Augmented CAD for Quality assessment

1. © Fraunhofer IGD
AUGMENTED CAD FOR QUALITY ASSESSMENT
M.Sc Thu Huong Luu
Fraunhofer IGD / TU Darmstadt
Fraunhoferstraße 5
64283 Darmstadt
Tel.: +49 (0) 6151 155 – 467
E-Mail: thu.huong.luu@igd.fraunhofer.de
www.igd.fraunhofer.de

2. © Fraunhofer IGD
 Variance analyses with scan data
 Registration of 3D scan to CAD
 Difference measure
VARIANCE ANALYSES
Fraunhofer IGD, Darmstadt
CAD 3D Scan Difference
• Scan to CAD
• CAD to Scan

3. © Fraunhofer IGD
 PMI extraction
 Part-Level PMI Data
 Assembly-Level PMI Data
 Datum
 Dimension
 Note
PMI EXTRACTION
Fraunhofer IGD, Darmstadt

4. © Fraunhofer IGD
 3D distance measurement for quality control
APPLICATION EXAMPLE
Fraunhofer IGD, Darmstadt
CAD
CAD

5. © Fraunhofer IGD
 3D distance measurement for quality control
 PMI extraction + variance analyses
 Measurements based on dimensionality
constraints given in a CAD Model
APPLICATION EXAMPLE
Fraunhofer IGD, Darmstadt
CAD

6. © Fraunhofer IGD
 3D distance measurement for quality control
 PMI extraction + variance analyses
 Measurements based on dimensionality
constraints given in a CAD Model
 Automatically determine compatible
structures from scan to measure in-between
APPLICATION EXAMPLE
Fraunhofer IGD, Darmstadt

7. © Fraunhofer IGD
APPLICATION EXAMPLE
Fraunhofer IGD, Darmstadt
Darmstadt, 16.02.2018 – Thu
Huong Luu
Import Annotations &
Geometry (Primitives)
Registration
CAD
Model
Scan
Filter &
Down
Sampling
Segmentation
(Primitives)
MeasurementMapping
Sampling
 3D distance measurement for quality
control
 PMI extraction + variance analyses
 Measurements based on dimensionality
constraints given in a CAD Model
 Automatically determine compatible
structures from scan to measure in-
between

8. © Fraunhofer IGD
APPLICATION EXAMPLE
Fraunhofer IGD, Darmstadt
 3D distance measurement for quality control
 PMI extraction + variance analyses
 Measurements based on dimensionality
constraints given in a CAD Model
 Automatically determine compatible
structures from scan to measure in-between
 Advantages
 Automatic instead of manual control
 No programming of measurement system

9. © Fraunhofer IGD
M.Sc Thu Huong Luu
Fraunhofer IGD / TU Darmstadt
Fraunhoferstraße 5
64283 Darmstadt
Tel.: +49 (0) 6151 155 – 467
E-Mail: thu.huong.luu@igd.fraunhofer.de
www.igd.fraunhofer.de