upsampling

См. также в других словарях:

• Upsampling — is the process of increasing the sampling rate of a signal. For instance, upsampling raster images such as photographs means increasing the resolution of the image.The upsampling factor (commonly denoted by L ) is usually an integer or a rational …   Wikipedia

• Upsampling — Der Begriff Upsampling oder Abtastratenerhöhung beschreibt im Rahmen der digitalen Signalverarbeitung die Umsetzung eines Digitalsignals mit einer niedrigen Abtastrate auf ein Digitalsignal mit einer höheren Abtastrate, wobei die… …   Deutsch Wikipedia

• Multi-rate digital signal processing — Multi rate signal processing studies digital signal processing systems which include sample rate conversion. Multirate signal processing techniques are necessary for systems with different input and output sample rates, but may also be used to… …   Wikipedia

• Chroma subsampling — is the practice of encoding images by implementing less resolution for chroma information than for luma information, taking advantage of the human visual system s lower acuity for color differences than for luminance.[1] It is used in many video… …   Wikipedia

• Downsampling — In signal processing, downsampling (or subsampling ) is the process of reducing the sampling rate of a signal. This is usually done to reduce the data rate or the size of the data. The downsampling factor (commonly denoted by M) is usually an… …   Wikipedia

• Oversampling — In signal processing, oversampling is the process of sampling a signal with a sampling frequency significantly higher than twice the bandwidth or highest frequency of the signal being sampled. Oversampling helps avoid aliasing, improves… …   Wikipedia

• Downsampling — Der Begriff Heruntertaktung bzw. Downsampling (engl.) bezeichnet die Reduktion der Stützstellen einer Zeitreihe oder anderer Anordnungen diskreter Werte. Bis auf Sonderfälle ist das Downsampling dadurch mit Informationsverlust verbunden (im… …   Deutsch Wikipedia

• Передискретизация — Иллюстрация эффекта наложения спектров (алиасинга) при уменьшении разрешения (децимации) растрового изображения. Сверху изображение, уменьшенное без фильтрации. Снизу изображение, уменьшенное с применением фильтра нижних частот. Передискретизация …   Википедия

• Stationäre Wavelet-Transformation — der Lena unter Verwendung des Haar Wavelets Die stationäre Wavelet Transformation (SWT)[1] ist ein Wavelet Transformationsalgorithmus, der die fehlende Verschiebungsinvarianz der diskreten Wavelet Transformation (DWT) be …   Deutsch Wikipedia

• Digital signal processing — (DSP) is concerned with the representation of discrete time signals by a sequence of numbers or symbols and the processing of these signals. Digital signal processing and analog signal processing are subfields of signal processing. DSP includes… …   Wikipedia

• Discrete Fourier transform — Fourier transforms Continuous Fourier transform Fourier series Discrete Fourier transform Discrete time Fourier transform Related transforms In mathematics, the discrete Fourier transform (DFT) is a specific kind of discrete transform, used in… …   Wikipedia