Fourier-related Transforms

Discrete Cosine Transform

Discrete Cosine Transform (DCT) is an orthogonal transformation method that decomposes an image to its spatial frequency spectrum. It expresses a finite sequence of data points in terms of a sum of cosine functions oscillating at different frequencies. It is used a lot in compression tasks, e..g image compression where for example high-frequency components can be discarded. It is a type of Fourier-related Transform, similar to discrete fourier transforms (DFTs), but only using real numbers.

Image Credit: Wikipedia

Papers


Paper Code Results Date Stars

Tasks


Task Papers Share
Image Compression 14 6.93%
Quantization 12 5.94%
General Classification 10 4.95%
Super-Resolution 8 3.96%
Image Classification 6 2.97%
Face Recognition 6 2.97%
BIG-bench Machine Learning 6 2.97%
Decoder 4 1.98%
Data Compression 4 1.98%

Components


Component Type
🤖 No Components Found You can add them if they exist; e.g. Mask R-CNN uses RoIAlign

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