signal-to-quantization-noise
Application of Mean-Square Approximation for Piecewise Linear Optimal Compander Design for Gaussian Source and Gaussian Mixture Model
... each quantization segment from the support ...that signal-to-quantization- noise ratio (SQNR) of so obtained piecewise linear optimal compander overreaches SQNR of the uniform quantizer, ...
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Codebook Generation for Vector Quantization using Interpolations to Compress Gray Scale Images
... In the decoding stage, while reconstructing the image from the compressed image, each index in index map is replaced with the corresponding codevector. The difference between the input image and the reconstructed image ...
6
Image Noise Reduction Using Linear and Nonlinear Filtering Techniques
... Noise to be any degradation in the image signal caused by external disturbance ...of noise on the image; hence we ex- amine some of the standard noise for eliminating or reducing noise ...
6
Evaluation of Image Quality Assessment Metrics: Color Quantization Noise
... its signal processing counter- part, the peak signal to noise ratio ...weighted signal to noise ratio (WSNR) [19] simulates the human visual system properties by filtering both the ...
8
A Dynamic Filter Architecture for Low Power Consumption
... the feedback mechanism. Previous studies in [6] show that sorting both the data samples and filter coefficients before the convolution operation has a desirable energy-quality characteristic of FIR filter. However, the ...
7
Voice Recognition Robotic Car
... 3 1.3 1.4 Project Objectives To apply Vector Quantization technique in voice recognition system To apply filter technique to reduce the noise and increase signal to noise ratio To [r] ...
24
Micromachined vibratory gyroscopes controlled by a high order band pass sigma delta modulator
... electronic noise is shaped by the inverse transfer function of the sensing ...electronic noise shaping in the signal band for a bandpass provided that the quality of the sensing element is ...
11
Robust information hiding in low-resolution videos with quantization index modulation in DCT-CS domain
... With Quantization Index Modulation (QIM) and Discrete Cosine Transform based feature extraction and quantization, the compressive sensing (CS) techniques have effectively obtained a sparse representation of ...
17
Time-Mode Signal Quantization for Use in Sigma-Delta Modulators
... data quantization procedure from the amplitude to the time domain, can be a promising alternative well adapt with the technology ...time-based noise- shaping ADCs, so-called as time-based sigma-delta ...
9
Review of Sigma-Delta ADC
... for quantization-noise ( n q ) and as a low-pass filter (LPF) for the input ...the signal is over-sampled, the quantization noise power in the Nyquist bandwidth spreads over the wider ...
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Realization of Ternary Sigma-Delta Modulated Arithmetic Processing Modules
... the quantization noise corresponding to the truncation introduced by the ternary ...error signal as p(k). This signal will only be nonzero when x(k) = y(k) = ± ...
7
A ROBUST IMAGE WATERMARKING SCHEME USING SINGULAR VALUE DECOMPOSITION FOR COPYRIGHT PROTECTION
... In this work, a watermarking scheme is proposed which is robust, reasonably good capacity (32x32 logo is embedded in 512x51e. image) and blind in nature. The proposed method uses SVD domain and Dither quantization ...
12
Denoising of EEG signals using Discrete Wavelet Transform Based Scalar Quantization
... the signal to noise ratio of EEG ...that quantization based compression schemes are used which includes complexity in the ...Scalar Quantization (DWTSQ) is used for improving the Signal ...
8
lec-9 (Transmission Impairments)
... If the strength of incoming signal is P and the noise in the channel is N then the signal-to-noise ratio, S/N, is given by the formula;. S/N = Power/Noise and in decibels;[r] ...
20
Efficiency of Jpeg Image Compression Using Quantization Noise Analysis
... A.M.Raid, W.M.Khedr, M. A. El-dosuky and Wesam Ahmed (2014 ) [1] Due to the increasing requirements for transmission of images in computer, mobile environments, the research in the field of image compression has ...
7
Microphone handling noise : measurements of perceptual threshold and effects on audio quality
... summary signal statistics for the handling noises used in the perceptual tests and Table 2 presents data for an additional five commonly used ...The signal statistics were calculated using the MIR toolbox ...
26
Execution and Performance Evaluation of Different Noise Cancellation Techniques
... Adaptive) noise cancellation (ANC) is a technique that effectively attenuates low frequencies unwanted noise where as passive methods are either ineffective or tends to be very expensive or ...unwanted ...
6
WIRELESS BIO-RADAR SENSOR FOR HEARTBEAT AND RESPIRATION DETECTION
... phase noise power. The residual phase noise includes the phase noise by the heart signal itself, the stationary human body reflection, the antenna leakage signal, and the mixer leakage ...
20
ECG Signal Denoising by Using Least-Mean-Square Based Adaptive Filter
... ECG signal exceptionally better than the- other LMS algorithm based adaptive filter [12], in terms ofSNR, PRD and ...of noise involved withreal ECG signal in this ...adaptive noise ...
7
A Review on Extended Golay Encoder and Decoder Design
... received signal. To achieve this we have to set threshold value of signal to noise ratio and to achieve the coding gain, this the signal-to- noise (SNR) of the received signal ...
5