Results 241 to 250 of about 697,010 (291)
Some of the next articles are maybe not open access.

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.
Jari Korhonen, Junyong You
openaire   +1 more source

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
J. Moreno, B. Jaime, C. Fernandez
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

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

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

Noise robust speech rate estimation using signal-to-noise ratio dependent sub-band selection and peak detection strategy

The Journal of the Acoustical Society of America, 2019
Speech (syllable) rate estimation typically involves computing a feature contour based on sub-band energies having strong local maxima/peaks at syllable nuclei, which are detected with the help of voicing decisions (VDs). While such a two-stage scheme works well in clean conditions, the estimated speech rate becomes less accurate in noisy condition ...
Yarra, Chiranjeevi   +3 more
openaire   +3 more sources

Parametric studies of matched filters to enhance the signal-to-noise ratios of LC–MS–MS peaks

Analytica Chimica Acta, 2006
Chromatographic parameters of reference signals employed in matched filter methods have been studied using numerical experiments to improve the signal-to-noise (S/N) ratios of small liquid chromatography (LC) peaks obtained with electrospray tandem mass spectrometers (MS-MS).
Shau-Chun, Wang   +2 more
openaire   +2 more sources

An adaptive detection system for Raman spectral peaks at low signal‐to‐noise ratios

Journal of Raman Spectroscopy, 1984
AbstractRaman spectroscopic techniques have made it possible to study adsorbed species on single metal crystals at submonolayer coverages. However, as the amount of coverage decreases, the signal‐to‐noise ratio (SNR) deteriorates. This paper describes an adaptive peak detector (APD), a data analysis system capable of detecting peaks at low SNRs.
Stephen A. Dyer   +2 more
openaire   +1 more source

Free Energy Adjusted Peak Signal to Noise Ratio (FEA-PSNR) for Image Quality Assessment

Sensing and Imaging, 2017
Peak signal to noise ratio (PSNR), the de facto universal image quality metric has been widely criticized as having poor correlation with human subjective quality ratings. In this paper, it will be illustrated that the low performance of PSNR as an image quality metric is partially due to its inability of differentiating image contents.
Ning Liu, Guangtao Zhai
openaire   +1 more source

Image quality evaluation based on image weighted separating block peak signal to noise ratio

International Conference on Neural Networks and Signal Processing, 2003. Proceedings of the 2003, 2003
Traditional objective image quality evaluation measures, such as the MSE or the PSNR, only represent the total difference between the original images and reconstructed images. However in some case, such as there are few large error pixels and many small error pixels in an image, they have not a consistent a result with subjective measure.
null Wang Yuanji   +4 more
openaire   +1 more source

Home - About - Disclaimer - Privacy