Method and device for inspecting an object for the detection of surface damage

A method for inspecting an object for the purpose of detecting defective surface regions of the object, the method comprising the steps of:

• using a scanning device to survey a surface of the object to be inspected and generating two-dimensional image data and a measured surface profile in at least one cross-sectional plane through the object in each case;
• using a computer device to evaluate the two-dimensional image data in order to localize a potentially defective surface region;
• using the computer device to generate a calculated surface profile within the potentially defective surface region in the cross-sectional plane on the basis of the measured surface profile outside of the potentially defective surface region of the cross-sectional plane;
• using the computer device to compare the calculated and measured surface profiles within the potentially defective surface region, the localized surface region being assessed as actually defective if defined differentiating features are present.

A device for performing an inspection of an object for the purpose of detecting defective surface regions of the object, comprising:

• a scanning device for surveying a surface of the object that is to be inspected and generating two-dimensional image data and a measured surface profile in at least one cross-sectional plane through the object in each case;
• a computer device for evaluating the two-dimensional image data in order to localize a potentially defective surface region;
• the computer device for generating a calculated surface profile within the potentially defective surface region in the cross-sectional plane on the basis of the measured surface profile outside of the potentially defective surface region of the cross-sectional plane;
• the computer device for comparing the calculated and the measured surface profiles within the potentially defective surface region, the localized surface region being assessed as actually defective if defined differentiating features are present.