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 is calculated by this formula:
Memory requirement = picture size x duration of recording x images per second
Example calculation of CIF resolution (PAL):
Picture | Picture | Duration of |
| Approx. memory space | |
quality | size | recording | 5 images/s | 10 images/s | 25 images/s |
|
|
| |||
|
|
|
|
|
|
Basic | 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 |
|
|
|
| ||
Example calculation of 2CIF resolution (PAL): |
|
|
| ||
|
|
|
|
| |
Picture | Picture | Duration of |
| Approx. memory space | |
quality | size | recording | 5 images/s | 10 images/s | 25 images/s |
|
|
| |||
|
|
|
|
|
|
Basic | 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 |
|
|
|
|
|
|
17 |