In the area measurement of an object with irregular plane using area array CCD, the precision is greatly influenced by image distortion.

利用面阵CCD测量不规则平面物体面积时，图像畸变对测量精度影响很大。

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This is because of the small recording area of the electronic record device (CCD), so the recorded digital hologram resolution is very low and the reconstruction image quality is affected greatly.

这是由于电子记录器件CCD的记录面积小，所记录数字全息图的分辨率低，这大大影响了再现像的质量。

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The accuracy assessment results by match with sample plots of two years showed that it is feasible to use HJ-CCD image to monitor the change of winter wheat area in Henan province.

结合两年冬小麦地面样方进行精度检验表明，利用HJ - CCD影像来进行河南省冬小麦种植面积变化全覆盖监测是可行的。

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