Processing method for subjective evaluation result of stereo video quality
A subjective evaluation and stereoscopic video technology, applied in stereoscopic systems, televisions, electrical components, etc., can solve the problems of subject variability, conclusion analysis, rule exploration influence, experimental environment instability, etc.
Active Publication Date: 2015-07-01
TIANJIN UNIV
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[0006] The research work on the subjective evaluation of stereoscopic images / videos at home and abroad mainly focuses on the design of evaluation methods and the exploration of experimental results. However, there is often instability in the experimental environment between the acquisition of evaluation results and the analysis of evaluation results. , Subject differences and other factors interfere with the accuracy of the experimental results
Therefore, direct analysis of the evaluation data obtained from subjective experiments will inevitably have a certain impact on the conclusion analysis and regular exploration.
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[0087] Such as Figure 30 As shown, a method for processing subjective evaluation results of stereoscopic video quality of the present invention includes the following steps:
[0088] Step (1): First, design subjective test experiments according to ITU-R BT.500 and ITU-R BT.1438 standards, obtain evaluation data samples, and record them in a two-dimensional table, in which behavioral video sequences are listed as observers, from From the perspective of probability statistics, calculate the kurtosis coefficient β of the evaluation data sample 2j ; If 2≤β 2j ≤4, the sample satisfies the normal distribution; if 0≤β 2j 2j , The sample satisfies non-normal distribution;
[0089] The kurtosis coefficient β of the data sample 2j ,Specifically:
[0090] β 2 j = m 4 j ( m 2 j ) 2 - - - ( 1 )
[0091] m 2 j = X i = 1 N ( u ij - u ‾ j ) 2 N - - - ( 2 )
[009...
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The invention discloses a processing method for a subjective evaluation result of the stereo video quality. The processing method mainly comprises the steps of weeding out abnormal parts, removing abnormal values and carrying out equalization processing. Subjective evaluation data samples of a stereo video after H.264 compression are processed according to the Grubbs test method and the processing method for the subjective evaluation result of the stereo video quality respectively, and the test result shows that the minimum detection rate of the Grubbs test method is only higher than 1.5 per thousand, and the minimum data detection rate of the processing method for the subjective evaluation result of the stereo video quality is higher than 5.8 per thousand. In this way, the data processing capacity of the processing method for the subjective evaluation result of the stereo video quality is obviously superior to that of the Grubbs test method, and the processing method for the subjective evaluation result of the stereo video quality can play an important role in processing the subjective evaluation result of the stereo video. In addition, data samples processed by the processing method for the subjective evaluation result of the stereo video quality are studied, and conclusions of four aspects are drawn and include that the relation of parameters and the injury tolerance of the stereo video quality is quantized; information carried by a reference point of view plays a leading role; the high-resolution-ration video contributes to degradation and compensation; the capacity of the female to accept the visual injury is higher than that of the male to accept the visual injury. Thus, forceful support is provided for optimizing the communication technology of the stereo video.
Description
Technical field [0001] The invention relates to the field of subjective evaluation and data screening processing of stereoscopic videos, in particular to a method for processing subjective evaluation results of stereoscopic video quality. Background technique [0002] In recent years, with the rapid development of digital video technology, stereoscopic video technology has gradually entered people's lives and has become one of the most concerned information forms in people's daily lives. However, the collection, compression, and transmission of stereoscopic video will cause a certain degree of degradation and damage to the video, affect the viewer’s visual perception and physical health, and become the main restricting factor for the rapid popularity of stereoscopic products. Therefore, based on research affecting stereoscopic In video quality research, it is very important to find a reliable and effective stereoscopic video quality evaluation method. [0003] Three-dimensional vi...
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IPC IPC(8): H04N17/00H04N13/00
Inventor 李素梅杨建王光华薛超
Owner TIANJIN UNIV