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Oblique photography modeling data generation method applied to immersive display equipment

A display device and oblique photography technology, applied in the field of simulation display, can solve the problems of oblique photography modeling data jam, delay, etc., achieve good smoothing effect, improve efficiency, and improve the effect of content quality

Pending Publication Date: 2020-03-17
SICHUAN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The present invention provides a method for generating oblique photographic modeling data applied in an immersive display device to solve the problems of stuttering and delay when viewing oblique photographic modeling data in an immersive display device

Method used

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  • Oblique photography modeling data generation method applied to immersive display equipment
  • Oblique photography modeling data generation method applied to immersive display equipment
  • Oblique photography modeling data generation method applied to immersive display equipment

Examples

Experimental program
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Effect test

Embodiment 1

[0052] Applied oblique photography modeling data generation methods in immersive display devices, such as figure 1 shown, including:

[0053] Step 100: According to the established route of oblique photogrammetry, record the omni-directional visual content of the flight simulation visual content at each node on the route;

[0054] Such as figure 2 and image 3 As shown, each node performs six directions (up, down, left, right, front, back) scene content shooting and saving, and the resolution of each unidirectional image is 1920*1920, and the image size is between 1M and 5M In between, the acquisition of panoramic space content is completed.

[0055] Step 101: Synthesize the visual content in six directions into the corresponding node flight simulation visual panorama through the panoramic texture mapping technology; wherein, the panoramic texture mapping technology selects the cubic surface panoramic mapping, and the specific process of the cubic surface panoramic mapping...

Embodiment 2

[0075] The resolution of current immersive display devices is mostly 1080*1200, and the combined binoculars is 2160*1200. The resolution is limited, and it is easy to produce jaggedness and graininess during viewing, which makes large-scale natural scenes appear in immersive display. The roaming effect in the device is greatly affected. The following will solve the problem of poor viewing quality of large-scale natural scenes in the display process of immersive display devices.

[0076] The difference between the second embodiment and the first embodiment is that, if Figure 5 As shown, before the above step 103 is performed, that is, before the flight simulation scene panorama is loaded into the immersive display device:

[0077] Step 200: Submit the flight simulation scene panorama to the fragment shader for processing;

[0078] Step 201: The fragment shader performs extraction and smoothing.

[0079] Smoothing in the fragment shader uses the Fast Approximate Antialiasing ...

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Abstract

The invention belongs to the technical field of simulation display, and discloses an oblique photography modeling data generation method applied to immersive display equipment, which comprises the following steps: according to a set path of oblique photography measurement, carrying out omnibearing visual content recording on flight simulation visual content in six surfaces including upper, lower,left, right, front and back at each node on the path; synthesizing the visual contents in the six directions into a corresponding node flight simulation visual panorama through a panorama texture mapping technology; and loading the flight simulation visual panorama to immersive display equipment. The invention aims to solve the problems of blockage and delay generated when oblique photography modeling data is viewed in the immersive display equipment.

Description

technical field [0001] The invention belongs to the technical field of simulation display, and in particular relates to a method for generating oblique photographic modeling data applied in an immersive display device. Background technique [0002] High-precision automatic modeling of large-scale natural scenes is an important problem to be solved urgently for the visual system of flight simulators. Aerial oblique photography modeling technology has realized the modeling automation of large-scale natural environments. Compared with traditional modeling methods, it has ultra-high High resolution, good visual effects. However, since the visual system of the flight simulator needs to use immersive display devices such as virtual image systems or virtual reality helmets, the distribution of vertices of oblique photographic modeling data is uneven, and the unbalanced rendering efficiency load causes roaming in immersive display devices to freeze. Specifically, when the head is t...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06T15/04
CPCG06T15/04
Inventor 季玉龙黄操陈怀歆张婷婷吴志红王一周思源龚昱宁罗子奇
Owner SICHUAN UNIV
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