Liu Yuan-Zhi, Dong Jian-Wen, Pu Yi-Ying, Chen Bing-Chu, He He-Xiang, Wang He-Zhou
State Key Laboratory of Optoelectronic Materials and Technologies, Zhongshan (Sun Yat-sen) University, Guangzhou 510275, China.
Opt Express. 2010 Feb 15;18(4):3345-51. doi: 10.1364/OE.18.003345.
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.
我们开发了一种新颖的方法来生成由普通数码照片重建的三维（3D）纹理三角形网格模型的全息图。该方法允许对由三角形组成的3D模型进行解析编码。与其他基于多边形的全息计算相比，我们的全解析方法将使人们摆脱由于惠特克-香农采样而在角谱中出现的数值误差。为了节省计算时间，我们采用了明显优于CPU的GPU平台。我们通过自制软件渲染了一个带有彩色纹理的真实场景作为首个演示。全息重建场景在深度线索、表面纹理、阴影和遮挡等许多方面都具有高性能。GPU算法的执行速度比CPU算法快数百倍。
