Real Three-Dimensional Image Projection System Based on the Volumetric 3D Display Principles and the WPF Framework

2013 ◽  
Vol 427-429 ◽  
pp. 1436-1439
Author(s):  
Guo Ping
Keyword(s):  
Three Dimensional ◽  
Image Display ◽  
3D Image ◽  
3D Display ◽  
Projection System ◽  
3D Images ◽  
Holographic Image ◽  
Dimensional Image ◽  
Naked Eye ◽  
Revelation Principle

The real projection system image of 3D Rotating cones based on the Volumetric 3D revelation principle and WPF platform is the true image. Compared with conventional 3D display, this system has the naked eye 3D display, so the viewer is no need to wear 3D glasses and 3D display can be achieved .At the same time, this system has a 360-degree holographic image display. The system is designed by using WPF 3D image, which makes it easy to produce 3D images.

Fast 3D image reconstruction algorithm based on artificial intelligence technology

2021 ◽  
pp. 002072092098504
Author(s):  
An Weigang ◽  
Pan Jinxiao
Keyword(s):  
Artificial Intelligence ◽  
High Resolution ◽  
Image Reconstruction ◽  
Three Dimensional ◽  
Feature Analysis ◽  
3D Image ◽  
3D Images ◽  
Dimensional Image ◽  
Fine Grained ◽  
3D Image Reconstruction

In order to improve the 3D reconstruction capability of high-resolution fine-grained 3D images, a fast 3D image reconstruction algorithm based on artificial intelligence technology is proposed. The cross-gradient sharpening detection method is used to collect features and extract information from high-resolution fine-grained three-dimensional images, and establish an edge contour feature detection model for high-resolution fine-grained three-dimensional images. Combining the salient feature analysis method and the subspace feature analysis method to cluster and analyze the high-resolution fine-grained three-dimensional image. In the artificial intelligence environment, the saliency of the three-dimensional image is detected and analyzed, and the multi-dimensional segmentation and gray histogram of the high-resolution fine-grained three-dimensional image are reconstructed through the subspace segmentation method. According to the reconstruction results of the gray histogram, fast 3D image reconstruction and image fusion processing are performed. Finally, the accurate detection and recognition of the reconstructed image is realized. The simulation results show that this method has a good effect on 3D image reconstruction, and the time cost of image reconstruction is relatively short. It improves the recognition and feature analysis capabilities of high-resolution fine-grained 3D images, and has good application value in the reconstruction, detection and recognition of high-resolution fine-grained 3D images.

scholarly journals CORRECTION OF PROJECTIVE DEFORMATIONS OF 3D OBJECT, ON THE STAGE OF HOLOGRAM FORMATION

2020 ◽  
Vol 8 (1) ◽  
pp. 97-107
Author(s):  
Sergey A. Shoydin ◽  
Artem L. Pazoev
Keyword(s):  
3D Image ◽  
Image Size ◽  
Projection System ◽  
3D Images ◽  
Holographic Image ◽  
3D Object ◽  
Large Depth ◽  
Optical Projection ◽  
Spatial Frequencies ◽  
Digital Synthesis

The problems of digital synthesis of holograms associated with a discrete representation of a signal forming a holographic image are analyzed. One of the significant limitations is the technological problems of the formation of holographic structures pointwise due to diffraction limitations of the size of the focused spot of the optical-mechanical builder. This narrows the spectrum of possible spatial frequencies of the pointwise synthesized hologram in comparison with the classical hologram recorded in an analog way, which in turn leads to difficulties in recording holograms with a large depth of 3D image. We discuss a way to overcome this problem by using an optical projection system with the possibility of both transverse and longitudinal image size. Some possibilities of constructing such systems are shown and experimentally confirmed, and some problems of deformation distortions of 3D images arising during their creation are analyzed.

