Method and device for improving definition of ultra-high-definition 4K-resolution VR video

A technology of video clarity and resolution, applied in the ultra-high-definition field, can solve the problems of not making full use of the ultra-high-definition resolution space and 4K resolution.

Inactive Publication Date: 2020-12-25
上海乐蜗信息科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0009] In order to overcome the deficiencies of the prior art, the purpose of the present invention is to provide a method and device for improving the definition of VR video with ul

Method used

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  • Method and device for improving definition of ultra-high-definition 4K-resolution VR video
  • Method and device for improving definition of ultra-high-definition 4K-resolution VR video
  • Method and device for improving definition of ultra-high-definition 4K-resolution VR video

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specific Embodiment 1

[0051] Such as figure 1 As shown, the embodiment of the present invention provides a method for improving the definition of a VR video with an ultra-high-definition 4K resolution, including an expansion step S1 and a restoration step S2.

[0052] The expansion step S1 expands and processes the spherical VR video into a rectangular VR video; the restoration step S2 restores the rectangular VR video into a spherical VR video.

[0053] Such as figure 2As shown, the unfolding step S1 may include steps S11-S14.

[0054] Step S11, setting the hotspot spherical surface and the non-hotspot spherical surface on the spherical VR video whose equator resolution is M. The purpose of this step is to define the hot sphere on the spherical surface. For example, when it is applied to concerts, parties, press conferences and other scenes, the hemisphere facing the stage can be used as the hot sphere, or the hemisphere facing the stadium in sports scenes can be used as the hot sphere.

[005...

specific Embodiment 2

[0078] Such as Figure 4 As shown, the embodiment of the present invention provides an ultra-high-definition 4K resolution VR video resolution enhancement device, including an expansion module 21 and a restoration module 22 connected to each other. The expansion module 21 expands and processes the spherical VR video into a rectangular VR video; the restoration module 22 restores the rectangular VR video into a spherical VR video.

[0079] The deployment module 21 is used for:

[0080] Set the hotspot hemisphere and non-hotspot hemisphere on the spherical VR video with an equatorial resolution of 4320;

[0081] Expand the spherical VR video with a resolution of 4320 at the equator into a rectangular VR video with a resolution of 4320*2160, where the hotspot hemisphere is mapped to the hotspot area at one end of the rectangular VR video, and the non-hotspot hemisphere is mapped to the non-hot spot at the other end of the rectangular VR video area; the resolution of the hotspot...

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Abstract

The invention discloses a method and device for improving the definition of an ultra-high-definition 4K-resolution VR video, and the method comprises the steps: setting a hotspot spherical surface anda non-hotspot spherical surface on a spherical VR video, enabling the spherical VR video to be unfolded into a rectangular VR video with the resolution of M * H, and enabling the hotspot spherical surface and the non-hotspot spherical surface to be respectively mapped to a hotspot region and a non-hotspot region of the rectangular VR video; processing the resolution of the picture of the non-hotspot area to obtain a rectangular VR video with the resolution of N * H; and reversely carrying out the above steps to recover and obtain the spherical VR video. According to the method, the space withthe ultra-high-definition resolution is fully utilized, a spherical VR video with the equator resolution higher than 3840 can be supported, and the spherical effective information is increased; the method can be seamlessly compatible with equipment with various standard ultra-high-definition resolutions; only the width of the non-hotspot spherical surface is slightly scaled, so the extra distortion and the image quality reduction degree caused by a full-image stretching or compressing mode are remarkably reduced, and the performance consumption of image rendering is remarkably reduced; and the coherence of the original spherical picture is not damaged.

Description

technical field [0001] The invention relates to the field of ultra-high-definition technology, in particular to a method and device for improving the definition of ultra-high-definition 4K resolution VR video. Background technique [0002] Conventional ultra-high-definition 4K resolution is 3840*2160, while ERP (Equi-Rectangular Projection, equidistant cylindrical projection) projected VR (Virtual Reality, virtual reality) video aspect ratio is 2:1, in ultra-high-definition resolution The frame can only reach 3840*1920, that is, the highest support for VR video with a resolution of 3840 at the equator. [0003] There are currently three types of 4KVR video resolution solutions: [0004] 1. Maintaining an aspect ratio of 2:1 and adopting a resolution of 3840*1920 does not make full use of the 4K resolution of 2160. When transmitting through standard physical interfaces such as SDI or HDMI, black borders need to be filled to meet the height of 16:9. The aspect ratio is requi...

Claims

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Application Information

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IPC IPC(8): H04N7/015H04N7/01
CPCH04N7/0117H04N7/0125H04N7/015
Inventor 仝晓亮
Owner 上海乐蜗信息科技有限公司
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