Understanding CCTV Frame Rate
Frame rate affects motion quality, storage needs, and bandwidth. Learn how to choose the right FPS for your surveillance needs.
Table of Contents
What is Frame Rate?
Frame rate (FPS) is the number of still images ("frames") captured per second. Higher FPS produces smoother motion but requires more bandwidth and storage. Lower FPS saves resources but may miss fast movements.
To understand FPS, think of a movie: 24 FPS is standard cinema, 30 FPS is typical video, 60 FPS is slow-motion capable. In CCTV, frame rate is a tradeoff between motion quality and resource consumption.
Common FPS Options
1-5 FPS
Use case: Static scenes with minimal motion. Parking lot at night, warehouse aisles. Motion appears jerky. Minimal bandwidth/storage.
10-15 FPS
Use case: General surveillance. Retail floors, office hallways. Motion is acceptable quality. Good bandwidth/storage balance.
25-30 FPS
Use case: High-motion areas. Entrances, cash registers, parking lot entrances. Smooth motion capture. Higher bandwidth/storage.
60 FPS
Use case: Specialized needs. Slow-motion review, sports facilities. Very smooth. Significant bandwidth/storage requirements.
Impact on Bandwidth
Frame rate directly affects bandwidth needed to stream or transmit video. Doubling FPS roughly doubles bandwidth requirements.
Bandwidth Example (1080p H.264):
- 10 FPS: ~5 Mbps
- 15 FPS: ~7.5 Mbps
- 25 FPS: ~10 Mbps
- 30 FPS: ~12 Mbps
For remote viewing, bandwidth matters. A 10-camera system at 30 FPS requires 120 Mbps upload, while 15 FPS needs only 75 Mbps.
Impact on Storage
Higher frame rates directly increase storage requirements. FPS has a linear relationship with storage needs.
Storage Example (1080p per camera per day):
- 10 FPS: ~40 GB/day
- 15 FPS: ~60 GB/day
- 30 FPS: ~120 GB/day
For 10 cameras at 30 FPS for 30 days: 120 GB x 10 cameras x 30 days = 36 TB
Choosing the Right FPS
Low Motion Areas (5-10 FPS)
Parking lots, stairwells, hallways, low-traffic zones. No fast-moving objects. Saves significantly on bandwidth and storage.
Medium Motion Areas (15-20 FPS)
Retail floors, office spaces, lobbies. Regular traffic but not high-speed movement. Good balance.
High Motion Areas (25-30 FPS)
Entrances, cash registers, sports facilities. Important to capture quick movements. Plan for storage accordingly.