Everything about Upsampling
Digital signal resampling method
In digital signal processing, upsampling, expansion, and interpolation are terms associated with the process of resampling in a multi-rate digital signal processing system. Upsampling can be synonymous with expansion, or it can describe an entire process of expansion and filtering (interpolation). When upsampling is performed on a sequence of samples of a signal or other continuous function, it produces an approximation of the sequence that would have been obtained by sampling the signal at a higher rate. For example, if compact disc audio at 44,100 samples/second is upsampled by a factor of 5/4, the resulting sample rate is 55,125. Wikipedia →
🧭 Start here: a 6-step reading path
- Read the overview: UpsamplingA 5-minute orientation
- Skim a recent paper: Meta-PU: An Arbitrary-Scale Upsampling Network for Point CloudInfluential work since 2022
- Read the landmark paper: Joint bilateral upsamplingCited 846 times
- Go sideways: Downsampling (signal processing)A closely related topic
- Go sideways: Filter bankA closely related topic
📖 Definitions
Verb present participle and gerund of upsample
Noun An instance of something being upsampled.
🏆 Landmark papers (most cited)
Joint bilateral upsampling
Image upsampling via imposed edge statistics
Fast image/video upsampling
Non-local MRI upsampling
PUFA-GAN: A Frequency-Aware Generative Adversarial Network for 3D Point Cloud Upsampling
AUNet: attention-guided dense-upsampling networks for breast mass segmentation in whole mammograms
Bilateral guided upsampling
High-Quality Depth Map Upsampling and Completion for RGB-D Cameras
🆕 Influential since 2022
Meta-PU: An Arbitrary-Scale Upsampling Network for Point Cloud
SPU-Net: Self-Supervised Point Cloud Upsampling by Coarse-to-Fine Reconstruction With Self-Projection Optimization
Real-time stereo matching with high accuracy via Spatial Attention-Guided Upsampling
Efficient Light Field Angular Super-Resolution With Sub-Aperture Feature Learning and Macro-Pixel Upsampling
PU-Dense: Sparse Tensor-Based Point Cloud Geometry Upsampling
📚 Books worth reading
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🔗 Related topics
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- Sample-rate conversion Sample-rate conversion, sampling-frequency conversion or resampling is the process of changing the sampling rate of a discrete signal to obtain a new discrete…
- Multirate filter bank and multidimensional directional filter banks This article provides a short survey of the concepts, principles and applications of Multirate filter banks and Multidimensional Directional filter banks…
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- Undersampling In signal processing, undersampling or bandpass sampling is a technique where one samples a bandpass-filtered signal at a sample rate below its Nyquist…