从图像工程质量评价和影像应用质量评价两个方面，对环境一号卫星CCD影像的质量进行了评价与分 析，通过将其与同时相Landsat TM影像的相关特征参数进行比较，客观评价了环境一号卫星CCD影像的质量。图像工程质量评价从影像的 统计特征、纹理特征和能量特征三方面进行，结果表明该卫星影像能够提供地物目标的形状、细节、纹理特征；影像应 用质量评价则是通过将该卫星影像应用于北京市城市绿地信息提取的具体工作来进行的，结果表明该卫星影像的 绿地信息提取精度较高，总分类精度达到84.45%，适用于城市绿地信息的提取。

The quality of the images obtained by the CCD sensor onboard HJ-1 satellite is evaluated and analyzed in two aspects of image project quality and image application quality. By comparing the result with that of the same temporal Landsat TM image, the quality of the images from the CCD sensor onboard HJ-1 satellite is evaluated objectively. The image project quality evaluation is carried out in three aspects of statistical feature, texture feature and energy feature. The result shows that HJ-1 CCD images can exhibit the shapes, details and textures of objects. The image application quality evaluation is carried out by using HJ-1 CCD images to extract the urban vegetation information in Beijing. The result shows that its information extraction accuracy is better and its total classification accuracy is up to 84.45% which is suitable for the extraction of unban vegetation information.