Title :
Algorithm for generating new orthonormal transforms
Author :
Huang, S.J. ; Koh, S.N. ; Tang, H.K.
Author_Institution :
Sch. of Electr. & Electron. Eng., Nanyang Technol. Inst., Singapore
Abstract :
The traditional method for generating new transforms is based on a set of special orthogonal functions. By using the principle of dyadic symmetry and by maximising a particular transform performance index like transform efficiency used in image coding, an infinite number of transforms can be obtained. A number of new, order-8 transforms with transform efficiency better than that of the discrete cosine transform (DCT) has been obtained through the proposed procedure.
Keywords :
computerised picture processing; encoding; transforms; computerised picture processing; dyadic symmetry; image coding; order-8 transforms; orthonormal transforms; performance index; transform efficiency;
Journal_Title :
Electronics Letters
DOI :
10.1049/el:19900956
