Results 1 to 10 of about 697,022 (202)

Laser diode based THz-TDS system with 133 dB peak signal-to-noise ratio at 100 GHz [PDF]

open access: goldScientific Reports, 2023
Terahertz time-domain spectroscopy (THz-TDS) has emerged as a powerful and versatile tool in various scientific fields. These include—among others—imaging, material characterization, and layer thickness measurements.
Vladyslav Cherniak   +3 more
doaj   +9 more sources

Generative Adversarial Network-Based Distortion Reduction Adapted to Peak Signal-to-Noise Ratio Parameters in VVC [PDF]

open access: goldApplied Sciences
In order to address the issues of image quality degradation and distortion that arise in the context of video transmission coding and decoding, a method based on an enhanced version of CycleGAN is put forth. The lightweight attention module is integrated
Weihao Deng, Zhenglong Yang
doaj   +3 more sources

Edge Detection Operators: Peak Signal to Noise Ratio Based Comparison [PDF]

open access: bronzeInternational Journal of Image, Graphics and Signal Processing, 2014
Edge detection is the vital task in digital image processing. It makes the image segmentation and pattern recognition more comfort. It also helps for object detection. There are many edge detectors available for pre-processing in computer vision. But, Canny, Sobel, Laplacian of Gaussian (LoG), Robert's and Prewitt are most applied algorithms.
D. Poobathy, R. Manicka Chezian
openalex   +2 more sources

Laser Diode based THz-TDS System with 133 dB peak Signal-to-Noise Ratio [PDF]

open access: green, 2023
Abstract Terahertz time-domain spectroscopy (THz-TDS) has emerged as a powerful and versatile tool in various scientific fields. These include – among others – imaging, material characterization, and layer thickness measurements. While THz-TDS has achieved significant success in research environments, the high cost and bulky nature of most ...
Vladyslav Cherniak   +3 more
openalex   +2 more sources

Blind Estimation of Peak Signal to Noise Ratio for JPEG Highly Compressed Images Based on Correlation [PDF]

open access: greenJisuanji gongcheng, 2017
Quantization noise is one of thedominant distortions of JPEG image compression,so its amplitude usually needs to be estimated for image quality assessment.Meanwhile,Peak Signal to Noise Ratio(PSNR) estimation method cannot get the original image in the ...
LU Minjun,WANG Ci
doaj   +2 more sources

Uniform Speech-Peak Clipping in a Uniform Signal-to-Noise Spectrum Ratio [PDF]

open access: bronzeThe Journal of the Acoustical Society of America, 1949
A graphical function W(r, c) has been determined experimentally, in which W is word articulation, r is the relative level of unclipped speech and the noise, and c is the amount of uniform, symmetrical, speech-peak clipping. Pre-emphasis of the speech signal gave an approximately uniform speech spectrum prior to clipping. Uniform, random noise was mixed
Daniel W. Martin
openalex   +2 more sources

Compressive Sampling Orthogonal Matching Pursuit Algorithm Based on Peak Signal to Noise Ratio

open access: bronzeInternational Journal of Future Generation Communication and Networking, 2016
In order to improve signal reconstruction accuracy, a CoSaMP (Compressive Sampling Matching Pursuit) algorithm based on peak signal to noise ratio is proposed in allusion to the disadvantages of CoSaMP algorithm. Firstly, the discrete cosine wave transform is improved to initially estimate the signal sparseness; secondly, the optimum iteration number ...
Dan Hu
openalex   +2 more sources

Adaptive Image Thresholding Based on the Peak Signal-to-noise Ratio [PDF]

open access: hybridResearch Journal of Applied Sciences, Engineering and Technology, 2014
L'objectif de cette recherche est d'améliorer un algorithme de seuillage basé sur le rapport de bruit du signal de crête. Le seuillage est une étape critique dans la reconnaissance des formes et a un effet significatif sur les étapes ultérieures des applications d'imagerie.
Farshid PirahanSiah   +2 more
openalex   +2 more sources

Towards No-Reference of Peak Signal to Noise Ratio [PDF]

open access: hybridInternational Journal of Advanced Computer Science and Applications, 2013
El objetivo de este trabajo es definir un estimador de calidad de imagen perceptual no referenciado aplicando los conceptos perceptuales del Modelo de Inducción Cromática. El enfoque consiste en comparar la imagen recibida, presumiblemente degradada, con las versiones perceptuales (diferentes distancias) de esta imagen degradada por medio de un Modelo ...
Jesús Jaime Moreno Escobar   +2 more
openalex   +2 more sources

Algoritma Penyisipan Frame untuk Peningkatan Akurasi Metode Aligned Peak Signal-to-Noise Ratio dalam Pengukuran Kualitas Video

open access: greenJurnal Komputer Terapan, 2015
Pengukuran kualitas video secara objektif mampu mengatasi kekurangan penilaian kualitas secara subjektif dalam hal waktu dan tenaga yang dibutuhkan. Pengukuran secara objektif ini menggunakan sinyal video, noise, dan parameter encoder untuk memperkirakan
Yoanda Alim Syahbana   +2 more
doaj   +2 more sources

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