Administration, continued

Determining the memory requirement of a recording

The amount of memory recorded video sequences will take up depends on the following factors:

Picture quality

number of images per second

duration

The memory requirement for 1 camera is calculated by this formula:

Memory requirement = picture size x duration of recording x images per second

Calculation example: CIF resolution (PAL):

Picture

Picture

Duration of

 

Approx. memory space

quality

size

recording

5 images/s

10 images/s

25 images/s

 

 

 

 

 

 

 

 

 

Low

2.4 kB

24 hours

1.04 GB

2.07 GB

5.18 GB

 

 

 

 

 

 

Standard

4.8 kB

24 hours

2.07 GB

4.15 GB

10.37 GB

 

 

 

 

 

 

High

9.6 kB

24 hours

4.15 GB

8.29 GB

20.74 GB

 

 

 

 

 

 

Very High

14.4 kB

24 hours

6.22 GB

12.44 GB

31.10 GB

 

 

 

 

2Calculation example: 2CIF resolution (PAL):

 

 

 

 

 

 

 

 

Picture

Picture

Duration of

 

Approx. memory space

quality

size

recording

5 images/s

10 images/s

25 images/s

 

 

 

 

 

 

 

 

 

Low

4.8 kB

24 hours

2.07 GB

4.15 GB

10.37 GB

Standard

9.6 kB

24 hours

4.15 GB

8.29 GB

20.74 GB

High

19.2 kB

24 hours

8.29 GB

16.59 GB

41.47 GB

 

 

 

 

 

 

Very High

28.8 kB

24 hours

12.44 GB

24.88 GB

62.20 GB

 

 

 

 

 

 

DLR3-16N/XX

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Epson DLR3-16N/660CDV, DLR3-16N/410CDV manual Determining the memory requirement of a recording