of signal processing systems, especially filters. The mathematical limits for noise removal are set by information theory. Signal processing noise can...

Signal-to-noise ratio (SNR or S/N) is a measure used in science and engineering that compares the level of a desired signal to the level of background...

In signal processing theory, Gaussian noise, named after Carl Friedrich Gauss, is a kind of signal noise that has a probability density function (pdf)...

Quantization, in mathematics and digital signal processing, is the process of mapping input values from a large set (often a continuous set) to output...

component of noise in signal processing. In communication systems, noise is an error or undesired random disturbance of a useful information signal in a communication...

the noise in the resulting image. Audio signal processing – for electrical signals representing sound, such as speech or music Image processing – in...

In signal processing, white noise is a random signal having equal intensity at different frequencies, giving it a constant power spectral density. The...

Noise reduction is the process of removing noise from a signal. Noise reduction techniques exist for audio and images. Noise reduction algorithms may distort...

Adaptive noise cancelling is an unorthodox signal processing technique that is highly effective in suppressing additive interference or noise corrupting...

Digital signal processing (DSP) is the use of digital processing, such as by computers or more specialized digital signal processors, to perform a wide...

multiple subject fields including signal processing, information theory and biology. In signal processing, a signal is a function that conveys information...

the process of quantization or bit-depth reduction of a signal. Its purpose is to increase the apparent signal-to-noise ratio of the resultant signal. It...

sound. An analog signal is subject to electronic noise and distortion introduced by communication channels, recording and signal processing operations, which...

image processor, also known as an image processing engine, image processing unit (IPU), or image signal processor (ISP), is a type of media processor or...

In signal theory, the noise floor is the measure of the signal created from the sum of all the noise sources and unwanted signals within a measurement...

Typically the term “image noise” is used to refer to noise in 2D images, not 3D images. The original meaning of "noise" was "unwanted signal"; unwanted electrical...

A noise gate or simply gate is an electronic device or software that is used to control the volume of an audio signal. Comparable to a compressor, which...

In signal processing, sampling is the reduction of a continuous-time signal to a discrete-time signal. A common example is the conversion of a sound wave...

of digital signal processing (DSP), a digital signal is a discrete time, quantized amplitude signal. In other words, it is a sampled signal consisting...

Pink noise, 1⁄f noise, fractional noise or fractal noise is a signal or process with a frequency spectrum such that the power spectral density (power per...

Audio signal processing is a subfield of signal processing that is concerned with the electronic manipulation of audio signals. Audio signals are electronic...

(as opposed to the discrete digital signal processing where the signal processing is carried out by a digital process). "Analog" indicates something that...

In signal processing, phase noise is the frequency-domain representation of random fluctuations in the phase of a waveform, corresponding to time-domain...

In signal processing, a filter is a device or process that removes some unwanted components or features from a signal. Filtering is a class of signal processing...

of noise or noise spectrum refers to the power spectrum of a noise signal (a signal produced by a stochastic process). Different colors of noise have...

to remove noise from an image or signal. Such noise reduction is a typical pre-processing step to improve the results of later processing (for example...

information theory, digital communications, radio communications, signal processing, and spectroscopy and is one of the determinants of the capacity of...

Signal averaging is a signal processing technique applied in the time domain, intended to increase the strength of a signal relative to noise that is...

circuits or digital signal processing. Adaptive algorithms are designed to analyze the waveform of the background aural or nonaural noise, then based on the...

Peak signal-to-noise ratio (PSNR) is an engineering term for the ratio between the maximum possible power of a signal and the power of corrupting noise that...