Low-Complexity Scaling Methodsfor DCT-II Approximations

Volume: 69, Pages: 4557 - 4566
Published: Jan 1, 2021
Abstract
This paper introduces a collection of scaling methods for generating 2 N-point DCT-II approximations based on N-point low-complexity transformations. Such scaling is based on the Hou recursive matrix factorization of the exact 2 N-point DCT-II matrix. Encompassing the widely employed Jridi-Alfalou-Meher scaling method, the proposed techniques are shown to produce DCT-II approximations that outperform the transforms resulting from the JAM scaling...
Paper Details
Title
Low-Complexity Scaling Methodsfor DCT-II Approximations
Published Date
Jan 1, 2021
Volume
69
Pages
4557 - 4566
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