Paul C. Lauterbur Research Center for Biomedical Imaging, Institute of Biomedical and Health Engineering, Shenzhen Institutes of Advanced Technology, Chinese Academy of Sciences, Shenzhen, China; Key Lab for Biomedical Informatics and Health Engineering, Chinese Academy of Sciences.

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Abstract—Three-dimensional medical image visualization becomes an essential part for medical field, including computer-aided diagnosis, surgery planning and simulation, artificial limb surgery, radiotherapy planning, and teaching etc. In this paper, marching cubes algorithm is adopted to reconstruct the 3-D images for the CT image sequence in DICOM format under the VC++6.0 and the visual package VTK platform. The relatively simple interactive operations such as rotation and transfer can be realized on the platform. Moreover, the normal vector and interior point are calculated to form the virtual clipping plane, which is then used to incise the 3-D object. Information of the virtual slice can be obtained, in the mean while the virtual slice images are displayed on the screen. The technique can realize the real time interaction extraction of virtual slice on 3-D CT image. The cuboids structured can be zoomed, moved and circumrotated by operating mouse to incise the 3-D reconstruction object. Real time interaction can be realized by clipping the reconstruction object. The coordinates can be acquired by the mouse clicking in the 3D space, to realize the point mouse pick-up as well angle and distance interactive measurement. We can get quantitative information about 3-D images through measurement.

Index Terms—3D Visualization, interactive, virtual slice, cuboids clipping, mouse pick-up, quantitative measurement, medical imaging, computed tomography (CT)

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Cite: Zhanli Hu, Jing Zou, Jianbao Gui, Junyan Rong, Yanming Li, Dongxing Xi, and Hairong Zheng, " Real-Time Visualization and Interaction of Three-dimensional Human CT Images," Journal of Computers vol. 5, no. 9, pp. 1335-1342, 2010.