Benefits of Using 3D Visualization with High-Resolution Video Measurement

Accuracy and precision are the two most important aspects of any type of measurement. In the field of visual measurement, however, picking the right measurement point is just as important. Advances in the field of remote visual inspection have been made in lensing, illumination, and imaging, such that the resulting measurements are more precise than ever. This precision, though, is only as good as the point picked. Modern videoscopes are only able to take measurements based on the points provided to them by the inspector, making the inspector, in a way, a part of the measurement system itself. 3D modelling helps make this process easier and more efficient. Picking the correct point is helpful, if not crucial, as there are certain applications where picking the appropriate point can have dramatic results. One such case is in measuring the edge of a surface. If done improperly, the point can “fall of the edge,” leading to inaccurate results. 3D modelling also enables inspectors to evaluate the surface of what is being measured. This is still a qualitative analysis, but it can give them more confidence that the correct point is being used. One example of this is weld inspection, where issues such as undercut can more quickly be evaluated. It also enables the user to quickly pinpoint an area of interest to measure, which can dramatically speed up the inspection time and produce a more reliable, robust system.