Family of order-4 four-level orthogonal transforms
- 13 October 1983
- journal article
- Published by Institution of Engineering and Technology (IET) in Electronics Letters
- Vol. 19 (21) , 869-871
- https://doi.org/10.1049/el:19830592
Abstract
A family of order-4 four-level orthogonal transforms is derived using a novel concept called dyadic symmetry. The well known order-4 discrete cosine, sine, Haar and slant transforms are members of this family. Comparison among transforms within this family shows that all these well known transforms can be exchanged with other members of the family giving either improved performance or reduced computational requirements.Keywords
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