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[An improved fast algorithm for ray casting volume rendering of medical images].
Sheng Wu Yi Xue Gong Cheng Xue Za Zhi. 2006 Oct; 23(5):1003-7.SW

Abstract

Ray casting algorithm can obtain better quality images in volume rendering, however, it presents some problems such as powerful computing capacity and slow rendering velocity. Therefore, a new fast algorithm of ray casting volume rendering is proposed in this paper. This algorithm reduces matrix computation by the matrix transformation characteristics of re-sampling points in two coordinate system, so re-sampled computational process is accelerated. By extending the Bresenham algorithm to three dimension and utilizing boundary box technique, this algorithm avoids the sampling in empty voxel and greatly improves the efficiency of ray casting. The experiment results show that the improved acceleration algorithm can produce the required quality images, at the same time reduces the total operations remarkably, and speeds up the volume rendering.

Authors+Show Affiliations

Tao L
Department of Biomedical Engineering,College of Automation, Nanjing University of Aeronautics & Astronnutics, Nanjing 210016, China. taoling1791@263.net
Wang H
No affiliation info available
Tian Z
No affiliation info available

MeSH

AlgorithmsFourier AnalysisHumansImage Interpretation, Computer-AssistedImaging, Three-DimensionalSoftware

Pub Type(s)

English Abstract
Journal Article

Language

chi

PubMed ID

17121341

Citation

Tao, Ling, et al. "[An Improved Fast Algorithm for Ray Casting Volume Rendering of Medical Images]." Sheng Wu Yi Xue Gong Cheng Xue Za Zhi = Journal of Biomedical Engineering = Shengwu Yixue Gongchengxue Zazhi, vol. 23, no. 5, 2006, pp. 1003-7.
Tao L, Wang H, Tian Z. [An improved fast algorithm for ray casting volume rendering of medical images]. Sheng Wu Yi Xue Gong Cheng Xue Za Zhi. 2006;23(5):1003-7.
Tao, L., Wang, H., & Tian, Z. (2006). [An improved fast algorithm for ray casting volume rendering of medical images]. Sheng Wu Yi Xue Gong Cheng Xue Za Zhi = Journal of Biomedical Engineering = Shengwu Yixue Gongchengxue Zazhi, 23(5), 1003-7.
Tao L, Wang H, Tian Z. [An Improved Fast Algorithm for Ray Casting Volume Rendering of Medical Images]. Sheng Wu Yi Xue Gong Cheng Xue Za Zhi. 2006;23(5):1003-7. PubMed PMID: 17121341.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - [An improved fast algorithm for ray casting volume rendering of medical images]. AU - Tao,Ling, AU - Wang,Huina, AU - Tian,Zhiliang, PY - 2006/11/24/pubmed PY - 2007/3/31/medline PY - 2006/11/24/entrez SP - 1003 EP - 7 JF - Sheng wu yi xue gong cheng xue za zhi = Journal of biomedical engineering = Shengwu yixue gongchengxue zazhi JO - Sheng Wu Yi Xue Gong Cheng Xue Za Zhi VL - 23 IS - 5 N2 - Ray casting algorithm can obtain better quality images in volume rendering, however, it presents some problems such as powerful computing capacity and slow rendering velocity. Therefore, a new fast algorithm of ray casting volume rendering is proposed in this paper. This algorithm reduces matrix computation by the matrix transformation characteristics of re-sampling points in two coordinate system, so re-sampled computational process is accelerated. By extending the Bresenham algorithm to three dimension and utilizing boundary box technique, this algorithm avoids the sampling in empty voxel and greatly improves the efficiency of ray casting. The experiment results show that the improved acceleration algorithm can produce the required quality images, at the same time reduces the total operations remarkably, and speeds up the volume rendering. SN - 1001-5515 UR - https://www.unboundmedicine.com/medline/citation/17121341/[An_improved_fast_algorithm_for_ray_casting_volume_rendering_of_medical_images]_ DB - PRIME DP - Unbound Medicine ER -