提出用重建的图像的质量来估价运动参数误差，并给出了误差面积和轮廓转折率误差二个函数。
A method of estimation of motion parameter error based on the quality of reconstructed image is suggested. That area error and contour transition turn error is used to be quality criteria.
针对故障分布模型不唯一这一特点，本文提出采用图分析和误差面积比指数从定性和定量两方面确定其最优分布模型。
The model of failure distribution is not the single one, so the optimum distribution model is determined by applying method of chart analysis and error area ratio.
利用本算法，图像面积和周长的计算误差最大不超过2 % 。
Using this algorithm, the computation error of image area and girth is less than 2 percents.
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