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Automatic detection method for three-dimensional (3D) side-by-side video

A left and right format, automatic detection technology, applied in the direction of image communication, electrical components, stereo system, etc.

Inactive Publication Date: 2012-11-07
SHANGHAI UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] With the development of video networks, the number of videos uploaded to video sharing websites, including 2D videos and 3D videos, is increasing massively, and with the showing of 3D movies in cinemas, how to bring 3D movies home has become a is imminent, but there are still many challenges, one of the most important issues is the distinction between 3D video and 2D video

Method used

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  • Automatic detection method for three-dimensional (3D) side-by-side video
  • Automatic detection method for three-dimensional (3D) side-by-side video
  • Automatic detection method for three-dimensional (3D) side-by-side video

Examples

Experimental program
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Embodiment 1

[0040] see Figure 1 ~ Figure 4 , this 3D left and right format video automatic detection method, the operation steps are as follows:

[0041] [step S1], given a 3D left and right format video files with N=100, in order to be automatically detected as 3D left and right format videos;

[0042] [Step S2], preprocessing the given video and extracting the features of the left and right sides of the video, the video size is set to 320×240 (320 is wide, 240 is high);

[0043] [Step S21], the feature of the left half of each frame of video extracted is Lef;

[0044] [Step S22], the extracted feature of the right half of each frame of video is Rig;

[0045] [Step S3], calculate the ratio Ratio of the difference between the left and right half features and the left half features;

[0046] [Step S4], comparing the ratio Ratio with the threshold T1 to determine whether it is valid frame data, including the following steps:

[0047] (1), set the threshold T1=0.02 to be compared with t...

Embodiment 2

[0058] see Figure 1 ~ Figure 4 , this 3D left and right format video automatic detection method, the operation steps are as follows:

[0059] [Step S1], given a 2D video file with N=100, in case it is automatically detected as a 3D or so format video;

[0060] [Step S2], preprocessing the given video and extracting the features of the left and right sides of the video, the video size is set to 320×240 (320 is wide, 240 is high);

[0061] [Step S21], the feature of the left half of each frame of video extracted is Lef;

[0062] [Step S22], the extracted feature of the right half of each frame of video is Rig;

[0063] [Step S3], calculate the ratio Ratio of the difference between the left and right half features and the left half features;

[0064] [Step S4], comparing the ratio Ratio with the threshold T1 to determine whether it is valid frame data, including the following steps:

[0065] (1), set the threshold T1=0.02 to be compared with the frame ratio Ratio,

[0066] ...

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Abstract

The invention discloses an automatic detection method for a three-dimensional (3D) side-by-side video. The method comprises the following steps of: extracting left and right characteristics of each frame from a given N-frame video file comprising the 3D side-by-side video and a 2D video, and calculating ratios of differences between the left and right characteristics to the left characteristics; and judging whether the given N-frame video file is the 3D side-by-side video or not according to an average value of the ratios of frames consistent with conditions. The 3D side-by-side video can be distinguished from an ordinary 2D video, so that the 3D side-by-side video can be automatically identified.

Description

technical field [0001] The invention belongs to the technical field of stereoscopic and 3D processing, and relates to a detection method for 3D left and right format videos, in particular to a detection method for distinguishing 3D left and right format videos from 2D videos. Background technique [0002] With the development of video networks, the number of videos uploaded to video sharing websites, including 2D videos and 3D videos, is increasing massively, and with the showing of 3D movies in cinemas, how to bring 3D movies home has become a However, there are still many challenges, one of the most important issues is the distinction between 3D video and 2D video. [0003] The law utilized by the present invention is as follows: the biggest difference between 3D left and right format video files and 2D video files is that the left and right halves of 3D left and right format videos look very similar, while 2D videos do not. Therefore, we use the feature difference betwee...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04N13/00H04N13/04
Inventor 李跃利连惠城
Owner SHANGHAI UNIV
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