What Is a Visual Inspection Service?
A visual inspection service is an inspection in which the appearance of a product is checked by the human eye and divided into good and defective products.
A visual inspection service is performed for items that are difficult for machines to detect automatically, such as defects in shape, color differences, uneven paintwork, printing errors, surface scratches, and adherence to any foreign matter.
Since it is difficult to quantify the conditions for judging a product as good in visual inspection service, some inspections are conducted by comparing the product with a limited sample for judgment in order to prevent variations in inspection results among inspectors. In addition to visual inspection by the naked eye, inspection using a magnifying glass, microscope, or image processing system is also classified as a visual inspection service.