Half-tunnel illumination and OCR recipes on curved injectors
Text regions on a metal injector body do not provide consistent contrast because of curvature and direct reflections. The recognised text must be evaluated together with the format and expected content of the product recipe.
Proposed output: image record with recognised text, recipe match and rejection reason. Optical and line acceptance require sample validation; code-quality grading is outside this concept.
- 01 Presentation
- 02 Trigger and reference
- 03 Image / profile
- 04 Decision
- 05 Evidence and PLC
Select the injector ROI recipe
- Sample record
- —
- Text validation status
- —
- Acquisition progress
- —
Scenes are illustrative simulations; they are not customer references or performance guarantees.
Solution approach
Control reflections using half-tunnel diffuse illumination and process text regions through separate ROIs and recipes. Combine OCR, format and expected-text checks on the existing PC. Unreadable, incomplete, low-confidence or timed-out results never produce automatic acceptance.
Process steps
- 01
Presentation
Select the injector ROI recipe
- 02
Trigger and reference
Acquire under diffuse illumination
- 03
Image / profile
Read characters with OCR
- 04
Decision
Check format and expected text
- 05
Evidence and PLC
Record the text and decision
Related applications
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