Computer graphics processing and selective visual display system – Computer graphics processing – Three-dimension
Patent
1995-11-08
1998-08-11
Buchel, Jr., Rudolph J.
Computer graphics processing and selective visual display system
Computer graphics processing
Three-dimension
345424, G06T 1550
Patent
active
057933758
ABSTRACT:
An image processing apparatus for forming a high-quality surface display image at high speed is provided. From raw data input by a medical image diagnosis apparatus, gray-level volume data and binary volume data in which a region-of-interest is extracted by binarizing are obtained. The binary volume data is subjected to ray-casting and projected onto a screen. A depth image formed of pixels on the screen and a distance between the screen and the surface (surface voxel) of a display object is obtained. The coordinates of the surface voxels are calculated from the depth image. Surface normals are obtained from voxel values of the gray-level volume data and a voxel values in the vicinity, and a shaded image is formed on the basis of surface normals.
REFERENCES:
patent: 4879652 (1989-11-01), Norwak
patent: 4879668 (1989-11-01), Cline et al.
patent: 4985834 (1991-01-01), Cline et al.
patent: 5063375 (1991-11-01), Lien et al.
patent: 5280344 (1994-01-01), Witlin et al.
patent: 5368033 (1994-11-01), Moshfeghi
Bomans, M., et al, "3-D Segmentation of MR Images of the Head for 3-D Display", IEEE Transactions on Medical Imaging, vol. 9, No. 2, pp. 177-183, Jun. 1990.
Foley, James D., et al, "Computer Graphics: Principles and Practices", Addison-Wesley Publishing Co., 2nd ed., pp. 730-741, 1990, (hereinafter Foley).
Tiede, et al. "Surface Rendering: Investigation of Medical 3D-Rendering Algorithms", IEEE Computer Graphics & Applications Mar. 1990, 41-53.
Buchel, Jr. Rudolph J.
Kabushiki Kaisha Toshiba
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