Download Axis Network video Specifications

TABLE OF CONTENTS
Table of contents
Network video: overview, benefits and applications 7
1.1
1.2
1.3
1.3.1
1.3.2
1.3.3
1.3.4
1.3.5
1.3.6
1.3.7
1.3.8
Overview of a network video system
Benefits
Applications
Retail
Transportation
Education
Industrial
City surveillance
Government
Healthcare
Banking and finance
7
8
12
12
12
12
13
13
13
13
14
Network cameras 15
Camera elements
27
2.1
2.2
2.2.1
2.2.2
2.2.3
2.3
2.4
2.5
3.1
3.2
3.2.1
3.2.2
3.2.3
3.2.4
3.2.5
3.2.6
3.3
3.3.1
3.3.2
3.3.3
3.4
3.4.1
3.4.2
3.5
3.5.1
3.5.2
3.5.3
3.6
What is a network camera?
Types of network cameras
Fixed network cameras
Fixed dome network cameras
PTZ cameras and PTZ dome cameras
Day and night network cameras
Megapixel network cameras Guidelines for selecting a network camera
Light sensitivity
Lens elements
Field of view
Matching lens and sensor
Lens mount standards
F-number and exposure
Manual or automatic iris
Depth of field
Image sensors
CCD technology
CMOS technology
Megapixel sensors
Image scanning techniques
Interlaced scanning
Progressive scanning
Image processing
Backlight compensation
Exposure zones
Wide dynamic range
Installing a network camera
15
16
17
17
18
21
23
24
27
28
28
30
31
31
32
33
34
34
34
35
35
35
36
37
37
37
37
38
3