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The choice of camera interface plays a crucial role in machine vision system performance. The most common three interfaces are GigE, USB3 Vision and CoaXPress:
GigE Vision – Long Reach, Network Friendly
Introduced in 2006, GigE Vision is based on standard IP and Ethernet technology – making it cost-effective, widely interoperable and easy to integrate. It allows for high-speed image transfer over long distances using affordable Ethernet cables and is ideal for multi-camera systems or installations spanning large areas.
USB3 Vision – Simple, Plug-and-Play
Since its debut in 2013, USB3 Vision has gained popularity for its simplicity. Most PCs already support USB 3.0, so it works effortlessly in single-camera setups – like standalone inspections or microscopes – where a cable length of 1-5 meters is sufficient.
CoaXPress – Maximum Bandwidth, High Performance
If you need ultra-high throughput, particularly for high-resolution or high-frame-rate imaging, CoaXPress (CXP) offers unmatched performance. It’s a popular choice in demanding fields like defense, aerospace and advanced surveillance.
Key Camera Interface Trade-offs
| Interface | Advantages | Best for... |
|---|---|---|
| GigE Vision | Cost-efficient, long cable runs, vendor diversity | Multi-camera systems, remote monitoring |
| USB3 Vision | Easy setup, plug-and-play, widespread compatibility | Simple, single-camera systems |
| CoaXPress | High bandwidth, low latency, built for demanding applications | High-speed inspection, precision engineering |
No single interface fits all. Your final choice should hinge on factors such as required bandwidth, cable length, cost constraints and latency needs.
Selecting the right camera interface is more than just picking a cable – it's about optimizing performance while meeting application requirements and budget. We're here to help you make the right choice.