How high-speed Ethernet cameras can address these issues
Emergent’s 10, 25, 50 and 100GigE cameras provide a few options to tightly control the timing synchronization between cameras. Emergent has extensive experience in synchronizing cameras using a variety of methods including PTP, hardware triggering, etc, and have been able to demonstrate microsecond accuracies with minimal effort.
Emergent cameras only use the best sensors from top vendors such as Sony, Gpixel, and AMS and we work hard to squeeze every ounce of performance out of these sensors which leads to improvements in dynamic range which is important to VR/AR/ MR applications in that systems often need to deal with varying lighting conditions.
Wide range of resolution and frame rates
Sony sensors currently range from 0.5MP @ 1595 fps to as high as 31MP @ 35 fps. Sony’s 4th generation of sensors, also known as Sony Pregius S range from 5MP @ 269 fps to 25MP @ 98 fps. These newer sensors combine high resolution and frame rates and are a great fit for VR, AR, and MR applications. Gpixel sensors currently range from 5MP @ 290 fps to 65MP @ 35 fps and are on the rise. AMS has the 50MP @ 30 fps.
The Sony IMX253 (12MP @ 80fps), IMX535 (12MP @ 192 fps), IMX532 (16MP @145 fps), IMX531 (20MP @ 100 fps), and IMX530 (24MP @ 98 fps) are currently the most popular for VR/AR/MR applications.
How 10, 25, 50 and 100GigE compare with other high-speed interfaces
Emergent’s 10, 25, 50 and 100GigE cameras, coupled with Myricom’s MVA or Mellanox’ VMA, equals or out-performs other interfaces in every technical category and its price performance is the best. With VMA or MVA, all the shortcomings associated with 1GigE w.r.t. CPU utilization, latency and jitter are obliterated. Industry acceptance is excellent as well.
Here, the closest competitor is CXP. Low cost commodity SFP+ SFP28, ans QSFP28 transceivers create a virtually limitless link length. In comparison, CXP6 and CXP12 will achieve 72m and 30m respectively but can go further with expensive fiber adapters.
It is important to distinguish between SFP+/SFP28/ QSFP28 transceivers and CXP or CameraLink fiber adapters. Transceivers are low cost commodity product which slots directly in the camera and NIC while the fiber adapters are expensive bulky external pieces of hardware (often the same size as the camera itself or even bigger) produced by very few suppliers and these sit somewhere in-between the camera CXP or CameraLink cable(s) and the fiber link which, interestingly enough, employs the same SFP+ transceivers that Emergent cameras employ directly in the camera. And, naturally, you need one fiber adapter at each end of the link since the grabber will typically have the same interface as the camera.
This is what it often all comes down to and we invite customers to get their complete system quotes from our competitors and absolutely make sure to perform the technical due diligence and then compare all results before committing to any solution. This goes as much for competitors pushing their expensive CXP wares as for competitors supplying 10GigE or other Ethernet based cameras as it is not just about the technology but it is also about the quality of the implementation and support. It is worth noting that most if not all 10GigE competing technology suffers performance issues that limit number of cameras per PC which has a significant impact on cost.
In conclusion, when getting quotes for comparison, make sure at minimum that 10GigE is being compared to either CXP6 x1/x2 or CXP12 x1 and that 25GigE is being compared to either CXP6 x4 or CXP12 x2.
Additionally, one should understand how many camera channels per PCIe slot you are getting in your frame grabber in comparison to our NICs. We offer up to 2x 25GigE port cards which is the equivalent of a CXP6 x8 card or CXP12 x4 assuming that the CXP card has independent camera channel support. Also, it is even more important to understand how many cameras you can operate per PC to avoid surprises during test and integration.
Lastly, understand your cabling options especially cable length restrictions as these can dictate a significantly added cost if CXP fiber converters are needed.