业时间及地面影像的分辨率，在多云天气亦可作业，并能实时得到图像，即时进行分析处理，作为一种空中平台可与其它监测手段互相补充，在森林病虫害的监测中有着广泛的应用前景。

The application of airborne videography on detecting and monitoring insectand disease is a remote sensing tool,combines a high-quality Super-VHS video camera systemwith Global Positioning System(GPS)navigation,image processing and geographic informa-tion systems.Videography offers many advantages than the traditional methods of pest detec-tion and monitoring.Video data can quickly be converted to a digital form for analysis and in-tegration into an IPM environment.The further studies on detection and monitoring of theimportant Chinese pests,the pine caterpillar Dendrolimus punctatus and the pine nematodeBursaphelenchus xylophilus,are underway in China, using the video equipment provided byUSDA Forest Service.The value of airborne video will continuously be demonstrated in prac-tice in China combining with the data from TM image.