Evaluation of the Satellite ZY-1 CCD Image Used in Crop Acreage Monitoring

The Satellite ZY-1 CCD image used in crop acreage monitoring in the method of comparative analysis between the satellite ZY-1 CCD image and Landsat TM image was evaluated. The main content of the evaluation included image rectification, image identification, acreage calculation from image and measurement on the ground of the typical landuse type, and image interpretation of sample area. The evaluation result shows that the image rectification precision is about 1.18 pixel, more than 95% of the typical landuse type can be identified, and the acreage mesurement precision is about 94.5%. It indicates that the Satellite ZY-1 CCD image can be used in crop acreage monitoring. Since the evaluation was just based on one single image, so the result may have some localization.