Information Technology Reference
In-Depth Information
transform and quantization. This method includes the information (LAST), which
indicates that the coefficient to be coded is the last non-zero coefficient in a block,
into the set of (zero run, non-zero value). Then, the set of (LAST, zero run, non-
zero value) is coded.
D
C
B
C
B
D
or
or
X
Y
A
Y
A
X
Macroblock
Intra DC prediction
Macroblock
Intra AC prediction
Fig. 31
Intra Frame DC/AC Prediction
24
8
2
1
0
0
0
0
6
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
1
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
3D-VLC (
Last
, Run, Level)
䋨
0
,0,24䋩,䋨
0
,0,8䋩,䋨
0
,0,6䋩,䋨
0
,2,2䋩,䋨
0
,0,1䋩,䋨
1
,2,1䋩
Fig. 32
Three dimensional VLC
