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Parallel digital construction method of three-dimensional image

A technology of three-dimensional image and construction method, which is applied in image data processing, 3D modeling, instruments, etc., can solve the problems of large amount of calculation, difficulty in realization, and difficulty in industrial application, and achieve the effect of improving efficiency and reducing running time

Inactive Publication Date: 2012-07-11
SUZHOU UNIV +1
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Problems solved by technology

[0009] However, in the above processing process, the amount of calculation is very large, so it is difficult to realize industrial application
Especially for the construction of large-scale 3D images, it is currently difficult to achieve

Method used

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  • Parallel digital construction method of three-dimensional image

Examples

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Embodiment 1

[0037] Embodiment one: see attached figure 2 As shown, a method for parallel digital construction of a 3D image, first obtains multiple sub-viewpoint digital images of a 3D object from different angles, and uses a computer cluster including a main computing node and multiple task nodes to perform the following processing:

[0038] (1) storing the sub-viewpoint digital image in the main computing node, setting the size of the subgraph to be m×m, m representing the number of pixels, and m being an integer value not greater than 128;

[0039] (2) The main computing node sends the task to the task node, and each task node performs digital filling preprocessing on the sub-view digital image in parallel, so that the sub-view digital image meets the regularity requirements;

[0040] (3) If the digital image with different viewing angles is a true color image, then each task node performs color separation processing on the true color image in parallel, and converts each color image a...

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Abstract

The invention discloses a parallel digital construction method of a three-dimensional image, wherein a plurality of branch visual angle digital images of a three-dimensional object can be acquired; the parallel digital construction method is characterized in that parallel processing is performed by using a computer cluster, and comprises the following steps of: performing regularity processing and color separation processing on the image; segmenting into sub-graphs according to a set size; arranging, by a main calculation node, each sub-graph according to a visual field sequence of the main calculation node; taking the sub-graphs at the same visual field position as a group of processing objects; performing parallel processing on a task node; performing inverse Fourier transform, central transformation processing and iterative Fourier transform on the image to obtain fraunhofer diffraction optical field distribution of the group of sub-graphs and return a result to the main calculation node; gathering the main calculation nodes to obtain a holograph H1; and representing the three-dimensional image by using interference light and spatial light modulator. According to the parallel digital construction method, phase information is successfully extracted by using a multi-process mechanism, so that the operation time of the algorithm is greatly shortened, the three-dimensional imaging efficiency is increased, and probability is provided for industrial printing of the three-dimensional image.

Description

technical field [0001] The invention relates to a method for constructing a three-dimensional image, in particular to a method for digitally constructing a three-dimensional image using parallel processing technology, which can be used in multiple technical fields such as three-dimensional image display, three-dimensional printing, and micro-nano manufacturing. Background technique [0002] Three-dimensional imaging can be divided into two categories according to its manufacturing technology. One is the technology of realizing three-dimensional images through visual tools, such as polarizer and color filter stereoscopic technology. This type of technique requires tools and coverings, so its application is very limited. The other is 3D imaging technology suitable for viewing with naked eyes, including 3D video technology using displays as the medium and 3D imaging technology using static materials as the medium, but many key technologies of this type of technology have not y...

Claims

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Application Information

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IPC IPC(8): G06T17/00
Inventor 严建峰张谨龚声蓉浦东林魏国军陈林森
Owner SUZHOU UNIV
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