Software method for opto-sensory detection, measurement and valuation of tool conditions

Computer-implemented method for optically sensing, for detecting and quantifying relevant conditions and/or their changes on at least one target object, having the following steps:

• a) recording an image sequence, wherein each image of the image sequence contains at least the target object and/or at least the section of the target object;
• b) comparing at least two of the images of the image sequence to one another and establishing commonalities and/or establishing differences between the at least two images of the image sequence;
• c) segmenting all images of the sequence into background and foreground, or vice versa;
• d) identifying at least one target object in the foreground;
• e) determining relevant image points of the target object;
• f) measuring at least one geometric property of the target object;
• g) comparing the at least one geometric property of the target object to at least one geometric properties of a comparison object;
• and
• h) classifying the condition of the target object into
• an optimal condition,
• at least one fault class with respect to the condition of the target object, and/or
• classifying the condition of the measurement system into
• an optimal condition or
• at least one fault class,
• wherein the at least one target object is arranged at least temporarily opposite an optical sensor device, and wherein the conditions of the fault classes differ from the optimal condition, characterized in that
• the background and the target object are distinguished by means of a higher rate of change of the image information of the background in comparison with the rate of change of the image information of the target object.