Fast 3D Analytical Affine Transformation for Polygon-Based Computer-Generated Holograms

We present a fast 3D analytical affine transformation (F3DAAT) method to obtain polygon-based computer-generated holograms (CGHs). CGHs consisting of tens of thousands of triangles from 3D objects are obtained by this method. We have attempted a revised method based on previous 3D affine transformat...

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Bibliographic Details
Published in:Applied sciences 2022-07, Vol.12 (14), p.6873
Main Authors: Fan, Houxin, Zhang, Bing, Zhang, Yaping, Wang, Fan, Qin, Wenlong, Fu, Qingyang, Poon, Ting-Chung
Format: Article
Language:English
Subjects:
3D display
affine transformation
Affine transformations
CGH
Computer applications
Computer graphics
Computing time
Efficiency
Holograms
Image quality
Light
Methods
Optics
polygon-based method
Polygons
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Summary:We present a fast 3D analytical affine transformation (F3DAAT) method to obtain polygon-based computer-generated holograms (CGHs). CGHs consisting of tens of thousands of triangles from 3D objects are obtained by this method. We have attempted a revised method based on previous 3D affine transformation methods. In order to improve computational efficiency, we have derived and analyzed our proposed affine transformation matrix. We show that we have further increased the computational efficiency compared with previous affine methods. We also have added flat shading to improve the reconstructed image quality. A 3D object from a 3D camera is reconstructed holographically by numerical and optical experiments.
ISSN:2076-3417
2076-3417
DOI:10.3390/app12146873