Direct answer
A vision system should be specified from the defect, presentation and decision required—not from camera resolution alone. Define what a good and bad pack looks like, control the product and lighting, challenge the full variation and prove that every failed pack is rejected and recorded.
Practical objective: a validated inspection that detects the agreed defect range without creating an unacceptable false-reject rate.
Questions and phrases customers use
This guide also answers searches such as:
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Information to collect first
Use one controlled set of figures and representative production conditions. Record the source and date of each assumption so quotations and improvement options can be compared on the same basis.
- List each defect with representative good, marginal and failed samples
- Define the inspection location and the feature orientation
- Record product colour, reflection, transparency and normal dimensional variation
- Set line speed, spacing, vibration and available inspection time
- Specify detection, decision, reject confirmation and fail-safe behaviour
- Agree image retention, access, recipe control and data requirements
How to make the decision
Work from the required finished result back through the process. Keep compliance, product quality, sustained output and total ownership cost visible together.
- Use controlled lighting and presentation before increasing algorithm complexity
- Separate presence, position, print quality, surface defect and measurement tasks
- Define false-accept and false-reject tolerances
- Challenge the system with known defects at normal speed
- Verify the reject bin, reject confirmation and full-bin or air-failure response
Common mistakes to avoid
- Using perfect laboratory images that do not represent production
- Inspecting a feature after it can no longer be rejected safely
- Setting one threshold that fails across colour or supplier variation
- Assuming a camera decision proves the pack was physically removed
Customer decision table
| Inspection need | Typical system question |
|---|---|
| Label presence and position | Can every panel and orientation be seen under controlled lighting? |
| Cap or closure | Can height, presence, colour and tamper feature be distinguished? |
| Printed code | Is the requirement presence, OCR/OCV, grading or database match? |
| Seal or pack defect | Is the defect visible, repeatable and presented consistently? |
Questions customers also ask
Can one camera inspect every side?
What is a false reject?
Is reject confirmation necessary?
How many defect samples are needed?
Evidence to retain
Keep the controlled requirement, product and packaging samples, measurements, trial results, supplier scope and acceptance records used for the decision.
Download the planning template
Use the CSV worksheet to allocate evidence, owners, actions and dates before requesting quotations or approving a change.
Related guides and calculators
Need help applying this to your line?
Send the product, pack, current method, measured problem and required result. The more specific the evidence, the more useful the machinery review can be.