Presence and OCR verification on an unwrapped pipe-print region
Text presence on a pipe does not prove readability or agreement with the expected product. Curvature, changing print location and reflections can leave portions of characters outside the usable view.
Proposed output: visible print region, recognised text and presence/readability verification. Recipe comparison is an added design option; no readability claim is made for text on a hidden surface.
- 01 Presentation
- 02 Trigger and reference
- 03 Image / profile
- 04 Decision
- 05 Evidence and PLC
Select the pipe and print recipe
- Sample record
- —
- Print-region and reading validity
- —
- Acquisition progress
- —
Scenes are illustrative simulations; they are not customer references or performance guarantees.
Solution approach
Choose an ROI using pipe diameter and visible print position, then rectify the curved print region in validated views before OCR. Keep presence, readability and expected-text agreement as separate results. Recipe matching is an added option; validate diameter range, print format and optical visibility with samples.
Process steps
- 01
Presentation
Select the pipe and print recipe
- 02
Trigger and reference
Locate the visible print region
- 03
Image / profile
Rectify using calibrated curvature
- 04
Decision
Separate presence and OCR results
- 05
Evidence and PLC
Record positioned text evidence
Related applications
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