3 DPIXA 3 D stereo camera Stereo line

3 D-PIXA 3 D stereo camera • Stereo line scan camera • 3 D data and color image simultaneously

PIXA family basic features Features • CCD: tri-linear color line scan sensor • 10 µm pixel size • Resolutions: • 7300 @ 22 k. Hz • 4096 @ 36 k. Hz • 2048 @ 66 k. Hz • 1024 @ 100 k. Hz • 3 x 170 MByte/s (=510 MByte/s) • Camera. Link Medium

Overview Stereoscopic approach • Calibrated stereo line scan camera • Height in real time with GPU Line-scan camera Height + image Features • RGB images and height map • Modular system concept for custom specific solutions • Quality and performance based on all. PIXA Surface of object Linear movement

Customer benefit 1/2 Highest resolutions (max 7 k per line) • Large formats • High lateral resolutions • Height resolution up to 10 x better than lateral resolution Line-scan approach Ideal for fast moving objects Ideal for 100% inspection

Benefit 2/2 High speeds (up to 60. 000 lines/s) Highly configurable • Via lens system • Resolution from 10 µm to 700 µm • lens defines the resolution Output • Color image (rectified) • Height map (16 Bit image) • Point cloud

Functional principle Stereo correspondence • Find corresponding points in both images using correlation (texture based) • Result from correlation is disparity map • Height is calculated from disparity map using calibration data • Correlation is performed on GPU

Stereo approach: Principle Two images from the same scene • Object surface P Both cameras takes the same scene two different viewing angles Z • One point on the surface P is projected in both images (Pl und Pr) • Calculation of height based on triangulation b c Pl Left Camera • Standard stereo approach Parallel cameras and sensors Right camera r Z: distance p: Parallax b: Basis of stereo system c: Image distance P p = xl - xr

Stereo approach: Principle Parallaxe p • Object surface P different viewing angles results in parallax Z Z: Distance b: Basis of stereo system b c: Image distance p: Parallax p = xl - xr 9 Pl xl c xr Pr Parallax p

10 Stereo approach: Correspondence Corresponding points • Stereo image acquisition: two images • Finding corresponding points Pattern matching • Left image: take ROI around Pl as pattern • Search for best match of pattern in the right image • Position with best match is resulting correspondence

Stereo approach: Correspondence right image Left image Correlation 1 1 Position of the ROI

Samples Embossing on package Soldering on a normal electronic board Wood board with relief structure

Samples: Euro coin 3 D visualized with 10 µm optical resolution 1 µm height resolution

Samples: Euro coin Height map in pseudo color 10 µm optical resolution 1 µm height resolution

Samples: banknote in-taglio print 10 µm optical resolution 1 µm height resolution

System options 1/2 3 D-PIXA-C 15 Resolution: 15 µm Height resolution: 3 µm Scan width: 40 mm Height range: 1 mm Max. speed: 0. 3 m/s 3 D-PIXA-C 30 Resolution: Height resolution: Scan width: Height range: Max. speed: 30 µm 6 µm 105 mm 3 mm 0. 6 m/s

System options 2/2 3 D-PIXA dual • Dual line-scan camera • Flexible in base width • Support for 10 – 700 µm • Max. 60 k. Hz • Usable pixels: max. 7000 • Available for project solutions

System options 2/2 Example configurations 3 D-PIXA-D 70 Resolution: 70 µm Height resolution: 20 µm Scan width: 500 mm Height range: 30 mm Max. speed: 1. 5 m/s 3 D-PIXA-D 680 Resolution: 680 µm Height resolution: 200 µm Scan width: 2000 mm Height range: 700 mm Max. speed: 25 m/s

System configuration HW Imaging PC Camera. Link PC Bus 3 D calculation (API) origin Color image Height image Application software Image analysis

System configuration Calculation of 3 D height information • Depends on: • Height range • Number of graphic boards • Line length (4 K for this sample calculation) 4 k systems 2 k systems max. 60 k. Hz

21 3 D-PIXA vs. Laser scanner: Illumination Laser approach 3 D-PIXA - standard light source no specles

22 3 D-PIXA vs. Laser scanner: Illumination 3 D-PIXA Dark-field Bright-field Cloudy-day (dome) Co-axial

3 D-PIXA vs. Laser scanner: Illumination speed 23 range High speed only for • • Low resolution (1/2 pixel) Small range (< 100 rows) 3 D-PIXA • always 21 k. Hz (up to 60 k. Hz) Sensor rows => range

Why choose 3 D PIXA Unique performance ü 3 D and 2 D color simultaneously ü Highest resolutions, widths and speeds ü Ideal for 100% inspection ü Ideal for fast moving objects ü Flexible as line-scan cameras ü Registration of texture and 3 D height ü Powered by Chromasens all. PIXA technology