高分-1号遥感影像在林业二类调查中的应用研究

Application of GF-1 images in forest resource inventory

国产GF-1号遥感影像的高空间分辨率和丰富的光谱特征为林业资源调查与林业信息化建设提供了新的技术支持。结合地面调查数据和多期GF-1遥感影像数据,在辐射校正、几何校正和影像融合的基础上,采用目视解译和自动解译提取林业资源分布信息。实验结果表明,在建立准确的解译标志和合理的分类器的基础上,高分1号遥感影像经过目视解译和自动解译结果能够满足林业二类调查的精度,有助于提高林业资源二类调查的信息化水平。

The high spatial resolution and abundant spectral characteristics of GF-1 image provide new technical support for forestry investigation.Combined with ground survey data and multi-phase GF-1 images,a series of steps of image processing are employed to reduce the errors of radiometric and geometric distortion.After the image fusion,visual and automatic interpretation are used to extract the information of forestry resources.The results show that visual and automatic interpretation can satisfy the precision of forest resource inventory.