There are several factors which can affect the quantity of samples required for identification of defects on a specific product. Mainly, we higlight the following factors: quality of images (camera resolution, shadow, lightning), type of material, how many classes/types of defects are required to identify and others.
However, as a general advice, at least 20 GOOD and 20 BAD images, that should be enough to run a first successful attempt with our software.
Ideally, images should be provided on 2 separate folders, labelled for example, GOOD and BAD, or alternatively, files with prefix/suffix GOOD/BAD.
Please note below best practices when requesting a feasibility study request:
Provide enough quantity of pictures which would cover the majority of defects for that product
Provide defect types/class names for accurate reporting
Provide acceptable defect threshold (scratch size, hole diameter.. for OK/NOK scenarios)
Please note if the initial results are not satisfactory on the first attempt, more samples may be required depending on the product, therefore, we recommend to provide as many samples as possible.
If you have further queries, please contact support@pekatvision.com
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