Machine Vision isn't new technology, but many factories still hesitate — afraid of overspending or buying something that won't fit their line. This article covers what to check before you start.
1. Is the problem you're solving clearly defined?
Don't start from 'we want vision'. Start from 'which defect causes the most customer returns?' or 'which station is the QC team struggling with most?'
2. Throughput and tact time
Line speed dictates camera spec (line scan vs area scan), shutter, and trigger logic. A quick smartphone test gives you a rough idea before specifying hardware.
3. Lighting is 70% of the problem
Bad lighting makes even the best AI model unreliable — invest in industrial lighting and a good diffuser before splurging on an expensive camera.
4. Rule-based or AI?
- Rule-based — fast, cheap, works when defects can be defined precisely (holes, scratches, dimensions)
- AI / Deep Learning — for defects that resist rule-based definition (smudges, surface texture, off-spec colour)
- Most lines use both — vision filtering first, AI as a second-pass check