LNS Arithmetic for MPEG Encoding Using a Fast DCT. Jie Ruan and Mark G. Arnold. LNS (Logarithmic Number System). Represents a number by a sign bit and an exponent to a certain base (b). S. Exponent (n-1 bits). F (Precision). Properties of LNS. Large dynamic range
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Jie Ruan and Mark G. Arnold
Exponent (n-1 bits)
2 Dimensional 8x8 DCT
Comparison Hardware cost for Chen’s algorithm, at F=4