Transform picture coding

Eigenvectors and functions of the discrete Fourier transform

“…Another application for the fractional DFT is in transform coding [18], [19] for data compression purposes. Transform coding amounts to quantization of the transformed signal or data before storage or transmission.…”

Adaptive Beamforming Algorithm Using a Pre-filtering System

“…2. In this context, it is worth pointing out that in image processing, especially in image compressing techniques, one can find an abundance of techniques that can reconstruct the original image with acceptable performance, without using all transformation components, but rather using only the lower component coefficients of the image transform matrix [4]. We will exploit this fact with some modifications and employ it in the antenna array processing to obtain a new beamforming technique.…”

Interframe Adaptive Data Compression Techniques for Images.

“…A number of data compression (also called coding) schemes have been developed for single image frames, [5,22,29,31,36,38,51,53,58,75,77,83,87].…”