TECH FOCUS: EMBEDDED VISION
Embedded gets the edge
A roundup of some of the latest embedded vision technology
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n some respects, the industrial vision market has provided embedded
vision products for many years - from smart cameras to self-contained vision devices with onboard image processing. A new wave of products now follows the development of computer processors powerful enough to run vision algorithms, board- level system-on-modules from NXP, for example, or GPUs and FPGAs. Embedded computer
hardware is small, inexpensive, powerful and energy- efficient. Some chips are being designed specifically to work with neural networks.
Attaching a sensor module brings image processing closer to the sensor; this is known as ‘edge processing’, as opposed to processing in the cloud or sending the feed from the camera to a separate computer. Embedded computing
opens the door to many more uses of vision technology. Even in factories where machine vision is already established and successful, there are areas where embedded vision can play a role. Te downside to developing
products on embedded boards is that integration complexity and cost is higher in a relatively new market. Te
26 IMAGING AND MACHINE VISION EUROPE APRIL/MAY 2022
‘Embedded computing opens the door to many more uses of vision technology’
Khronos Group, together with the European Machine Vision Association, are working on an open API standard for controlling embedded cameras across mobile, industrial, XR, automotive and scientific markets. Tis new standard aims to help companies building embedded vision devices.
Commercial products Among the camera vendors offering embedded vision products, Framos’ sensor module ecosystem now supports Maxim’s Gigabit Multimedia Serial Link, GMSL2, protocol. Cameras up to 8-megapixel resolution at 30fps can be connected over 15m of cable. GMSL2 has a data rate of
6Gb/s with low cabling costs and low power consumption. Low latency can be realised at distances of up to 15m. Framos has integrated with Connect Tech’s GMSL camera platform. Te expansion board allows up to four Framos cameras to be connected to the Jetson Xavier
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