Dual-energy X-ray body scanning device and image processing method

摘要

A dual-energy X-ray body scanning device, comprising an X-ray generator, an X-ray collimation part, X-ray dual-energy detectors, each comprising a low-energy detector, a filter, and a high-energy detector, an inspection tunnel, a human conveying device, a console desk, a controlling circuit board cabinet, a computer, an image acquisition system, and an image processing and control system. An image processing method is also disclosed. Digital signals are processed by computer for image scrolling display. With high and low energy data, this creative new style inspection system obtains effective atomic number of the inspected articles, and identifies organic, inorganic and mixture material with high efficiency and high quality performance. The dual-energy X-ray body scanning device detects high-energy and low-energy detection data via the X-ray dual-energy detectors, obtain equivalent atomic number information, distinguishes organic compounds, inorganic compounds, and mixtures (especially drugs, explosives, and weapons), and endows them with different colors so that operators can accurately read. The image processing method recognizes and peels off human tissues in an image, and only keeps a portion of the image in which big difference exists between atomic numbers and the human tissues, which makes the image convenient for observation, and an inspection process more fast and high-efficient. The invention can be widely applied to airports, borders, railway stations, subway stations, inter-city bus stations, government agencies, prisons that require safety inspection.