当样本量较大时，QIF方法表明工作相关阵的选择等价于无偏估计方程的选择。
When the sample size is great, QIF approach shows that the selection of working correlation is same to the selection of unbiased estimating equation.
通过多个实验表明，试样的均衡性、读数误差控制范围的正确确定以及样本菌量的正确估计，都是影响实验室菌落计数精密度控制的因素。
The results show that homogeneity of samples, correct determine of control range of reading errors and correct estimation of bacterium account are elements that affect accuracy of aerobic plate count.
本发明提供的方法与装置，利用影像撷取装置以循序方式撷取数字影像，取出样本帧与当前帧，估计移动速度向量，并计算影像的位移量。
The present invention has image pick-up to obtain image in sequence, and takes sample frame and current frame to estimate moving speed vector and calculate image displacement.
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