DCT approximations based on Chen’s factorization

In this paper, two 8-point multiplication-free DCT approximations based on the Chen’s factorization are proposed and their fast algorithms are also derived. Both transformations are assessed in terms of computational cost, error energy, and coding gain. Experiments with a JPEG-like image compression...

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Bibliographic Details
Published in:	Signal processing. Image communication Vol. 58; pp. 14 - 23
Main Authors:	Tablada, C.J., da Silveira, T.L.T., Cintra, R.J., Bayer, F.M.
Format:	Journal Article
Language:	English
Published:	Amsterdam Elsevier B.V 01-10-2017 Elsevier BV
Subjects:	Algorithms Approximate DCT Approximation Chen’s factorization Coding Complexity Digital imaging Experiments Factorization Fast algorithms Image and video compression Image compression JPEG encoders-decoders Low-complexity transforms Transformations Video compression Image and video compression Low-complexity transforms Chen’s factorization Approximate DCT Fast algorithms
Online Access:	Get full text
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