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A three-dimensional holographic display method based on volume holographic storage technology

A technology of three-dimensional holography and storage technology, applied in the field of image storage and three-dimensional display, can solve the problems of limited real-time reproduction of high-resolution holography, inability to digitally process source images, and difficulty in processing far-field imaging data, saving computing time. , good real-time, easy to reproduce the effect

Active Publication Date: 2018-03-13
HARBIN INST OF TECH
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  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The present invention aims to solve the problems that the source image of the existing holographic technology cannot be digitally processed, the number of multiplexed storage frames is small, and the far-field imaging data processing of the format is difficult, and the real-time problem of high-resolution holographic reproduction in digital holographic technology is limited.

Method used

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  • A three-dimensional holographic display method based on volume holographic storage technology
  • A three-dimensional holographic display method based on volume holographic storage technology
  • A three-dimensional holographic display method based on volume holographic storage technology

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specific Embodiment approach 1

[0043] Embodiment 1: This method uses CCD to image objects or environments with different viewing angles, and performs three-dimensional holographic display based on volume holographic storage technology for the imaged images;

[0044] A three-dimensional holographic display method based on volume holographic storage technology, comprising the following steps:

[0045] Step 1. Processing of images to be stored:

[0046] Step 1. Segment the image to be stored (displayed):

[0047] (1) If the image is n images captured by one-dimensional scanning:

[0048]Step 1.1.1, number n images sequentially as 1 to n; then divide each image into n strips on average according to the scanning direction, as shown in Figure 1 (A);

[0049] Step 1.1.2, the n bars of the first image are respectively recorded as 1 1 ,1 2 ,…,1 n , and the n bars of the second image are recorded as 2 1 ,2 2 ,…,2 n , mark the bars of each image in turn until the n bars of the nth image are recorded as n 1 , ...

specific Embodiment approach 2

[0070] The steps described in step 1.2.3 of the present embodiment sequentially number the bars according to the positions of the bars, and divide the first image into bars are as follows:

[0071] For the blocks in m rows and p columns in the first image, number the blocks in turn according to the position of the block 1 ij , i=1,2,...,m; j=1,2,...,p;1 ij Represents the bar at row i and column j of the first image;

[0072] Divide the first image into the following form by strips:

[0073] Other steps and parameters are the same as those in the first embodiment.

specific Embodiment approach 3

[0074] According to step 2.2.1 of this embodiment, extract the strips of the first row and the first column of each image in the m×p images, and extract the strips of the m×p images in the reverse order of the image numbers. The specific steps of arranging the blocks into m rows and p columns from left to right and from top to bottom are as follows:

[0075] Extract block 1 of row 1 and column 1 of the first image 11 , extract the segment 2 of the first row and the first column of the second image 11 , and so on, the strips of the first row and the first column of each image in n=m*p images are extracted; then the strips of m*p images are extracted according to the reverse order of the image number From left to right and from top to bottom, they are arranged in m rows and p columns, that is,

[0076] Other steps and parameters are the same as those in Embodiment 1 or 2.

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Abstract

The invention provides a three-dimensional holographic display method based on a body holographic storage technology and relates to an image storage and three-dimensional display method, aiming at solving the problems that according to an existing holography technology, a source image cannot be digitized, a multiplexing storage amplitude quantity is less and far-field imaging data of a breadth is difficult to process, and a digital holographic technology has limited instantaneity of high-resolution holographic representation. According to the method provided by the invention, a CCD (Charge Coupled Device) is used for imaging objects or environments with different visual angles and decorating or processing according to requirements; then the images are divided according to a specific algorithm and are recombined to form new pages; and the pages are recorded into points or lines of media by using a body holographic storage light path through a displacement multiplexing technology, so that three-dimensional representation can be realized. The three-dimensional holographic display method based on the body holographic storage technology is suitable for three-dimensional display of objects.

Description

technical field [0001] The invention relates to image storage and three-dimensional display methods. Background technique [0002] The traditional 3D imaging technology uses a 2D screen to display a composite image or a dynamic 2D image, and uses the binocular parallax (or visual persistence effect) of the human eye to express a 3D effect, such as using electronic switches, wavelength conversion or polarization principles to construct Stereoscopic glasses, multi-view stereoscopic displays that acquire two-dimensional images of objects from multiple angles and then output corresponding images in different windows, and lens array stereoscopic displays that use lens arrays to create binocular parallax, etc. However, these imaging methods only have psychological depth of field and lack real three-dimensional presentation. The ideal 3D imaging technology should provide depth perception at all viewpoints and distances, and can observe real 3D images in a full view and from multip...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G03H1/22G02B27/22
Inventor 王健孙秀冬骆素华艾德喜
Owner HARBIN INST OF TECH
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