Research on Improved Ray Casting Algorithm and Its Application in Three-Dimensional Reconstruction
Spinal pathology treatment has become an urgent issue to be solved. How to effectively prevent and treat spinal pathology has become a research hotspot in the field of surgery. Aiming at the problem of too long volume rendering time caused by the trilinear interpolation sampling method in the recons...
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| Main Authors: | , , |
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| Format: | Article |
| Language: | English |
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Wiley
2021-01-01
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| Series: | Shock and Vibration |
| Online Access: | http://dx.doi.org/10.1155/2021/8718523 |
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| _version_ | 1832549173718679552 |
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| author | ZheShu Jia DeYun Chen Bo Wang |
| author_facet | ZheShu Jia DeYun Chen Bo Wang |
| author_sort | ZheShu Jia |
| collection | DOAJ |
| description | Spinal pathology treatment has become an urgent issue to be solved. How to effectively prevent and treat spinal pathology has become a research hotspot in the field of surgery. Aiming at the problem of too long volume rendering time caused by the trilinear interpolation sampling method in the reconstruction and visualization of the vertebra 3D model, an improved ray projection algorithm is proposed to quickly reconstruct a 3D vertebra model from medical CT vertebra images. This method first classifies CT data, assigns corresponding color values and opacity transfer functions to different types of data, and then uses inverse distance-weighted interpolation (IDWI) sampling to replace the trilinear interpolation sampling method for the voxel where the sampling point is located to accelerate the interpolation operation. The color value and opacity of the sampling points are obtained, and finally, the attributes of all the sampling points are synthesized and calculated to obtain the final rendering effect, and the reconstruction of the three-dimensional vertebra model is completed. Experimental results show that the proposed method not only can obtain higher quality rendered images but also has a certain improvement in rendering speed compared with traditional algorithms. |
| format | Article |
| id | doaj-art-7f6e254bcddf462f8aff3bc3e03920da |
| institution | Kabale University |
| issn | 1070-9622 1875-9203 |
| language | English |
| publishDate | 2021-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | Shock and Vibration |
| spelling | doaj-art-7f6e254bcddf462f8aff3bc3e03920da2025-02-03T06:12:06ZengWileyShock and Vibration1070-96221875-92032021-01-01202110.1155/2021/87185238718523Research on Improved Ray Casting Algorithm and Its Application in Three-Dimensional ReconstructionZheShu Jia0DeYun Chen1Bo Wang2School of Computer Science and Technology, Harbin University of Science and Technology, Harbin 150080, ChinaSchool of Computer Science and Technology, Harbin University of Science and Technology, Harbin 150080, ChinaSchool of Automation, Harbin University of Science and Technology, Harbin 150080, ChinaSpinal pathology treatment has become an urgent issue to be solved. How to effectively prevent and treat spinal pathology has become a research hotspot in the field of surgery. Aiming at the problem of too long volume rendering time caused by the trilinear interpolation sampling method in the reconstruction and visualization of the vertebra 3D model, an improved ray projection algorithm is proposed to quickly reconstruct a 3D vertebra model from medical CT vertebra images. This method first classifies CT data, assigns corresponding color values and opacity transfer functions to different types of data, and then uses inverse distance-weighted interpolation (IDWI) sampling to replace the trilinear interpolation sampling method for the voxel where the sampling point is located to accelerate the interpolation operation. The color value and opacity of the sampling points are obtained, and finally, the attributes of all the sampling points are synthesized and calculated to obtain the final rendering effect, and the reconstruction of the three-dimensional vertebra model is completed. Experimental results show that the proposed method not only can obtain higher quality rendered images but also has a certain improvement in rendering speed compared with traditional algorithms.http://dx.doi.org/10.1155/2021/8718523 |
| spellingShingle | ZheShu Jia DeYun Chen Bo Wang Research on Improved Ray Casting Algorithm and Its Application in Three-Dimensional Reconstruction Shock and Vibration |
| title | Research on Improved Ray Casting Algorithm and Its Application in Three-Dimensional Reconstruction |
| title_full | Research on Improved Ray Casting Algorithm and Its Application in Three-Dimensional Reconstruction |
| title_fullStr | Research on Improved Ray Casting Algorithm and Its Application in Three-Dimensional Reconstruction |
| title_full_unstemmed | Research on Improved Ray Casting Algorithm and Its Application in Three-Dimensional Reconstruction |
| title_short | Research on Improved Ray Casting Algorithm and Its Application in Three-Dimensional Reconstruction |
| title_sort | research on improved ray casting algorithm and its application in three dimensional reconstruction |
| url | http://dx.doi.org/10.1155/2021/8718523 |
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