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In this paper, it is provided to reconstruct threedimensional(3D) models of human body by using CT slices and digital images and precisely finding locations of pathological formations such as tumours.3D image CT reconstruction is an attractive field generally in digital image processing techniques, especially in biomedical imaging. It is necessary to incise a 3D object to obtain detail structure information inside in the process of developing 3D medical visualization system. Visual C++ 6.0 with Visualization Toolkit (VTK) toolbox are used to reconstruct 3D images using the CT slice sequence in PAT format. Cuboids that can be controlled to zoom, move or circumrotate by mouse and used for clipping the object of 3D object. Experiment of tooth and foot shows that the technique can realize the real time.

A high-quality X-ray source was proposed by modifying the target material structure characteristics driven by ultrahigh laser energy. The experiments were performed on the Ti:sapphire femtosecond laser beam device (4.3–6 J, 30 fs), one of the three XG-III lasers in Laser Fusion Research Center of China Academy of Engineering Physics. The femtosecond laser beam drove the nanowire copper material with an average length of 18–50 μm and a diameter of about 260 nm. A single-photon counting charge-coupled device was employed to measure the copper Kα X-ray emission of the nanowire and foil targets. A clear maximum photon yield of the nanowire target was calculated to be 3.6 × 10 8 photons sr –1 s –1 , the conversion efficiency was up to 0.0087%, and the average yield was 2.5 times that of the copper foil targets. In addition, by using a pinhole imaging method of φ10 μm, the minimum full width at half maximum spot size of the X-ray source was calculated in the range of 85–240 μm, which was similar to that of the copper foil material with a long radius of 170 μm and a short radius of 63 μm. The experimental data illustrate that the nanowire has the potential to enhance the energy absorption of femtosecond laser for X-ray conversion and backlight imaging.