Nonreference Method for Estimating PSNR of MPEG-2 Coded Video by Using DCT Coefficients and Picture Energy

Irreversible video coding like MPEG-2 may cause deterioration in picture quality depending on the properties of the source images and coding type. A monitoring technology to assess picture quality with fluctuations is needed for digital video services. We previously proposed a method to estimate the...

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Bibliographic Details
Published in:IEEE transactions on circuits and systems for video technology 2008-06, Vol.18 (6), p.817-826
Main Authors: Ichigaya, A., Nishida, Y., Nakasu, E.
Format: Article
Language:English
Subjects:
AC energy
Applied sciences
Coding
Coding, codes
Decoding
Detection, estimation, filtering, equalization, prediction
discrete cosine transform (DCT) information
Discrete cosine transforms
Distortion measurement
Energy use
Estimates
Estimating
Exact sciences and technology
Fluctuation
Fluctuations
Image coding
Image processing
Information, signal and communications theory
Miscellaneous
Monitoring
MPEG-2
nonreference method
not-coded blocks
peak signal-to-noise ratio (PSNR)
Pictures
PSNR
Signal and communications theory
Signal processing
Signal to noise ratio
Signal, noise
Streaming media
Studies
Telecommunications and information theory
Video coding
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Summary:Irreversible video coding like MPEG-2 may cause deterioration in picture quality depending on the properties of the source images and coding type. A monitoring technology to assess picture quality with fluctuations is needed for digital video services. We previously proposed a method to estimate the peak signal-to-noise-ratio (PSNR) of MPEG-2 coded video by using bit stream information. The method is categorized as a nonreference measurement that does not use source signals. It estimates the amount of distortion in each frame by analyzing the information in the decoded DCT coefficients. This paper describes a way to improve the accuracy of the PSNR estimation of our previous method, especially for the not coded blocks. The proposed method utilizes the temporal fluctuations of ac energy and estimates the PSNR of not-coded blocks from the inter-frame correlation of the decoded pictures. Experimental results show that the determination coefficient R 2 between estimated and actual PSNRs is above 0.95 for every type of picture frame.
ISSN:1051-8215
1558-2205
DOI:10.1109/TCSVT.2008.920658