wavelet
Small water ripple
A wavelet is a small wave, especially a ripple on water: Wavelets lapped against the dock.
In mathematics and signal processing, a wavelet is a brief oscillation used to analyze data at different scales—unlike traditional methods that examine entire signals, wavelet analysis captures both frequency and location, making it useful for image compression and detecting patterns in complex signals.
Change completely in form
- orthogonalAt right angles
- basisUnderlying support or principle
- functionPurpose or duty
- decompositionBreakdown into simpler parts
reconstruction · scaling · filter · vanishing · moments · approximation · analysis · coefficient
Rhythmic rise and fall
- eddyCircular counter-current
- swellIncrease in size
- capillarySmallest blood vessel
- crestHighest point or tuft
trough · shimmer · flutter · oscillation · disturbance · surface · pond · puddle
Rate of recurrence
- amplitudeMaximum oscillation displacement
- modulationVarying signals to transmit
- spectrumContinuous range of values
- bandwidthData transmission capacity
localization · analysis · filtering · denoising · detection · coefficient · reconstruction · sampling
transform
Change completely in form
- orthogonalAt right angles
- basisUnderlying support or principle
- functionPurpose or duty
decomposition · reconstruction · scaling · filter · vanishing · moments · approximation · analysis · coefficient · discrete
undulation
Rhythmic rise and fall
crest · trough · shimmer · flutter · oscillation · disturbance · surface · pond · puddle · breeze
frequency
Rate of recurrence
- amplitudeMaximum oscillation displacement
- modulationVarying signals to transmit
- spectrumContinuous range of values
bandwidth · localization · analysis · filtering · denoising · detection · coefficient · reconstruction · sampling · digital
encoding
Converting data to format
- decodingExtracting meaning from symbols
- quantizationConversion to discrete values
- lossySacrificing fidelity for size
lossless · codec · bitrate · artifact · image · video · audio · reduction · efficiency · algorithm
- compressioncompress, compression, compressor, compressing, compact
- small wavesripple, riffle
- signal processingsignal processing, FFT, convolution, sampling, aliasing
- signal analysisfrequency response, spectrogram, poles, zeros, gain
- signal processorscompressor, equalizer, limiter, reverb, delay
waveletdead calm
Complete absence of wind
millpond · stillness · flat water · still water · glassiness
- on the same wavelengthMutually understanding without effort
- different wavelengths
- light wavelengthPhoton oscillation distance
- same wavelength