Results 241 to 250 of about 697,010 (290)

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
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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
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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
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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
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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, Tamás L. Pap, János Inczédy   +2 more
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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, David S. Hardin, Eugene B. Bradley   +2 more
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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
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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, null Li Jianhua, null Lu Yi, null Fu Yao, null Jiang Qinzhong   +4 more
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JPEG Image Compression Using Multiple Core Strategy in FPGA achieving High Peak Signal to Noise Ratios

2021 International Congress of Advanced Technology and Engineering (ICOTEN), 2021
Field Programmable Gate Arrays are increasingly becoming an integral part of modern embedded system designs because of their ease of implementation, flexibility and unparalleled processing power capability. Taking into consideration these capabilities, a compression algorithm has been implemented on an FPGA (Xilinx Spartan 3A 3400 Kit) while the ...
Umar Anjum, Ahmed Hussain, Channa Babar Ali, Umer Afzal, Israr Hussain, Abdulfattah Noorwali, Syed Aziz Shah   +6 more
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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, Christian R. Helmrich, Sebastian Bosse, Heiko Schwarz, Detlev Marpe, Thomas Wiegand   +5 more
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