BM-141GE / BB-141GE
35
Formula to calculate Data Transfer Rate
J=
{
90+62+(E+18)*(G-2)}*8*D/1000000
Where,
G=ROUNDUP{A*B*C/8/(E-36)}+2
The following table shows Bits per Pixel (C) which depends on the pixel format.
Pixel format
Bit
MONO8
8
MONO10
16
MONO10Packed
12
MONO12
16
MONO12Packed
12
BAYRG8
8
BAYGB8
8
BAYRG10
16
BAYGB10
16
BAYRG12
16
BAYGB12
16
Calculation example: BM-141GE Pixel type Mono8
Item
Unit
Symbol
Setting
Image Width
[pixels]
A
1392
Image Height
[pixels]
B
1040
Bits per Pixel
[bits]
C
8
Frame Rate
[fps]
D
30.12
Packet Size
[Bytes]
E
1428
Number of Packets (including Data Leader & Trailer
Packet)
[packets]
G
Transfer Data Rate
[Mbit/s]
J
G=ROUNDUP {(1392 x 1040 x 8 / 8 / (1428-36)) + 2 = 1040 + 2 = 1042
J={90+62+(1428+18)x(1042-2)} x 8 x 30.12 / 1000000 = 362
Mbit/s
8.3.5 Simplified calculation (Approximate value)
A simple way to calculate the approximate data transfer rate is the following.
Transfer data = Image width (pixel) x Image Height (pixel) x depth per pixel(depending
on the pixel format) x frame rate / 1,000,000 (convert to mega bit)
In the case of the BM-141GE with the full image and MONO8 pixel format;
The data transfer rate = 1392 x 1040 x 8 x 30.12 / 1000000 = 349 Mbit/s