1. Tang, Z.: 3D data visualization. Tsinghua University Press, Beijing (1999) (in Chinese)
2. Canny, J.: A computational approach to edge detection. IEEE Transaction on Pattern Analysis and Machine Intelligence 8(6), 679–698 (1986)
3. Wang, L., Wong, T.T., Heng, P.A., et al.: Template-matching approach to edge detection of volume data. In: Workshop on Medical Imaging & Argument Reality, Hong Kong, pp. 286–291. IEEE Computer Society (June 2001)
4. Heng, P.A., Wang, L., Wong, T.T., Leung, K.S., Cheng, J.C.: Edge surfaces extraction from 3D images. In: Sonka, M., Hanson, K. (eds.) Proc. Medical Imaging 2001, Image Processing, vol. 4322, pp. 407–416 (2001)
5. Ma, Y., Wang, L., Tang, Y.: A novel algorithm for tracking step-like edge surfaces within 3D images. Ji Suan Ji Fu Zhu She Ji Yu Tu Xing Xue Xue Bao/Journal of Computer-Aided Design and Computer Graphics 19(3), 329–333 (2007) (in Chinese)