3-D measuring system based on spatial coordinate transformation

Many kinds of 3-D profilometry share the drawbacks of not having enough measuring range (especially for the testing of a big object) and of existing shadow problems. A new approach is proposed, which can fit the measurement of big objects and small ones with complicated shape. The theory of spatial coordinate transformation into the 3-D profilometry is presented, and the method to transform the phase information into the height of objects and combine the results from different systems was described.

Duke Scholars

Author Feng Tian DKU Faculty