Device for detection of fuselage defective parts

Substandard fuselage can trigger a deadly disaster that may claim many lives. This paper proposes employing of a standard digital camera that can produce JPEG images in an attempt to pinpoint a scratch in a fuselage. The digital camera takes pictures of the fuselage. The signal processing scheme of JPEG takes for granted that the taken picture is pretty smooth. Accordingly, when there is an abrupt difference inside an individual block of a picture, the value of many of its frequency coefficients will be above what is usual; therefore it will be compressed into many more bits. For that reason, if the image is more than usually large, an embedded computer system can spot the scratch. In such cases, sometimes an action can be taken in an attempt to minimize the risky outcomes of the impairment.