STV-974/552S-R01 STMicroelectronics, STV-974/552S-R01 Datasheet - Page 19
STV-974/552S-R01
Manufacturer Part Number
STV-974/552S-R01
Description
KIT DEMO W/VS6552
Manufacturer
STMicroelectronics
Datasheets
1.STV0974ETR.pdf
(69 pages)
2.STV-974552S-R01.pdf
(2 pages)
3.STV-974552S-R01.pdf
(26 pages)
Specifications of STV-974/552S-R01
Sensor Type
CMOS Imaging, Color (RGB)
Sensing Range
VGA
Interface
I²C
Sensitivity
30 fps
Embedded
No
Utilized Ic / Part
STV0974E, VS6552
Lead Free Status / RoHS Status
Contains lead / RoHS non-compliant
Other names
497-3891
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Functional description
The Huffman table used are described in ISO DIS 10918-1 Annex A - Section K.3.
Figure 11: Encoding of AC coefficient
In the above example, the first AC coefficient of Block Y1 is 0, as good as the second one. The
zeros are not Huffman encoded, but the runlength counts them. When the first non-zero value is
reached (Coefficient 4 with value 77), the Huffman code for the pair (number of preceding zeros,
value) = (2,77) if Huffman encoded.
The code that is generated is Code = Huffman (2,77).
DC
12
1
2
0
Block Y1 data values
0
3
4
77
AC
DCT coefficient numbers in zigzag order
63
1
64
0
DC
1
4
2
5
Block Y2 data values
22
3
10
4
AC
63
0
64
0
STV0974
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