Results 191 to 200 of about 13,088 (235)
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No-Reference Estimation of the Coding PSNR for H.264-Coded Sequences

IEEE Transactions on Consumer Electronics, 2007
In this article an algorithm for the evaluation of the picture quality of H.264-coded video sequences is introduced. As a measure of picture quality the peak signal to noise ratio (PSNR) is used. While the computation of the PSNR usually considers a reference signal in comparison to the distorted video sequence, the proposed algorithm uses the coded ...
exaly   +2 more sources

Modified PSNR Metric for Watermarked-Image Assessment

2023 20th International Multi-Conference on Systems, Signals & Devices (SSD), 2023
exaly   +2 more sources

Reversible Image Steganography to Achieve Effective PSNR

Lecture Notes in Electrical Engineering, 2023
Raj Gaurav
exaly   +2 more sources

No reference PSNR estimation for compressed pictures

Proceedings. International Conference on Image Processing, 2003
Many user-end applications require an estimate of the quality of coded video or images without having access to the original, i.e. a no-reference quality metric. Furthermore, in many such applications, the compressed video bitstream is also not available.
Deepak S. Turaga   +2 more
openaire   +1 more source

Stego image quality and the reliability of PSNR

2010 2nd International Conference on Image Processing Theory, Tools and Applications, 2010
Digital image steganography is the art of hiding information in other digital images. Moreover, image quality evaluation has many difficulties such as the amount of degradation or distortion induced in the reconstructed image. The peak signal-to-noise ratio (PSNR) is the most common metric used to evaluate the stego image quality.
Adel Almohammad, Gheorghita Ghinea
openaire   +1 more source

Predict the MOS and the PSNR by the neural network

2012 International Conference on Multimedia Computing and Systems, 2012
In order to change the judgment of the human eye by an objective measure, we present in this paper the new method to measure the quality of the video. This latter predicts the mean opinion score (MOS) and the peak signal to noise ratio (PSNR) by providing height parameters extracted from original and coded videos. The eight parameters that are used are:
Hasnaa El Khattabi   +2 more
openaire   +1 more source

Image Quality Metrics: PSNR vs. SSIM

2010 20th International Conference on Pattern Recognition, 2010
In this paper, we analyse two well-known objective image quality metrics, the peak-signal-to-noise ratio (PSNR) as well as the structural similarity index measure (SSIM), and we derive a simple mathematical relationship between them which works for various kinds of image degradations such as Gaussian blur, additive Gaussian white noise, jpeg and ...
Alain Horé, Djemel Ziou
openaire   +1 more source

No-Reference PSNR Estimation for HEVC Encoded Video

IEEE Transactions on Broadcasting, 2013
Video quality estimation is considered a means of monitoring quality of service in broadcasting or IPTV services. In this paper, a no-reference peak signal-to-noise ratio (PSNR) estimation method is first presented for a quadtree-based motion estimation or compensation and transform coding scheme such as HEVC test model (HM), which is expected to be ...
Lee, BS Lee, Bum-Shik   +1 more
openaire   +2 more sources

A perceptually relevant shearlet-based adaptation of the PSNR

2017 IEEE International Conference on Image Processing (ICIP), 2017
Although being one of the simplest and most widely used image quality metrics (IQMs) the peak signal-to-noise ratio (PSNR) correlates only poorly with visual quality as perceived by humans. Based on an analysis of the non-linear mapping from PSNR to mean opinion scores (MOS) we identify a functional mapping parameter to adapt the PSNR perceptually ...
Sebastian Bosse   +3 more
openaire   +1 more source

Modeling and reduction of PSNR fluctuations in 3D wavelet coding

Proceedings 2001 International Conference on Image Processing (Cat. No.01CH37205), 2002
We study the effects of the quantization of the three-dimensional wavelet transform coefficients, encoded using a 3D zerotree-based compression scheme. The processing of the quantization error operated by the synthesis filter bank actually determines a modulation of the reconstruction error statistics.
SIGNORONI, Alberto, LEONARDI, Riccardo
openaire   +2 more sources

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