Manual
Table Of Contents
- Software Installation on page 10
- Overview
- Network Deployment
- Ready to Use
- Software Installation
- Accessing the Network Camera
- Using 3GPP-compatible Mobile Devices
- Using RTSP Players
- Using VIVOTEK Recording Software
- Main Page
- Client Settings
- Configuration
- System > General settings
- System > Homepage layout
- System > Logs
- System > Parameters
- System > Maintenance
- Media > Image
- Media > Video
- Media > Audio
- Network > General settings
- Network > Streaming protocols
- Network > QoS (Quality of Service)
- Network > SNMP (Simple Network Management Protocol)
- Security > User Account
- Security > HTTPS (Hypertext Transfer Protocol over SSL)
- Security > Access List
- Security > IEEE 802.1x
- PTZ > PTZ settings
- Event > Event settings
- Applications > Motion detection
- Applications > DI and DO
- Applications > Tampering detection
- Applications > Audio detection
- Applications > Package management - a.k.a., VADP (VIVOTEK Application Development Platform)
- Recording > Recording settings
- Local storage > SD card management
- Local storage > Content management
- Appendix
VIVOTEK
User's Manual - 75
Take the following into consideration when using this feature:
1. Operational requirement: Identify a human or a human face.
2. Why human face? There are less variances in the size of a face than that for limbs and body. Human
face is normally 16cm wide.
3. The recommended pixel number is, 40 to 80 for facial identication; or 100 pixels per foot (30.48cm)
3-1. One example is a human face in retail.
3-2. Another example is a doorway:
If the requirement is 100 pixels per foot, to detect a person passing through a door, the camera
will have to cover 700 pixels throughout the length of a doorway. This application aims to identify a
subject passing through a specic area.
4. Other factors may include that a person will move in your area of interest: The face may not always
face the camera.
5. Details can be affected by weak lighting or the view angle. Therefore, higher the pixels, higher the
chance you can identify the subject.
6. The pixel calculator visual tool looks like the following.
Pixel Calculator
Pixel Calculator
1
2
With the visual tool, you can estimate a coverage area, the distance from the subject, and place a ruler
or an object of known size. You can then draw a calculator frame to cover the subject of your interest.
The calculated numbers will be listed at the lower screen. You will then understand if the current
setting fullls your requests for the number of pixels.