PixArt Imaging Inc.
PAS005B
CMOS Image Sensor IC
[i,j]′= ( [i,j] + [i+1,j] ) / 2,
while in CIF-sub-sampling, the sub-sampled pixel date are
[i,j]′= ( [i,j] + [i,j+2] + [i+2,j] + [i+2,j+2] ) / 4,
M FA :M onoM ode
10 11 12 13 14 15
10
12
14
0
1
2
3
4
5
6
7
8
9
0
2
4
6
8
0
1
0
1
0
1
0
1
2
2
2
2
3
3
3
3
4
4
4
4
rf=0,cf=0
rf=0,cf=1
5
5
5
5
6
6
6
6
7
7
7
7
8
8
8
8
9
9
9
9
10
11
12
13
14
15
10
11
12
13
14
15
10
11
12
13
14
15
10
11
12
13
14
15
10 11 12 13 14 15
10
10
12
12
14
14
0
0
1
2
3
4
4
5
6
7
8
8
9
0
0
2
2
4
4
6
6
8
8
12
0
4
0
4
0
2
0
2
rf=2,cf=2
vga_ave_Ena=1
row_ave_Ena=1
4
4
rf=1,cf=1
VGA
6
6
CIF
8
8
8
8
10
12
14
10
12
14
12
12
0
4
8
12
0
2
4
6
8
10
12
14
Fig 4.3.4
4.3.5 Output timing of sub-sampling
4.3.5.1 Sub-sampling VGA(640X480) from (1288 X 968 ) windowing:
(with 4 column and 2 row for color interpolation)
cf[1:0] = 1, rf[1:0]=1, sub-sampling rate (1/2,1/2),
wcp[10:0]=0, wcw_in[10:0]=1287, column pixels 644=(1287+1)/2,
wrp[10:0]=0,wrd[10:0]=963, row pixel 484=(963+1)/2,
cm =1, single_path = 1, row_ave= 1, CDS_ext2_in =1.
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