Results 251 to 260 of about 90,796,744 (298)

Peak Signal-to-Noise Ratio Revisited: Is Simple Beautiful?

2012 Fourth International Workshop on Quality of Multimedia Experience, 2012
Heavy criticism has been directed against using peak signal-to-noise ratio (PSNR) as a full reference quality metric for digitally processed images and video, since many studies have shown a weak correlation between subjective quality scores and the respective PSNR values.
Junyong You, Jari Korhonen
exaly   +3 more sources

An Automated Algorithm of Peak Recognition Based on Continuous Wavelet Transformation and Local Signal-to-Noise Ratio

Applied Spectroscopy, 2017
Raman peaks carry valuable information about constituent chemical bonds. Therefore, peak recognition is a very essential part of spectral analysis. The fully automated peak recognition is convenient in practical application. A fully automated Raman peaks recognition algorithm based on continuous wavelet transformation and local signal-to-noise ratio ...
Yihui Wu, Peng Hao
exaly   +3 more sources

NRPSNR: No-Reference Peak Signal-to-Noise Ratio for JPEG2000

2013 Data Compression Conference, 2013
The aim of this work is to define a no-referenced perceptual image quality estimator applying the perceptual concepts of the Chromatic Induction Model. The approach consists in comparing the received image, presumably degraded, against the perceptual versions (different distances) of this image degraded by means of a Model of Chromatic Induction, which
Jaime Moreno 0001   +2 more
openaire   +1 more source

Smoothing and the signal-to-noise ratio of peaks in electron spectroscopy

Journal of Electron Spectroscopy and Related Phenomena, 1989
Abstract The smoothing of noisy peaks in electron Spectroscopy by convolutional algorithms is studied further to provide clear guidelines with which the analyst may obtain a rapid optimum result. Following detailed earlier work by Seah, Dench, Gale and Groves we focus on the Savizky and Golay cubic/quadratic, quartic/quintic and Gaussian ...
M.P. Seah, W.A. Dench
openaire   +1 more source

Improvement of the signal-to-noise ratio of chromatographic peaks by Fourier transform

Analytica Chimica Acta, 1991
Abstract A method is described for digital smoothing of chromatographic signals by using Fourier transform and is compared with some earlier methods. A new procedure is reported for determining the correct value of the cutoff frequency; a smoothing window is described which distorts the frequency function only slightly at low frequencies but smooths ...
Attila Felinger   +2 more
openaire   +1 more source

A Study of the Perceptually Weighted Peak Signal-To-Noise Ratio (WPSNR) for Image Compression

2019 IEEE International Conference on Image Processing (ICIP), 2019
The peak signal-to-noise ratio (PSNR) is the most used objective measure for assessing perceptual image quality when it comes to image and video compression tasks, despite the fact that it exhibits weak performance in reflecting human perception. To address this problem, many image quality assessment (IQA) methods were proposed, e. g.
Johannes Erfurt   +5 more
openaire   +2 more sources

Quantification of the accuracy limits of image registration using peak signal-to-noise ratio

Radiological Physics and Technology, 2016
A new method was developed for quantifying the accuracy limits of image registration devices and the distortion of anatomical structures in verification images without image registration. A correlation was found between peak signal-to-noise ratio (PSNR) and the amount of parallel movement (1-10 mm at 1-mm intervals) of a rectangular parallelepiped ...
Yoshinori, Tanabe, Takayuki, Ishida
openaire   +2 more sources

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