Results 1 to 10 of about 258,326 (296)

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

Scientific 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, Tobias Kubiczek, Kevin Kolpatzeck, Jan C. Balzer   +3 more
doaj   +7 more sources

Anti-PT-Symmetric Optical Gyroscope at the Transmission Peak Degeneracy With Enhanced Signal-to-Noise Ratio [PDF]

Journal of Lightwave Technology
Non-Hermitian sensors have been widely studied for the enhanced response of their eigenvalues in the proximity of exceptional points. However, it has been shown that noise is enhanced in the same way as sensitivity, thus vanishing the advantages of the ...
Martino DE CARLO, Francesco De Leonardis, Vittorio M N Passaro   +2 more
exaly   +3 more sources

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

Jisuanji 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

Comparing the trustworthiness of signal‐to‐noise ratio and peak signal‐to‐noise ratio in processing noisy partial discharge signals

IET Science, Measurement and Technology, 2013
In partial discharge (PD) analyses, there is a need to compare the noise level of measured signals in different conditions and/or after applying certain signal processing algorithms (e.g. noise reduction). Moreover, in PD analyses through modelling approaches, whenever noisy signals should be constructed by adding noise with a desired level to the ...
Abbas Babaee, S Mohammad Shahrtash
exaly   +2 more sources

Is there a relationship between peak‐signal‐to‐noise ratio and structural similarity index measure?

IET Image Processing, 2013
In this study, the authors analyse two well‐known image quality metrics, peak‐signal‐to‐noise ratio (PSNR) as well as structural similarity index measure (SSIM), and the authors derive an analytical relationship between them which works for some kinds of common image degradations such as Gaussian blur, additive Gaussian noise, Jpeg and Jpeg2000 ...
Djemel Ziou
exaly   +2 more sources

Image matching using peak signal-to-noise ratio-based occlusion detection

IET Image Processing, 2012
A new identification mechanism is introduced for the purpose of locating objects partially occluded under low peak signal-to-noise ratio (PSNR) environment in two-dimensional grey scale image.The proposed occlusion detection is based on the utilisation of the fact that the higher the PSNR, the less the impairment of the image.
Chang Wook Ahn
exaly   +2 more sources

The relationship between acceptable noise level and electrophysiologic auditory brainstem and cortical signal to noise ratios

Audiology Research, 2014
The following objectives of the study were formulated: i) to investigate differences in measured signal to noise ratios while recording speech-evoked auditory brainstem response (cABR) and cortical late latency response (LLR) in low and high acceptable ...
Hemanth N. Shetty, Sankalapa Mahadev, Devamma Veeresh   +2 more
doaj   +2 more sources

Performance analysis of peak signal-to-noise ratio and multipath source routing using different denoising method

Bulletin of Electrical Engineering and Informatics, 2022
The problem of denoising iris pictures for iris identification systems will be discussed, as well as a novel solution based on wavelet and median filters. Different salt and pepper extraction algorithms, as well as Gaussian and speckle noises, were used.
Kannadhasan Suriyan, Nagarajan Ramaingam, Sudarmani Rajagopal, Jeevitha Sakkarai, Balakumar Asokan, Manjunathan Alagarsamy   +5 more
openaire   +5 more sources

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

Applied 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   +2 more sources

Image Steganography Using LSB and Hybrid Encryption Algorithms

Applied Sciences, 2023
In today’s era of widespread web technology and cloud computing, ensuring data security has become a crucial concern across various industries. Instances of data breaches and vulnerabilities in cloud storage have emphasized the need for robust data ...
May Alanzy, Razan Alomrani, Bashayer Alqarni, Saad Almutairi   +3 more
doaj   +1 more source