S-Space College of Engineering/Engineering Practice School (공과대학/대학원) Dept. of Electrical and Computer Engineering (전기·정보공학부) Journal Papers (저널논문_전기·정보공학부)
Index mapping for prime factor algorithm of discrete cosine transform
- Lee, Byeong Gi
- Issue Date
- IEEE Signal Processing Society
- IEEE TRANSACTIONS ON ACOUSTICS. SPEECH, AND SIGNAL PROCESSING. VOL. 37, NO. 2, FEBRUARY 1989
- This paper provides a direct derivation of the prime-factor-decomposed computation algorithm of an N-point discrete cosine transform for the number N decomposable into two relative prime numbers. It also presents input and output index mappings in the form of tables-namely, ri-, it-, nc-, nK-, and k-tables. The index mapping tables are useful for practical use of the prime-factor-decomposed computation of arbitrarily sized discrete cosine transforms.
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