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Volumetric 3D display system based on multiple projectors rotating screen

A display system and projector technology, used in military simulation, mechanical assembly, medical imaging, meteorological analysis, and air traffic control.

Inactive Publication Date: 2007-09-19
BEIJING INSTITUTE OF TECHNOLOGYGY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

The disadvantage is that the size of the three-dimensional array is directly related to the range of the image space, the size and spacing of the components themselves determine the fineness of the displayed image, the electrical connection is complicated, and the volume pixel density is difficult to meet the application requirements
The size of the LED light-emitting die is relatively large, and when the screen size is limited, the resolution cannot be very high

Method used

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  • Volumetric 3D display system based on multiple projectors rotating screen
  • Volumetric 3D display system based on multiple projectors rotating screen
  • Volumetric 3D display system based on multiple projectors rotating screen

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Embodiment Construction

[0023] The present invention will be further described in conjunction with head medical display, one of the applications of the present invention. The visual scene provided by the volumetric 3D display is transparent, but in the field of medical imaging, in order to better perform pathological diagnosis, the researched objects are required to be displayed in the corresponding physiological positions according to their original appearance, without any occlusion between them. This system performs three-dimensional modeling on a series of two-dimensional images obtained by CT scanning, and then decomposes the three-dimensional model into a series of multi-angle two-dimensional images in the cylindrical coordinate system, and synchronizes the two-dimensional images of corresponding angles by multiple projectors at multiple angles Projected on a rotating screen, a three-dimensional image similar to the real object is reconstructed to help doctors diagnose the disease.

[0024] Acco...

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Abstract

The invention provides a multiple projector rotating screen based 3D display system, including: one rotating screen, driven by motor; an image processing device, decomposes the 3D physical model in the cylindrical coordinate system in a series of multiple angular 2D images and sent to the data processing unit of all projectors; at least two projectors arranged around the rotating screen, synchronously project a 2D image with the corresponding angle on one of the rotating screen, thereby restructured the 3D image similar with that of actual objects. The invention may improve the updating rate, resolution and gray step-scale, based on the current available technical level of software and hardware, the lower cost, high display effect of 3D display device may be manufactured.

Description

technical field [0001] The present invention relates to a volumetric three-dimensional display technology, more particularly, relates to a volumetric three-dimensional display technology based on multi-projector rotating screens, which can be widely used in meteorological analysis, medical imaging, air traffic control, military simulation, mechanical assembly, etc. field. Background technique [0002] Three-dimensional display can provide an intuitive and natural communication mode, and help people obtain a real, rich and reliable perception experience after comprehensively using various depth hints. It is an inevitable development trend of display technology. Stereoscopic 3D display with the help of glasses or oblique gratings can only provide limited stereoscopic pairs, the display effect is limited, and the convergence and adjustment of the human eye cannot match when observing, and long-term viewing is harmful to the eyes. Holographic dynamic display massive data transm...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G03B21/00G03B21/56H04N13/00H04N15/00G06F3/14
Inventor 朱秋东王涌天郝群黄涛
Owner BEIJING INSTITUTE OF TECHNOLOGYGY
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