基于重构等高线的DEM精度评估模型

Accuracy Evaluation Model of DEM Based on Reconstructed Contours

摘要: 利用重构等高线提出了一种评估数字高程模型精度的模型。基于该评估模型,数字高程模型的精度能利用提出的重构误差——等高线的偏移误差面积与原等高线的长度之比来评估。提出的重构误差具有惟一性,较之于常用的中误差具有更好的适宜性和可信度。

Abstract: A new evaluation model for the accuracy of digital elevation model is built based on the reconstructed contours.By the model,the accuracy of digital elevation model can be evaluated by the proposed reconstructed error that is the ratio of the area error between the reconstructed contour and the original contour to the length of original contour.The proposed error is unique.Compared with the root mean square error,the proposed method to evaluate digital elevation model is more reasonable and more reliability.