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A method of editing vr images by coordinate transformation

A coordinate transformation and editing technology, applied in the field of VR image editing, can solve problems such as loss of stereoscopic effect, achieve realistic effects, overcome realistic effects, and have good stereoscopic and immersive effects.

Active Publication Date: 2021-05-11
CHENGDU SOBEY DIGITAL TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The purpose of the present invention is to solve the problem in the prior art that the region of the VR panorama loses its original three-dimensional sense due to the direct processing of pasting a rectangular frame on the VR panorama. The present invention proposes a method for editing VR images using coordinate transformation Methods

Method used

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  • A method of editing vr images by coordinate transformation
  • A method of editing vr images by coordinate transformation
  • A method of editing vr images by coordinate transformation

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0123] The present embodiment describes in detail the technical solution of the present invention in conjunction with the accompanying drawings:

[0124] Step 1: Establish a three-dimensional coordinate system, construct a three-dimensional spherical surface in the three-dimensional coordinate system, and map the VR panorama to be edited onto the three-dimensional spherical surface;

[0125] Specific instructions:

[0126] Establish a three-dimensional coordinate system in the virtual space. What this embodiment establishes is a left-handed coordinate system. At the same time, a three-dimensional spherical surface is constructed in the coordinate system, and the VR panorama that needs to be edited (may be the editing of the entire VR panorama or local editing) is converted into Texture, and then mapped to a three-dimensional spherical surface;

[0127] About how to establish a three-dimensional spherical surface: set the camera (here refers to the selected virtual camera) as ...

Embodiment 2

[0164] On the basis of embodiment one, Figure 5 It is the VR panorama that is not processed, and the present embodiment has screened the VR panorama (see Figure 5 ) for texture processing, the projection plan of the part to be edited on the three-dimensional spherical surface of the VR panorama is shown in Image 6 , Figure 10 It is the effect diagram after processing the 3D image corresponding to the projection plan, and finally obtains the edited overall VR panorama, see Figure 11 ;

[0165] After performing the above-mentioned texture processing on a specific VR panorama, it is found that the effect of the texture returns to the panorama is good, because no matter which projection plane is observed, the texture has completely covered the original image, indicating that the processing effect of this solution is satisfactory. Texture requirements.

Embodiment 3

[0167] This embodiment specifically illustrates a coordinate transformation method, specifically as follows:

[0168] Step 1: Establish a three-dimensional coordinate system, and establish a three-dimensional spherical surface in the three-dimensional coordinate system;

[0169] Step 2: Map the 3D image onto a 3D spherical surface, obtain the image editing parameters including the opening angle of the camera, focal length parameters, the rotation angle of the camera and the upward viewing angle of the camera, and obtain the 3D image in the 3D coordinate system according to the 3D image and image editing parameters The projection plane in ;

[0170] Step 3: Obtain the coordinates of the three-dimensional image corresponding to the projection plane according to the image editing parameters.

[0171] Step 3.1: Obtain the proportional relationship c between the three-dimensional image and the projection plane;

[0172] c=r×tan(e / 2)×2 / n H

[0173] Where r is the radius of the t...

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Abstract

The invention discloses a method for editing VR images by using coordinate transformation, aiming at solving the problem in the prior art that the area of ​​the VR panorama loses its original stereoscopic effect by directly pasting a rectangular frame on the VR panorama; By placing the VR panorama on a virtual three-dimensional spherical surface, by determining the projection plane of the VR panorama to obtain the coordinates of the VR panorama in the three-dimensional coordinate system, and directly editing the VR panorama in the three-dimensional coordinates, the final obtained The imaging effect of the VR panorama is better. Compared with the existing way of editing images directly on the VR panorama plane, the edited VR panorama finally obtained by the present invention has a better three-dimensional sense and a better sense of immersion, enabling users to experience better VR imaging effect; the present invention is applicable to related fields of VR image processing.

Description

technical field [0001] The invention relates to the field of VR image editing, in particular to a method for editing VR images by using coordinate transformation. Background technique [0002] The successive release of HTC, Oculus, and SONY's three major head-up displays made 2016 the first year of VR. After decades of rapid development, VR technology involves many fields including military aerospace, emergency drills, radio and television broadcasting, entertainment and leisure. The imaging principle of VR is mainly to use VR glasses and other equipment to project a 360-degree panoramic view into human eyes, and then use the difference in vision between the left and right eyes to form a 3D effect. [0003] In the radio and television media industry, there is a demand for VR image editing. However, the difference between VR panorama pictures and ordinary pictures is that VR panorama pictures are processed and stitched together from multiple pictures. Ordinary images are a ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06T19/20G06T19/00G06T15/04G06T3/00
CPCG06T3/005G06T15/04G06T19/006G06T19/20G06T2219/2016
Inventor 杨益红罗天陈晓军
Owner CHENGDU SOBEY DIGITAL TECH CO LTD
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