CCTV Systems: FPS, Storage, CPU, & Slow Motion Relationships

CCTV Systems: FPS, Storage, CPU, & Slow Motion Relationships

1. FPS (Frames Per Second)
– Definition: Number of frames captured per second.
– Impact: Higher FPS = smoother live footage; Lower FPS = choppier video.

2. Storage
– Direct Link to FPS:
– Doubling FPS ≈ doubles storage needs (if resolution/compression is constant).
– Example: 30 FPS uses 2x storage of 15 FPS.
– Trade-off: Lower FPS reduces storage costs but sacrifices motion clarity.

3. Slow Motion
– Requirement: High FPS (e.g., 30+ FPS) for smooth playback when slowed down.
– Low FPS Issue: Slowed footage appears jerky (fewer frames to stretch).

4. CPU Usage
– Processing Load: Higher FPS increases CPU demand (more frames to encode/compress).
– Risk: Overloaded CPUs cause dropped frames/lag, especially with multiple cameras.

5. Interconnected Effects
– Increasing FPS:
– ✅ Better slow motion, smoother live view.
– ❌ Higher storage + CPU load.
– Decreasing FPS:
– ✅ Saves storage, reduces CPU strain.
– ❌ Poor slow motion, choppy playback.

6. Optimization Tips
– Prioritize high FPS in critical areas (e.g., entrances).
– Adjust FPS based on hardware limits (CPU/storage).
– Right Sizing for CCTV Server and Storage
– Follow Vendor recommendation for FPS per camera , Server and Storage Specs

Summary: FPS is a lever affecting storage, CPU, and slow motion. Balance based on security needs and system capacity.

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Source: LinkedIn

Credits: Mr. Shafei Gad