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Method of multi viewing angle x-ray stereo imaging and system

A stereoscopic imaging and X-ray technology, applied in the field of multi-view X-ray stereoscopic imaging, can solve problems such as fixation

Active Publication Date: 2004-07-21
TSINGHUA UNIV +1
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  • Abstract
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Problems solved by technology

Although the acquisition methods are different, they all have a shortcoming, that is, they can only provide stereoscopic images from shooting angles, and the viewpoint position, line of sight direction and parallax are all fixed, which may not meet the parallax requirements of human eyes to observe objects. To obtain stereoscopic images from other angles, only Ability to re-shoot in another location

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Embodiment Construction

[0025] In the multi-view X-ray stereoscopic imaging method of the present invention, first, according to the X-ray imaging system parameters and data acquisition parameters, an angle and distance index is established for a series of pixel columns of projection image data collected along the circumference and spiral trajectory, and the indexes are sorted Store for quick lookup; then calculate the pixel angle and distance parameters on the stereoscopic image pair to be synthesized according to the selected viewing point of view, line of sight direction and parallax effect, thereby searching for the storage index and corresponding image data and performing image synthesis. The multi-view X-ray stereoscopic imaging system in the present invention includes an X-ray digital imaging acquisition device capable of realizing circular and spiral trajectory scanning, a computer device and a stereoscopic display device. The X-ray digital imaging acquisition device inputs the X-ray images in...

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Abstract

In the present invention, firstly angle and distance indexes are established to image element array for a series of projection image data collected along circular or spiral trajectory according to data collection parameter and imaging system parameter of X ray and to carry on index ordering storage in order to make convenience for quickly seeking, then image angle and distance parameter on stereo-image pair which needs to be synthesized is calculated out according to selected viewing visual point, visual direction and visual difference effect so storage index and corresponding image data are seeked for carrying on image synthesis as per abovementioned information.

Description

technical field [0001] The invention relates to the field of digital image processing of radiation imaging, in particular to a method and system for multi-view X-ray stereoscopic imaging. Background technique [0002] X-ray imaging technology is widely used in the fields of industrial non-destructive testing, medical diagnosis and scientific research. Three-dimensional or stereoscopic display technology is used to enhance the spatial location information of radiography, allowing inspectors to better understand the spatial relationship of defects or foreign objects. Computed tomography technology obtains a series of scanning images from different angles, uses tomographic reconstruction algorithm to calculate the tomographic image of the object, and draws the three-dimensional image through the three-dimensional visualization method. Although computed tomography technology can obtain accurate three-dimensional space information, the calculation amount of reconstruction calcul...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G02B27/22G03B42/02G06T15/00
Inventor 肖永顺陈志强张丽
Owner TSINGHUA UNIV
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