High-definition metrology

In metrology, high-definition metrology is where measurements are made densely across the observable extent of that surface or object and displayed with high-definition. In that sense, high-definition is analogous to high definition television.

In contrast, "global" or "overall" or "statistical" measurements single or coarsely sampled measurement values that do not define the surface or object attribute variations in detail. Statistical measurements may show some overall characteristic of the item being measured.

High-definition metrology is used to determine the location where certain attributes occur, or where their values are outside of some specified range of values. In precision manufacturing, for example, this knowledge may enable remedial action to be taken to correct or control process variables that affect the dimensions of a manufactured part or assembly.

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