High-speed full analytical holographic computations for true-life scenes.
We develop a novel method to generate hologram of three-dimensional (3D) textured triangle-mesh-model that is reconstructed from ordinary digital photos. This method allows analytically encoding the 3D model consisting of triangles. In contrast to other polygon based holographic computations, our full analytical method will free oneself from the numerical error that is in the angular spectrum due to the Whittaker-Shannon sampling. In order to saving the computation time, we employ the GPU platform that is remarkably superior to the CPU's. We have rendered a true-life scene with colored textures as the first demo by our homemade software. The holographic reconstructed scene possesses high performances in many aspects such as depth cues, surface textures, shadings, and occlusions, etc. The GPU's algorithm performs hundreds of times faster than those of CPU.
Liu
Yuan-Zhi
YZ
State Key Laboratory of Optoelectronic Materials and Technologies, Zhongshan (Sun Yat-sen) University, Guangzhou 510275, China.
Dong
Jian-Wen
JW
Pu
Yi-Ying
YY
Chen
Bing-Chu
BC
He
He-Xiang
HX
Wang
He-Zhou
HZ
D000465:Algorithms; D006696:Holography / Q000379:methods*; D007089:Image Enhancement / Q000379:methods; D007090:Image Interpretation, Computer-Assisted / Q000379:methods*; D021621:Imaging, Three-Dimensional / Q000379:methods*