Digital image self-adaptive acquisition in medical x-ray imaging

摘要

In this paper, we analysis the construction of video digital acquisition system in medical x-ray imaging and the main issues that have influence on the quality of acquired signal, and present a optimized self-adaptive digital image acquisition method against background nonuniformity and improperly setting of working point. The characteristic of medical image is used to extract valid region of image by integrating region growing, edge detecting and Hough transform, and to remove background by digital subtraction. After those preprocessing, self-adaptive parameters setting is executed based on dynamic analysis of histogram.