Infrared aerial images — Digital CIR orthophotos of the city of Braunschweig from the 2008 photo flight

In a digital flight on 8 May 2008, hundreds of individual images were taken vertically from an aircraft. The high-resolution images with 10 cm of ground pixels were digitally equalised and precisely assembled using GPS data. Parallel to the images in real colors (RGB), so-called false color or infrared images (CIR) were taken simultaneously via special infrared channels of the aerial camera during the flight. Such recordings are used in environmental planning. For example, the state of vitality of trees from the pictures can be interpreted. The chlorophyll of the leaves reflects the infrared radiation to an increased degree. This effect makes the otherwise dark green leaves appear in light red.2008年5月8日的一次数字化航空飞行任务中，科研人员从航空器上垂直拍摄了数百张单幅影像。这批地面像元分辨率达10厘米的高分辨率影像经数字化匀色处理后，结合GPS数据实现了精准拼接。本次飞行同步采集了真彩色（RGB）影像，并通过航空相机的专用红外通道获取了假彩色红外影像（CIR）。此类影像记录可应用于环境规划领域，例如通过影像解译树木的活力健康状态：叶片中的叶绿素会显著反射红外辐射，这一效应可令原本呈深绿色的叶片呈现浅红色外观。