What exactly do you mean by 'Accuracy'?
One common source of confusion when looking at scanner specification sheets is scanner accuracy.
The terms ACCURACY, PRECISION, REPEATABILITY, and NOISE are often referred to as accuracy and different scanner manufacturers or mobile mapping suppliers can often use these terms to mean different things.
Accuracy describes the closeness of a measured value to a standard or known value. For example, if the distance between two points is known and equals 10m and your measurement is 8.5 m for the same distance than it means your measurement is not accurate because it is not close it its true/known value.
Precision, sometimes called “repeatability” or “noise” relates to consistency in results that are being repeated. Using the example above, if you measure a given distance 10 times and get 8.5m every time, then your measurements are very precise. This attribute is independent of accuracy. Your measurements can be precise but inaccurate.