Method for hiding transmission error of eight-viewpoint free three-dimensional video

A stereoscopic video and error concealment technology, applied in the field of video transmission error concealment, can solve the problems of affecting the viewing effect and loss of video stereoscopic effect, and achieve the effects of reducing the lack of video stereoscopic effect, improving bandwidth utilization, and improving transmission quality

Inactive Publication Date: 2011-08-24
TIANJIN UNIV
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  • Abstract
  • Description
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  • Application Information

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Problems solved by technology

Compared with traditional video, multi-view autostereoscopic video is more sensitive to network transmission errors and loss. In serious cases, it may cause the loss of stereoscopic effect of the video and affect the viewing effect.

Method used

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  • Method for hiding transmission error of eight-viewpoint free three-dimensional video
  • Method for hiding transmission error of eight-viewpoint free three-dimensional video

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Embodiment Construction

[0012] specific implementation

[0013] see figure 1 , a multi-view autostereoscopic video network transmission is mainly composed of a server and multiple terminals. The network transmission of autostereoscopic video is based on the existing network. Compared with traditional ordinary video, it has two outstanding features: First, multi-view stereoscopic video has a much larger amount of data than traditional video and requires more bandwidth. To meet its real-time requirements; second, stereoscopic video has more stringent requirements on the transmission performance of the network, and transmission errors or transmission loss may lose the three-dimensional effect of the video. In order to meet the real-time requirement of the stereoscopic video, the present invention adopts multi-terminal cooperation mode for network transmission, and the data of each viewpoint in the multi-viewpoint stereoscopic video of the terminal is stored independently. In order to ensure the transm...

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Abstract

The invention relates to a method for hiding a transmission error of eight-viewpoint free three-dimensional video, and the method provided by the invention comprises: informing an adjacent terminal of the uploading capability of each terminal at a time interval by each terminal; acquiring the adjacent terminal which owns a requested resource by a video requesting terminal through an information list of a server and acquiring the information of the terminal with high uploading capability; according to the uploading capability, and respectively receiving each viewpoint data and redundancy key data; using the terminal with high uploading capability to transmit more viewpoint data and redundancy key data; at a data sending end, performing the information source compression coding and channel error correction coding on the viewpoint data and redundancy key data which are to be sent, and then transmitting; and at the video requesting terminal, verifying the video data through the redundancy key data and hiding the error. By using the method to transmit the three-dimensional video, the use ratio of bandwidth can be efficiently increased and the deletion of video stereoscopic sense caused by abrupt error codes can be efficiently reduced.

Description

technical field [0001] The invention relates to the technical field of multi-viewpoint free stereoscopic video network transmission, in particular to a video transmission error concealment method. technical background [0002] Multi-view autostereoscopic video technology is an important development direction of multimedia technology in the future. Compared with traditional video, multi-view stereo video generally has eight or nine viewpoints for one frame of image. The amount of multi-viewpoint stereoscopic video data is much larger than that of single-channel video. In order to solve the high bandwidth requirements of multi-viewpoint stereoscopic video, the present invention uses multi-terminal cooperation for transmission, and saves each viewpoint as a video file independently. Each terminal with resources can provide video data of one or several viewpoints to the orderer according to the network status. [0003] Due to the inevitable occurrence of transmission errors or ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04N7/64H04N13/00H04N21/647H04N19/89
Inventor 鲁帅罗咏梅刘晓辉
Owner TIANJIN UNIV
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