Method for inspecting surfaces

A method for inspecting surfaces 12 with n+1 repeating patterns 16, with a camera 18 producing an image 12' with a plurality of pixels forming a matrix of pixels, said pixels generating a technical value such as the gray value or the like, and with a computer unit 26 processing data of said pix...

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Bibliographic Details
Main Author PROBST C.,SCHWARZ A
Format Patent
LanguageEnglish
Published 11.07.2007
Subjects
CALCULATING
COMPUTING
COUNTING
IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
PHYSICS
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Summary:A method for inspecting surfaces 12 with n+1 repeating patterns 16, with a camera 18 producing an image 12' with a plurality of pixels forming a matrix of pixels, said pixels generating a technical value such as the gray value or the like, and with a computer unit 26 processing data of said pixels for the detection of the condition of said surface 12, which method comprises the following comparison steps: each value of a pixel to be inspected- inspection pixel- is compared with a value of a reference pixel, the difference of the comparison of said pixels will determined the result of the inspection. The invention is characterized in that only the values of the pixels of the matrix referring to said image 12' are the basis for said values of said reference pixels to detect the condition of said surface 12.
Bibliography:Application Number: CN200480043745