Concept for selecting an optimized evaluation feature part set for an inspection of free-form surface and concept for inspecting a freely the form of surface

摘要

An apparatus for selecting an optimized evaluation feature part set (50) for an inspection of free-form surface, which are illuminated by means of a structured light, on the basis of a reference pattern set (52), the surface areas of freely the form of objects shows, each pattern of the reference set (52) of a defective or is not defective reference state (54) of the respective surface area of the freely the form of objects is associated which comprises the steps of:Generating means for generating (56) of a plurality of combinations of evaluation features (58), wherein each combination of evaluation features (58) a first set of characteristics (60) and a second set of characteristics (62), wherein the first set of characteristics (60) from a first set of adaptive features (64) is selected, and wherein the second set of characteristics (62) from a second group of texture features (80) is selected, wherein the first group consisting of adaptive features (64) strips based features (82) and / or fringebasierte features (102), and wherein the second group of texture features (80) trans the form of seeds based features (88), structural features (84) and / or..