Optical device and method for inspecting tires
AssigneeBeissbarth GmbH
InventorsGuenter Nobis, Steffen Abraham, Axel Wendt, Michael Klar
Life of this patent
Estimating the term…
Abstract
A method for tire inspection which includes taking at least one image of at least one first area of a tread of a tire that is to be inspected; determining the profile depth of a second area of the tread of the tire, the second area being included in the first area; and displaying the profile depth of the at least one image of the at least one first area and the position of the second area in the first area. The method may additionally include automatically analyzing the images taken of the tread, so as to arrive at statements on the condition of the tread.
Claims23
A method for inspecting tires;
- the method comprising:
- taking at least one 2D image of at least one first area of a tread of a tire that is to be inspected;
- determining a profile depth of at least one second area of the tread of the tire by 3D profile depth measurement;
- the second area being included in the first area;
- dividing the at least one 2D image into a plurality of image sections;
- calculating texture features for each of the image sections;
- assigning the at least one 3D profile depth measurement to the texture features;
- and
- simultaneously displaying the at least one 2D image of the at least one first area;
- the position of the second area in the first area;
- and the determined profile depth.
A device for inspecting tires, the device comprising:
- at least one camera to take a 2D image of at least one first area of a tread of a tire that is to be inspected,
- an optical projection device to illuminate at least one second area of the tread of the tire that is to be inspected, the second area being included in the first area, an evaluation device configured for:
- determining the profile depth in the second area of the tread of the tire from the 2D image taken by the camera;
- dividing the at least one 2D image into a plurality of image sections;
- calculating texture features for each of the image sections;
- and
- assigning the at least one 3D profile depth measurement to the texture features;
- and
- a display device to simultaneously display the profile depth determined by the evaluation device, the 2D image of the at least one first area of the tread, and the position of the second area within the first area of the tire.
The non-transitory machine-readable storage medium including program instructions, which when executed by a processor perform a method for inspecting tires, the method comprising:
- taking at least one 2D image of at least one first area of a tread of a tire that is to be inspected,
- determining a profile depth of at least one second area of the tread of the tire by 3D profile depth measurement, the at least one second area being included in the first area, dividing the at least one 2D image into a plurality of image sections;
- calculating texture features for each of the image sections;
- assigning the at least one 3D profile depth measurement to the texture features;
- and simultaneously displaying the at least one 2D image of the at least one first area, the position of the second area in the first area, and the profile depth.
Dependencies are inferred from the claim text.