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Complexity reduction in designing globally optimal scalar quantiser

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4 Author(s)
Haiyun Yang ; Sch. of Electr. & Electron. Eng., Nanyang Technol. Univ., Singapore ; Chang-Qian Chen ; Soo-Ngee Koh ; P. Sivaprakasapillai

A method to reduce the computational complexity in the design of a dynamic-programming-based globally optimal quantiser is proposed. With the new method, the computational complexity involved in designing a q-level quantiser with N training data samples is reduced from O(0.5N 3) to O((7+q)N2) arithmetic and comparison operations. The effect of this reduction is to make the training of large data sets a practical possibility

Published in:

Electronics Letters  (Volume:31 ,  Issue: 5 )