Abstract
In virtual endoscopy, fast and accurate path generation and navigation is the most important feature. Previous methods made a center line of organcavity by connecting consecutive points maximally distant from organ wall. However they have some problems to demand a lot of computation and extra storage for spatial data structures. We propose an efficient path computation algorithm. It determines camera direction for the next frame identifying a ray that has maximum depth in current frame. Camera position is determined by using the center of gravity of organ’s cross-section. Entire camera path can be constructed by applying the operation in every frame. It doesn’t require preprocessing and extra storage since it depends only on image-space information generated in rendering time.
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References
You, S., Hong, L., Wan, M., Junyaprasert, K., Kaufman, A., Muraki, S., Zhou, Y., Wax, M., Liang, Z.: Interactive volume rendering for virtual colonoscopy. In: IEEE Visualization Proceedings of the 8th conference on Visualization (1997)
Levoy, M.: Display of surfaces from volume data. IEEE Computer Graphics and Applications 8(3), 29–37 (1988)
Gibson, S.: Beyond volume rendering: visualization, haptic exploration, and physical modeling of voxel-based objects. In: 6th Eurographics Workshop on Visualization in Scientific Computing (1995)
De Assis Zampirolli, F., De Alencar Lotufo, R.: Classification of the distance transformation algorithms under the mathematical morphology approach. In: Proceedings XIII Brazilian Symposium on Computer Graphics and Image Processing, pp. 292–299 (2000)
Gleicher, M., Witkin, A.: Through the lens camera control. In: ACM SIGGRAPH, pp. 331–340 (1992)
Hong, L., Kaufman, A., Wei, Y., Viswambharan, A., Wax, M., Liang, Z.: 3D virtual colonoscopy. In: IEEE Symposium on Biomedical Visualization, pp. 26–32 (1995)
Hong, L., Muraki, S., Kaufman, A., Bartz, D., He, T.: Virtual voyage: Interactive navigation in the human colon. In: ACM SIGGRAPH, pp. 27–34 (1997)
Wan, M., Tang, Q., Kaufman, A., Liang, Z., Wax, M.: Volume rendering based interactive navigation within the human colon. IEEE Visualization (1999)
Datta, A., Soundaralakshmi, S.: Fast parallel algorithm for distance transforms. In: The 15th International Symposium on Parallel and Distributed Processing, pp. 1130–1134 (2001)
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© 2004 Springer-Verlag Berlin Heidelberg
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Kwon, KJ., Shin, BS. (2004). An Efficient Camera Path Computation Using Image-Space Information in Virtual Endoscopy. In: Aykanat, C., Dayar, T., Körpeoğlu, İ. (eds) Computer and Information Sciences - ISCIS 2004. ISCIS 2004. Lecture Notes in Computer Science, vol 3280. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-540-30182-0_13
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DOI: https://doi.org/10.1007/978-3-540-30182-0_13
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