3D Metrology with Laser Triangulation

Transcription

1 Seite: 1 Light Section Sensors and Cameras

2 Seite: 3 Agenda 3D Laser Triangulation Overview Customer requirements classification How do we meet these requirements? Products Performance Integration Application examples Summary

3 Seite: 4 Overview Many approaches for 3D metrology Stereo vision, structured light, depth from focus, time of flight Laser + High accuracy and speed + Scalable measurement volume + No texture on object needed + Well understood algorithms + Robust and flexible to integrate - Linear motion needed Laser is suitable for many applications

4 Seite: 5 Customer Requirements Classification Entry Focus on specific applications Moderate precision and speed Easy to use

5 Seite: 6 Customer Requirements Classification Entry Focus on specific applications Moderate precision and speed Easy to use Midrange High resolution and speed Broad range of applications High flexibility and performance

6 Seite: 7 Customer Requirements Classification Entry Focus on specific applications Moderate precision and speed Easy to use Midrange High resolution and speed Broad range of applications High flexibility and performance High End Extreme precision and speed Real-time analysis and control, customization Individual solutions for specific requirements

7 Seite: 8 How do we meet these requirements? Entry

8 Slide: 9 Entry: PosCon Sensor Family Smart profile sensors Focus on specific applications Preconfigured measuring functions Fast installation without a reflector High precision High ambient light immunity No PC software required

9 Slide: 10 PosCon 3D Your edge specialist Measurement independent of color or surface finish Measurement of extremely dark objects Flexible mounting up to +/- 30

10 Slide: 11 PosCon HM Clever height measurement Reliable measuring without exact positioning of the objects to be measured High measuring accuracy up to 2 μm even on very shiny objects Easy solution for critical check & sort applications

11 Slide: 12 PosCon CM Measurement of round objects Suitable for outer diameters up to 130 mm No reflector or PC software required Measured values displayed in millimeter thanks to factory calibration

12 Seite: 13 How do we meet these requirements? Midrange

13 Seite: 14 Midrange: LX 3D Cameras Cameras with integrated processing for high accuracy and performance Maximum flexibility with PC integration 2 and 12 MP Models fps fps Integrated Processing Center of Gravity algorithm Frame aggregation Meta data (e.g. encoder status) Interfaces GigE Vision, Digital I/O, RS422 M58, C-mount with Scheimpflug option

14 Seite: 15 LX 3D Cameras System Integration User can freely decide on 3D setup and software Broad range of lenses and laser to meet requirements GigE Vision SDK like Baumer GAPI for PC integration Examples for MVTec HALCON included Camera provides height map Calibration can be achieved by using third party software

15 Seite: 16 LX 3D Cameras Performance LXG-20M.3D LXG-120M.3D fps, x 2691 fps fps, x 1326 fps fps LXG-20M.3D LXG-120M.3D #lines

16 Seite: 17 LX 3D Cameras Exhibition Demo Setup Processed height map

17 Seite: 18 LX 3D Cameras Applications and Benefits Applications Tire geometry, soldering paste, pin control, railway tracks, automated picking, counting, food slicing Industries Automotive, electronics, infrastructure, food, wood Benefits High accuracy and measurement speed Full control of system setup Data reduction within camera provides more flexibility No CPU resources for laser processing

18 Seite: 19 How do we meet these requirements? High End

19 Seite: 20 High End: Algorithm Customization Laser can be very application specific Different algorithm tunings for food or metal Some customers prefer to have this knowledge themselves Our approach: enable customers to adjust algorithm Graphical design tool VisualApplets for FPGA programming Standard applet available in source Fast, customized image processing

20 Seite: 21 High End: Algorithm Customization Examples for customization Improved robustness (noise filtering, HDR computation) 3D data validation based on laser line statistics Combination with 2D mono/color processing Real-time analysis and decision making VisualApplets enables flexible and powerful image pre-processing 2 and 12 MP models available

21 Seite: 22 High End: Extreme Performance (Outlook) Higher accuracy may improve quality inspection results Very fast acquisition required for applications like railway tracks Inspection at 200 km/ h requires 56 khz for 1 mm resolution in y Our approach: VQXG-120M.3D 3D processing at full speed (>4 GB/s, >100 Mio. 3D values/s) 12 MP, fps, ~5x v. LXG-120M.3D Dynamic laser tracking and ROI adjustment 56 khz can be reached with , Data volume of 450 MB/s (2D/3D/meta data) 10 GigE interface

22 Seite: 23 Summary Broad portfolio for 3D applications Entry PosCon sensor family Midrange LX 3D cameras High End LX VisualApplets and QX cameras Easy to use, flexible and powerful visit hall 3, booth 3521