the residuals of the geometric correction model do not have an autocorrelated structure after GCP optimization.
In addition, SSRS statistical inference results were also calculated
to infer the geometric accuracy of population. Taking UKMS
GCPs spatial sampling design as an example, the mean and standard
deviation of the sum of two square errors z for each pixel in the
corrected image were 0.1674 and 0.1519, respectively. The t value
was 7.794, indicating that the estimation for the entire image was
significant. In a two-tailed test, at a 95% confidence interval of the
difference, the geometric error of z for each pixel in the corrected
image was between 0.1243 and 0.2106 pixels. The upper confidence
interval of z is less than 0.5 pixels. The UKMS thus provides
an accurate geometric corrected image.
the residuals of the geometric correction model do not have an autocorrelated structure after GCP optimization.
In addition, SSRS statistical inference results were also calculated
to infer the geometric accuracy of population. Taking UKMS
GCPs spatial sampling design as an example, the mean and standard
deviation of the sum of two square errors z for each pixel in the
corrected image were 0.1674 and 0.1519, respectively. The t value
was 7.794, indicating that the estimation for the entire image was
significant. In a two-tailed test, at a 95% confidence interval of the
difference, the geometric error of z for each pixel in the corrected
image was between 0.1243 and 0.2106 pixels. The upper confidence
interval of z is less than 0.5 pixels. The UKMS thus provides
an accurate geometric corrected image.
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