Applies to: DesignPro
Summary
DesignPro provides nine scene types based on the amount of activity in a camera's field of view. This article describes each scene type and provides considerations for selecting the appropriate scene.
Scene Types
The following scenes are listed from highest to lowest activity:
| Type | Description |
| Crowded Square | Use for the highest level of scene activity, such as large crowds. |
| Highway | Use for constant, multi-lane vehicle activity. For quieter roads, consider Parking Area. |
| Shopping Mall | Use for constant people activity. For quieter areas, consider retail. |
| Station Platform | Use when crowd levels vary but the area can become crowded. For quieter area, consider Parking Area or Perimeter. |
| Parking Area | Use for building exteriors. |
| Office | Use when there is slightly more activity than Retail. |
| Retail | Use for relatively low indoor activity with occasional bursts of moving objects, such as people or vehicles. This is the most common scene type. |
| Perimeter | Use for outdoor scenes with negligible activity. |
| Emergency Exit | Use for fairly static indoor scenes. |
Impact of Scene Lighting on Bitrate
Each scene type includes a default lighting schedule which includes periods of Day time, Night time, and Illuminated. The schedule can be modified to meet your needs.
For example, below are the default lighting schedules for Station platform (outdoor) and Retail (indoor).
Each type of lighting has a marginal weighting impact on the bitrate. The influence is much less than the level of scene activity, but with larger camera counts and longer retention periods it can make a significant difference. Consequently, selecting the correct lighting schedule will result in the most accurate bitrate calculations.
- Day time - object details are clearly visible (require the most bandwidth)
- Night time - some of the detail is lost with noise reduction (require the least bandwidth)
- Illuminated - an average of the Night time and Day time values
For settings that are not affected by day/night lighting conditions, apply this setting for all 24 hours.
Scene Selection Considerations
The bandwidth and storage calculation model includes many variables.
Underestimating scene activity can result in insufficient storage to achieve the required retention period. This may require adding storage or reducing the camera bitrate, which can increase pixilation and reduce image resolution or detail. Consider adding a storage buffer to account for scene activity variables or future camera expansion and avoid adjusting retention, image size, CODECs, framerate, recording schedules, motion-based recording, or WiseStream compression.
Overestimating scene activity can result in excess storage requirement, but provides a higher-quality image and additional storage capacity for system expansion.
To improve the accuracy of DesignPro estimates, compare similar previous deployments, including retention times and storage used by similar camera models.