Choose global when
Moving parts, robots in view, or tight gauging under takt.
Knowledge · Fundamentals
Triggering, timing and shutter choice without guesswork.
A sharp algorithm fails if the light fires late, the encoder is out of sync, or rolling shutter warps the part.
Core choice
Global vs rolling shutter
Global shutter exposes all pixels at once, usually safer with motion. Rolling shutter scans rows: cheaper/compact, but prone to smear on fast parts or vibration.
Rolling can work when
Static or slow scene, modest geometry needs, and strobe freezes motion.
Include lighting
Strobe + trigger latency decide whether shutter type even shows up.
Timing
Trigger path you must specify
Document who is master (PLC, encoder, camera), what latency budget you have, and how reject timing is guaranteed.
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01
Trigger source
Hardware I/O, encoder, soft trigger or frame grabber, each has jitter.
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02
Exposure vs strobe
Exposure short enough for blur; strobe synced and bright enough for contrast.
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03
Debounce & filtering
Mechanical sensors and conveyor vibration create false triggers without filtering.
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04
Validate at takt
Test at production speed, lab tempo lies about blur and misses.
Timing problem on the line?
Describe takt, trigger signal and whether you see motion blur, we propose a test path.