Non-vertical angle 3D display method and device thereof

A display method and technology of a display device are applied in the field of image processing and can solve problems such as image keystone distortion

Inactive Publication Date: 2014-04-23
BEIJING UNIV OF POSTS & TELECOMM
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The technical problem solved by the present invention is: how to solve the problem of image trapezoidal distortion

Method used

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  • Non-vertical angle 3D display method and device thereof
  • Non-vertical angle 3D display method and device thereof
  • Non-vertical angle 3D display method and device thereof

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Experimental program
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Embodiment 1

[0046] In order to solve the problem of image trapezoidal distortion caused when the camera angle is not perpendicular to the shooting plane in the prior art, the first embodiment of the present invention provides a 3D projection image correction method at a non-perpendicular angle. The method flow chart is as follows figure 1 As shown, the method includes:

[0047] Step 101: Determine the common area of ​​the rectified image, and use the calibration plate to calculate the transformation coefficient;

[0048] Step 102: Correct the image before correction according to the transformation coefficient, and synthesize multiple corrected images according to the determined common area and display them stereoscopically.

[0049] In the embodiment of the present invention, if the display effect does not meet the requirements, the public area will be expanded or reduced, and the changed public area will be reused for stereoscopic display. The embodiment of the present invention correct...

Embodiment 2

[0053] The second embodiment of the present invention provides a 3D display method at a non-vertical angle, the flow chart of the method is as follows figure 2 As shown, the method includes:

[0054] Step 201: Using a camera array to shoot a plurality of parallax images from different angles;

[0055] In order to obtain correct parallax images under different viewing angles, the pitch angle of the camera array is adjusted by a stepping motor, so as to ensure that the shooting angle of the camera array is consistent with the viewing angle of the viewer.

[0056] According to the maximum exit (entry) screen required by the stereoscopic display effect, the distance between the cameras is adjusted by a stepping motor, so that the horizontal parallax obtained by the distance between two adjacent cameras after adjustment is equal to that when viewed by human eyes. The schematic diagram of the relationship between the horizontal parallax and the distance between the cameras is show...

Embodiment 3

[0094] The third embodiment of the present invention provides a 3D display device with a non-vertical angle, such as Figure 5 shown, including:

[0095] A determination module 501, configured to determine the common area of ​​the rectified image, and transmit the determined common area to the merging module;

[0096] Calculation module 502, configured to use the calibration board to calculate the transformation coefficient, and transmit the calculated transformation coefficient to the correction module;

[0097] The correction module 503 is configured to correct the image before correction according to the transformation coefficient, and transmit the corrected images to the extraction module;

[0098] The synthesis module 504 is configured to synthesize multiple corrected images according to the determined common area and display them stereoscopically.

[0099] Further, the aspect ratio of the calibration plate is the same as the aspect ratio of the resolution of the displa...

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Abstract

The invention provides a non-vertical angle 3D display method and a device thereof. The method comprises the following steps: a public area of corrected images is determined, and a transformation coefficient is calculated by the use of a scaling board; and the images before correction are corrected according to the transformation coefficient, and composition and stereoscopic display of the multiple corrected images are conducted according to the determined public area. According to the invention, a public area of corrected images is determined, images shot from many different angles before correction are corrected by the utilization of the transformation coefficient calculated by the scaling board, and composition and stereoscopic display of the plurality of corrected images are conducted according to the determined public area. Thus, keystone distortion of the images is eliminated.

Description

technical field [0001] The present invention relates to the technical field of image processing, in particular to a non-vertical 3D display method and device. Background technique [0002] Nowadays, 3D technology is advancing by leaps and bounds, and 3D movies are widely sought after by people for their powerful visual impact. The electronic sand table display based on ground projection enables viewers to have a more intuitive, comprehensive and accurate understanding of the scene, making it widely used in various fields. attention. [0003] Autostereoscopic projection display is based on space division multiplexing technology to project the parallax images of multiple viewpoints onto the spatial light field modulator through multiple projectors, so that the parallax images of different viewpoints can be displayed in different directions in space, realizing multi-viewpoints and large field of view , High-definition dynamic naked-eye stereoscopic display. [0004] However, ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04N13/02H04N13/04
Inventor 桑新柱解松霖郑梦青周聪于迅博
Owner BEIJING UNIV OF POSTS & TELECOMM
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