Full-parallax 3D display using time-multiplexing projection technology

2020 ◽  
Vol 2020 (2) ◽  
pp. 100-1-100-6
Author(s):  
Takuya Omura ◽  
Hayato Watanabe ◽  
Naoto Okaichi ◽  
Hisayuki Sasaki ◽  
Masahiro Kawakita
Keyword(s):  
Incident Light ◽  
Polarization State ◽  
3D Image ◽  
3D Display ◽  
Time Division Multiplexing ◽  
3D Images ◽  
Polarization Gratings ◽  
Light Rays ◽  
Time Division

We enhanced the resolution characteristics of a threedimensional (3D) image using time-division multiplexing methods in a full-parallax multi-view 3D display. A time-division light-ray shifting (TDLS) method is proposed that uses two polarization gratings (PGs). As PG changes the diffraction direction of light rays according to the polarization state of the incident light, this method can shift light rays approximately 7 mm in a diagonal direction by switching the polarization state of incident light and adjusting the distance between the PGs. We verified the effect on the characteristics of 3D images based on the extent of the shift. As a result, the resolution of a 3D image with depth is improved by shifting half a pitch of a multi-view image using the TDLS method, and the resolution of the image displayed near the screen is improved by shifting half a pixel of each viewpoint image with a wobbling method. These methods can easily enhance 3D characteristics with a small number of projectors.

983 A novel three-dimensional image display system for transurethral surgery

2015 ◽  
Vol 14 (2) ◽  
pp. e983-e983b
Author(s):  
S. Yoshida ◽  
T. Fukuyo ◽  
M. Ito ◽  
M. Tatokoro ◽  
M. Yokoyama ◽  
...  
Keyword(s):  
Three Dimensional ◽  
Image Display ◽  
Display System ◽  
Dimensional Image

scholarly journals Three-dimensional image display in medicine

1990 ◽  
Vol 3 (2) ◽  
pp. 69-80 ◽  
Author(s):  
Nicholas J. Mankovich ◽  
Douglas R. Robertson ◽  
Andrew M. Cheeseman
Keyword(s):  
Three Dimensional ◽  
Image Display ◽  
Dimensional Image

Paper 2: Holographic Techniques in Engineering Metrology

1968 ◽  
Vol 183 (4) ◽  
pp. 5-12
Author(s):  
A. E. Ennos
Keyword(s):  
High Precision ◽  
Unique Feature ◽  
Three Dimensional ◽  
Laser Source ◽  
Coherent Light ◽  
Holographic Image ◽  
Dimensional Image ◽  
Engineering Component ◽  
Novel Method

Holography is a novel method of photography using coherent light from a laser source. Its unique feature is that it records a faithful three-dimensional image of the object. This allows one to compare the shape of an engineering component at one moment in time with its shape after some change has taken place, e.g. by deforming it under load. In some cases the holographic image of a ‘master’ component can be used as a template against which similar components can be matched with high precision. The techniques of holography, the interpretation of the results obtained, and the present limitations of the method will be discussed.

CRYST – a system to display 3D images of crystal structure, symmetry operations and crystal forms

1989 ◽  
Vol 22 (6) ◽  
pp. 633-639 ◽  
Author(s):  
T. Sakurai ◽  
K. Kobayashi ◽  
T. Horiki ◽  
M. Furukawa ◽  
K. Naitou
Keyword(s):  
Crystal Structure ◽  
Computer Graphics ◽  
Three Dimensional ◽  
Unit Cell ◽  
3D Images ◽  
Crystal Forms ◽  
Dimensional Image ◽  
Symmetry Operations

CRYST is a three-dimensional computer graphics program to help the understanding of crystallographic procedures. The three-dimensional image of a crystal structure is displayed, together with the arrangement of the symmetry elements in the unit cell. The symmetry-related atoms can be generated successively on a graphics screen by designating symmetry elements with a pen and tablet. Changes in morphology of a growing crystal may also be drawn by computer. Several applications of the system are described.

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