A roller transducer assembly comprises at least one core section and each core section comprises a transducer. The distance of each data sample relative to every other data sample is then calculated. It has been found that the combination surprisingly provides up to 1. Information of image, brightness and distribution of the failed portion is preserved and outputted automatically after inspection. The hinge deflector includes a shell having rounded surfaces for encasing a first medial hinge assembly and deflecting a second medial hinge assembly of bilaterally worn knee braces.