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Method for compressing VR video data

A video data and video technology, which is applied in the field of compressed VR video data, can solve problems such as storage and transmission difficulties, time-consuming, and reduced viewing effects, and achieve the effect of ensuring fluency

Pending Publication Date: 2021-11-19
姜兴林
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Under the same definition requirements, the data volume of VR video is more than ten times that of ordinary video, and storage and transmission are difficult
[0006] In order to compress the data volume of VR video, the existing technology reduces the file size by reducing the definition of secondary parts in the image, but the inventors found that this compression method can only reduce the data volume to a limited extent, and actually reduces the viewing effect
Another existing technology is to perform 3D modeling on the shooting results to reduce the amount of data, but the modeled results have obvious traces when viewed, and it is very difficult to model 3D scenes with complex three-dimensional structures. Modeling objects such as characters requires separate multi-angle scanning and motion analysis, which takes a long time and requires complex calculations

Method used

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  • Method for compressing VR video data
  • Method for compressing VR video data
  • Method for compressing VR video data

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0073] like figure 1 , image 3 , Figure 4 , Figure 5 and Image 6 As shown, a method for compressing VR video data includes:

[0074] Use the VR camera fixed at the center of the scene to shoot and generate VR video 1; divide the VR picture of 1 into different target areas according to the complexity of the change on the timeline, so as to record and sample at different densities;

[0075] Record the target area 2 with complex movement or change as a dynamic 3D video;

[0076] Sampling and recording the original video information 8 of the target area 3 doing simple or repetitive motions on the timeline as a short video 9 covering a period of time, and playing this short video in a loop to fill the timeline when watching;

[0077] The original video information 10 of the target area 4 doing slow motion is sampled and recorded as a video 11 with reduced frame rate on the timeline, and this video is played at a slow speed to fill the timeline when watching;

[0078] The or...

Embodiment 2

[0081] Such as figure 2 , image 3 , Figure 4 , Figure 5 with Figure 7 As shown, a method for compressing VR video data includes:

[0082] Select the scene to be shot, determine the center of the scene as the camera position; divide the VR picture corresponding to the scene into different target areas according to the complexity of the change on the timeline, so as to record and sample at different densities;

[0083] Shoot a short video 9 covering a time line of the target area 3 doing simple or repetitive motion with an eight-eye VR camera 7, and play this short video in a loop to fill the time line when watching;

[0084] Take a single frame picture 13 of the static target area 5 with the eight-eye VR camera 7, and display this picture continuously to fill the timeline when watching;

[0085] Use the 3D camera 6 to shoot the target area 2 with complex motion or change and record it as a dynamic 3D video;

[0086] Shoot the target area 4 of slow motion with the 3D ...

Embodiment 3

[0089] Select the scene to be shot, determine the center of the scene as the camera position of the camera; shoot and send a single frame picture 13 of the static target area 5 in advance, or cover one of the target area 3 doing simple or repetitive motion The short video 9 of the motion loop is sent to the user terminal of the viewer, and then the 3D video of the target area 2 with complex motion or changes or the video 11 of the reduced frame rate of the target area 4 with slow motion is captured and sent in real time to The client side realizes the live broadcast of VR video;

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PUM

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Abstract

The invention belongs to the technical field of video data processing, and particularly relates to a method for compressing VR video data, and the method comprises the steps: carrying out the sampling and recording of a part of or all regions of a VR visual field on a timeline as any one or a combination of a single-frame picture, a short video covering a time line, and a video with a reduced frame rate, sending the sampling result to the client and filling the timeline in any one or more combination modes of continuous playing, loop playing and slow playing; sampling a part of the region in the VR visual field into a 3D video, sending the 3D video to a client, and playing the 3D video. By means of the compression method, high definition can be kept while efficient data compression is achieved, and the watching effect is prevented from being reduced.

Description

technical field [0001] The disclosure belongs to the technical field of video data processing, and in particular relates to a method for compressing VR video data. Background technique [0002] The information disclosed in this background section is only intended to increase the understanding of the general background of the present invention, and is not necessarily taken as an acknowledgment or any form of suggestion that the information constitutes the prior art already known to those skilled in the art. [0003] Virtual reality (VR) video refers to 3D panoramic video that can be viewed in a VR head-mounted display. VR video has both three-dimensional and surround effects, which can bring immersive experience to movie viewers. It has been widely used in leisure and entertainment, product display and online teaching and other fields. [0004] According to the generation method and data structure of VR video, it can be divided into VR video of real scene shooting and VR vid...

Claims

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Application Information

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IPC IPC(8): H04N19/146H04N19/137H04N19/597
CPCH04N19/146H04N19/137H04N19/597
Inventor 姜兴林姚忠新
Owner 姜兴林
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