VR video slow live broadcast interaction method and system

A technology of video live broadcast and interactive method, which is applied in the interactive field of VR video slow live broadcast, and can solve problems such as monotonous video scenes, loss of interest, and boring audience

Active Publication Date: 2021-03-19
AVIT
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The existing VR slow live broadcast only presents a monotonous video scene t

Method used

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  • VR video slow live broadcast interaction method and system
  • VR video slow live broadcast interaction method and system
  • VR video slow live broadcast interaction method and system

Examples

Experimental program
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Effect test

Embodiment 1

[0081] This embodiment provides an interactive system for VR video slow live broadcast, which includes a video preprocessing unit, a video interactive computing unit, and a video decoding and rendering unit. VR panoramic ultra-high-definition cameras are used as ultra-high-definition live broadcast sources to provide VR video slow live streams (such as 64K). Uninterrupted transmission, decoding, and rendering of the full-view live stream at the basic resolution. When the user is interested in a certain area in the live stream and wants to further experience the details of the picture, he can use the head-mounted display peripherals (such as the head-mounted display all-in-one button, or remote control, etc.) to zoom in on the region of interest, and at this time transmit several ultra-high resolution blocks of the region of interest as needed. After fusion decoding, zoom-in rendering is performed based on the center of view of the region of interest. figure 1 It is a schematic...

Embodiment 2

[0097] This embodiment provides an interactive method for slow live broadcast of VR video, which includes the following process:

[0098] Obtain the VR video slow live stream, and perform video caching on the VR video slow live stream; the buffered VR video slow live stream is copied into two copies, and the following processes are performed respectively: Downsampling a cached VR video slow live stream forms the basis Full-view bit stream, divide another buffered VR video slow live stream into video blocks and perform block encoding; at the same time transmit the basic full-view bit stream and the divided VR video slow live stream;

[0099] The user sends a request to zoom in on a specific area through the VR interactive device during the live video broadcast; after obtaining the information of the specific area and performing fusion decoding, the enlarged rendering display is performed based on the viewing angle center of the specific area. In the process, the position inform...

Embodiment 3

[0103] Taking a 64K (61440 x 30720) VR video slow live broadcast source as an example, the specific steps of this embodiment are:

[0104] The video pre-processing unit caches 10-minute VR ultra-high-definition streams into the memory.

[0105] The video preprocessing unit performs resolution down-sampling of the VR ultra-high-definition bit stream (64K, 61440x30720) to form an 8K basic full-view bit stream.

[0106] The basic full-view bit stream is not divided into blocks. The 64K ultra-high-definition VR bit stream is divided into 24 rows and 48 columns according to the ERP projection method, with a total of 1152 tiles (Tile) with the same resolution (1280x1280), based on MPEG MCTS constraints Do chunked encoding. Each block is numbered linearly from left to right and from top to bottom.

[0107] The segmented ultra-high-definition video Tile stream and the downsampled basic full-view bit stream are pushed again based on a common stream distribution protocol (such as MPEG...

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Abstract

The invention discloses a VR video slow live broadcast interaction method and system. The VR video slow live broadcast interaction method comprises the steps of: acquiring a VR video slow live broadcast stream, and carrying out the video live broadcast after preprocessing; receiving an interaction request sent by a user through using VR interaction equipment in the live video broadcasting processand responding to the interaction request, wherein the step is specifically implemented by sending a request for amplifying a specific region through VR interaction equipment in a live video broadcasting process by a user; and acquiring information of the specific area, performing fusion decoding, and performing amplified rendering display based on the view angle center of the specific area. Aiming at a new live broadcast form of slow live broadcast, audiences can feel a 360-degree all-around service scene in a VR video mode, an interaction means is introduced for weakening the interest of long-time watching, the audiences can select interested view angle areas to amplify and watch ultra-high-definition picture details, the amplification factor is adjustable, the information amount is large, the interaction feeling is strong, the display effect is excellent, the user experience is remarkably improved, and the watching loyalty of the user is improved.

Description

technical field [0001] The invention belongs to the field of virtual reality technology, and in particular relates to an interactive method and system for slow live broadcasting of VR videos. Based on the method and system, viewers can interactively and detailedly experience the VR video scene of slow live broadcasting. Background technique [0002] Slow live broadcast is an unattended live broadcast that is uninterrupted throughout the day. It is a different concept from the past live broadcast ecology. Compared with traditional live broadcasts that include elements such as camera cuts and clips, host explanations, and audience interaction, the most notable feature of slow live broadcasts is that they do not have any interference, and viewers watch the real and objective progress of events as a third party. And it is accompanied by a strong sense of substitution and curiosity about the unknown, which can prompt the audience to maintain continuous attention to a certain even...

Claims

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Application Information

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IPC IPC(8): H04N21/2187H04N21/2343H04N21/431H04N21/4402H04N21/4728H04N21/4788H04N21/485H04N21/81
CPCH04N21/2187H04N21/4728H04N21/2343H04N21/4312H04N21/440218H04N21/4858H04N21/4788H04N21/816
Inventor 刘睿李涌泉胡勇
Owner AVIT
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