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ISO/IEC 10918-1 : 1993(E)
TISO1440-93/d082
EXTEND(V,T)
V = 2
t
T 1
V < V
?
t
Yes
No
V = (SLL 1 T) + 1
V = V + V
t
t
Return V
Figure F.12 Extending the sign bit of a decoded value in V
Figure F.12 [D82] = 11 cm = 430 %
F.2.2.2
Decoding procedure for AC coefficients
The decoding procedure for AC coefficients is shown in Figures F.13 and F.14.
CCITT Rec. T.81 (1992 E)
105
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