Method and apparatus for recognition of color brightness variations
AssigneeDr. Ing. h.c.F. Porsche Aktiengesellschaft
InventorsRalf Ringler, Mario Pawlowski
Life of this patent
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Abstract
In the case of a method and a system for visually detecting paint gloss deviations, particularly a fogginess and mottling of the paint, in a surface paint coat of a vehicle by means of an illuminating system illuminating the vehicle, the outer surfaces of the two vehicle sides as well as additional surfaces of the forward and rearward vehicle body are illuminated by light beaming devices of the illuminating system in a partially areal manner. These surfaces are to be checked at a distance from the vehicle at predefined viewing ranges and from fixed viewing positions on a marked path.
Claims19
Method for visually detecting paint gloss deviations, particularly a fogginess and mottling of the paint in a surface paint coat of a vehicle by means of an illuminating system illuminating the vehicle, comprising the steps:
- illuminating outer surfaces (F1) of two sides of the vehicle as well as additional surfaces (F3, F5 and F2, F4) of a forward and rearward vehicle body portion by light beaming devices of an illuminating system in a partially areal manner;
- and,
- observing said outer surfaces and said additional surface along at least one marked path, said observing occurring at a distance (a) from the vehicle (F) at predefined viewing ranges and defined viewing positions (S1 to S6) wherein the at least one marked path consists of a semicircle around the lateral surfaces (F1) of the vehicle and an adjoining segment of a circle to the forward and rearward vehicle body and, on said at least one path, the defined viewing positions (S1 to S6) are assigned to the light beaming devices, and wherein there are additional positions for looking at the outer and additional vehicle surfaces (F1 to F5) between said defined viewing positions (S1 to S6) on one of said at least one marked path.
Dependencies are inferred from the claim text.