Results 21 to 30 of about 697,010 (290)
Adaptive Image Thresholding Based on the Peak Signal-to-noise Ratio
Research 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
openaire +1 more source
Robust image transmission performed by SPIHT and turbo-codes [PDF]
Serbian Journal of Electrical Engineering, 2008 This work describes the method for providing robustness to errors from a binary symmetric channel for the SPIHT image compression. The source rate and channel rate are jointly optimized by a stream of fixed-size channel packets. Punctured turbo codes are
Lakhdar Moulay Abdelmounaim +2 more
doaj +1 more source
Remote Sensing, 2022 Conventional energy detection is a robust method that is usually applied to underwater broadband acoustic signal processing for towed arrays. Due to its low resolution, the weak target detection performance of conventional energy detection is severely ...
Anbang Zhao +4 more
doaj +1 more source
Analysis of GFDM as a robust 5G communication technique in noisy environment [PDF]
, 2020 One of the challenges of modulation techniques used in Fifth-Generation (5G) is their robustness in noisy environment. Conventional Orthogonal Frequency Division Multiplexing (OFDM) cannot be considered as a 5G waveform in its original form because of ...
Ayaz, Ferheen, Ayaz, Saqib
core +1 more source
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.
J.-C. Yoo, C.W. Ahn
openaire +1 more source
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 +2 more
doaj +1 more source
Signal-to-noise ratio in diffusion-ordered spectroscopy: how good is good enough? [PDF]
Magnetic Resonance, 2021 Diffusion-ordered NMR spectroscopy (DOSY) constructs multidimensional spectra displaying signal strength as a function of Larmor frequency and of diffusion coefficient from experimental measurements using pulsed field gradient spin or stimulated echoes ...
J. Guest +4 more
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Laser Diode based THz-TDS System with 133 dB peak Signal-to-Noise Ratio
, 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
openaire +1 more source
Frequency-Selective PAPR Reduction for OFDM [PDF]
, 2019 We study the peak-to-average power ratio (PAPR) problem in orthogonal frequency-division multiplexing (OFDM) systems. In conventional clipping and filtering based PAPR reduction techniques, clipping noise is allowed to spread over the whole active ...
Gökceli, Selahattin +4 more
core +3 more sources
Face Image Generation and Enhancement Using Conditional Generative Adversarial Network
IJCCS (Indonesian Journal of Computing and Cybernetics Systems), 2022 The accuracy and speed of a single image super-resolution using a convolutional neural network is often a problem in improving finer texture details when using large enhancement factors.
Ainil Mardiah +2 more
doaj +1 more source