X-ray, Secondary radiatio,n Computed radiography cassette, Imaging plate, Multilevel, Otsu method

Nowadays, the use of X-ray is an important part of imaging techniques used in medicine. The resulting skiagraphy images are kept in the workplace and can be influenced by secondary radiation, which occurs as a secondary effect when irradiated with X-rays. This secondary radiance has not to effect only for the skiagraphy images but also for the human body. The effect of secondary radiation is irreversible image acquisition, which can lead to poor diagnosis and poor clinical information. Currently, there are no techniques and methods available to determine the extent of secondary damage to the skiagraphy cassette. In the work, we analyse the influence of secondary radiation on the quality of the skiagraphy images using mobile X-ray devices. During image analysis, a multi-region segmentation method is used to determine pixels that are affected by irradiation. By this method, we are able to derive the characteristics of the image, determine the level of irradiation and estimate the effect of secondary radiation.