upsampling
Enlarging digital data
Upsampling is the process of increasing the resolution or sample rate of digital data.
In audio, it means converting a recording to a higher sample rate than the original.
In image processing, it means enlarging an image by adding pixels, often through interpolation or AI enhancement: The software upsampled the old photo to 4K resolution.
The opposite is downsampling.
Estimating between known values
- bit-depthBits per sample measurement
- ditheringProlonged indecisive hesitation
- aliasingSignal misidentification from undersampling
- reconstructionRebuilding after destruction
enhancement · lossless · codec · transcoding · quantization · filtering · bandwidth · wav
Estimating between known values
- enlargementIncrease in size
- scalingClimbing or resizing
- bilinearLinear in both arguments
- pixelsDisplay's smallest points
antialiasing · artifacts · sharpening · detail · clarity · enhancement · resolution · texture
Relating to chronology
- smoothingReducing irregularities systematically
- 4KHigh-resolution video standard
- scalingClimbing or resizing
- artifactsHuman-made historical objects
enhancement · clarity · sharpness · rendering · real-time · streaming · compression · quality
Produced artificially, not natural
- bootstrappingSelf-starting without external input
- augmentationAct of adding more
- replicationAct of duplicating precisely
- weightingAssigning relative importance values
classification · dataset · duplication · interpolation · generative
interpolation
Estimating between known values
- bit-depthBits per sample measurement
- ditheringProlonged indecisive hesitation
- aliasingSignal misidentification from undersampling
reconstruction · enhancement · lossless · codec · transcoding · quantization · filtering · bandwidth · wav · audiophile
interpolation
Estimating between known values
- enlargementIncrease in size
- scalingClimbing or resizing
- bilinearLinear in both arguments
pixels · antialiasing · artifacts · sharpening · detail · clarity · enhancement · resolution · texture · upscale
temporal
Relating to chronology
- smoothingReducing irregularities systematically
- 4KHigh-resolution video standard
- scalingClimbing or resizing
artifacts · enhancement · clarity · sharpness · rendering · real-time · streaming · compression · quality · upscale
synthetic
Produced artificially, not natural
- bootstrappingSelf-starting without external input
- augmentationAct of adding more
- replicationAct of duplicating precisely
weighting · classification · dataset · duplication · interpolation · generative
upsamplingdownsampling
Lowering sampling rate
decimation · subsampling · downscaling · compression · thinning
sample, sampling, resampling, subsample, resample, resampled, oversampling, downsampling, upsample