Photo-realistic texture mapping for voxel-based volume data

T. L. Weng, W. Y. Chang, S. R. Wang, Yung-Nien Sun

Research output: Contribution to journalConference article

Abstract

In computerized image and graphic applications, texture mapping is one of the most commonly used methods to improve the realism or to enhance the visual effect of object rendering without too much increase in computational complexity. In conventional texture mapping, a three-dimensional (3D) object has to be transferred to the polygonal structure, and then mapped with a texture or photographic image. However, it is usually computationally expensive to transfer the original data in voxels to polygons, and is even more complex to map the 2D texture image onto the 3D polygonal structure. Even though the computation is huge, the polygonal structure is not efficient in preserving the internal information of volume data. Because most volume data acquired by medical imaging devices or 3D scanners are in voxel format, it is more appropriate to handle these data directly in voxel format. In this paper, we propose a new texture mapping method based on chain-coding flattening to handle the voxel-based data directly. Therefore, the computation is reduced significantly and the internal information can be utilized and preserved thoroughly. The method flattens a 3D object surface onto a 2D plane and then uses 2D warping technique to generate the correspondences between the object surface and the texture image. Therefore, polygonal transformation required in the conventional approach is no longer necessary and texture mapping is handled with inexpensive 2D computation. Experimental results have shown the effectiveness and efficiency of the proposed algorithm.

Original languageEnglish
Pages (from-to)386-393
Number of pages8
JournalProceedings of SPIE - The International Society for Optical Engineering
Volume4319
DOIs
Publication statusPublished - 2001 Jan 1
EventMedical Imaging 2001: Visualization, Display, and Image-Guided Procedures - San Diego, CA, United States
Duration: 2001 Feb 182001 Feb 20

Fingerprint

Texture Mapping
Voxel
textures
Textures
Texture
Flatten
Internal
format
Warping
Medical Imaging
Scanner
Rendering
Polygon
polygons
Computational Complexity
Medical imaging
Correspondence
Coding
flattening
preserving

All Science Journal Classification (ASJC) codes

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics
  • Computer Science Applications
  • Applied Mathematics
  • Electrical and Electronic Engineering

Cite this

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title = "Photo-realistic texture mapping for voxel-based volume data",
abstract = "In computerized image and graphic applications, texture mapping is one of the most commonly used methods to improve the realism or to enhance the visual effect of object rendering without too much increase in computational complexity. In conventional texture mapping, a three-dimensional (3D) object has to be transferred to the polygonal structure, and then mapped with a texture or photographic image. However, it is usually computationally expensive to transfer the original data in voxels to polygons, and is even more complex to map the 2D texture image onto the 3D polygonal structure. Even though the computation is huge, the polygonal structure is not efficient in preserving the internal information of volume data. Because most volume data acquired by medical imaging devices or 3D scanners are in voxel format, it is more appropriate to handle these data directly in voxel format. In this paper, we propose a new texture mapping method based on chain-coding flattening to handle the voxel-based data directly. Therefore, the computation is reduced significantly and the internal information can be utilized and preserved thoroughly. The method flattens a 3D object surface onto a 2D plane and then uses 2D warping technique to generate the correspondences between the object surface and the texture image. Therefore, polygonal transformation required in the conventional approach is no longer necessary and texture mapping is handled with inexpensive 2D computation. Experimental results have shown the effectiveness and efficiency of the proposed algorithm.",
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Photo-realistic texture mapping for voxel-based volume data. / Weng, T. L.; Chang, W. Y.; Wang, S. R.; Sun, Yung-Nien.

In: Proceedings of SPIE - The International Society for Optical Engineering, Vol. 4319, 01.01.2001, p. 386-393.

Research output: Contribution to journalConference article

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