![]() The organic combination of both can further improve the comprehensibility of the scene and achieve the “augmentation” of the scene. The real-scene data are sampled by the camera, and the virtual scene is rendered by computer software or a program. The diversified scene selection of HS not only enriches its expression ability, but also makes the realization of augmented reality-holographic stereogram (ARHS) possible.ĪRHS reconstructs the light field information of real and virtual scenes at the same time. In addition, the scene is not limited to real-world objects, but can also be a 3D model rendered by computer. HS discretizes and approximates the continuous 3D light field, which greatly reduces the amount of data. Moreover, HS does not have the depth information in the scene space, but people can still perceive 3D clues, which depends on the binocular parallax effect. An HS cannot show all the information of the scene but is limited to a certain angle (less than 180°). Using discrete 2D images with parallax information as the input, the 3D reconstruction of a scene can be obtained after image processing, stereoscopic exposure, and development and fixing. HS is widely used in the military, publicity, commerce, and other fields. Holographic stereogram (HS) comprises a research hotspot in the field of three-dimensional (3D) display, providing a flexible and efficient means of 3D display. Analysis of experimental results shows that the proposed method can effectively realize augmented reality-holographic stereogram. The obtained scene model and virtual scene are rendered simultaneously to obtain the real and virtual fusion scene. First, the point cloud data is generated by VisualSFM software, and then the 3D mesh model is reconstructed by MeshLab software. In this paper, an augmented reality-holographic stereogram based on 3D reconstruction is proposed. It can reconstruct the light field information of real and virtual scenes at the same time, further improving the comprehensibility of the scene and achieving the “augmentation” of the scene. Holographic stereogram comprises a hotspot in the field of three-dimensional (3D) display. 3R and D Center for Intelligent Control and Advanced Manufacturing, Research Institute of Tsinghua University in Shen Zhen, Shen Zhen, China.2Center of Vocational Education, Army Academy of Armored Forces, Beijing, China.1Department of Information Communication, Army Academy of Armored Forces, Beijing, China.The scalar wave function approximation of physical optics is used throughout.Yunpeng Liu 1 †, Tao Jing 1 †, Qiang Qu 1, Ping Zhang 2, Pei Li 3, Qian Yang 4, Xiaoyu Jiang 1* and Xingpeng Yan 1* Two simple graphical mnemonics are developed for rapid analytical inspection of the effects of, respectively, temporal and spatial incoherence of the source in any achromatically imaged zone plate or Gabor in-line type holographic system. The emphasis is on physical interpretation rather than mathematical formulation. The achromatically imaged Fresnel zone plate is analyzed as a technique of very general applicability which compensates for source incoherency in two-beam type holographic arrangements. Also treated are the full-color, the focused-type, and the distortionless-scaled holographic stereogram, and optical spatial filtering of holographic stereogram images. The flys eye lens is much superior, but is limited in practice by aberrations, a difficulty which the holographic stereogram overcomes. Pinhole camera stereogram imagery is shown to have several deficiencies, among which is the necessity for small camera-object distances. The pinhole camera stereogram and the flys eye lens stereogram are also analyzed, since the principles of their operation are similar. The process is partly holographic in nature, but it provides images of naturally illuminated objects, and its application is not limited by the technology of laser illumination. Abstract: The holographic stereogram, a hologram synthesized from ordinary stereoscopic component photographs, is investigated as an alternative to classical holograms and to previous types of stereograms for three-dimensional perfect imagery. ![]()
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