90
CHAPTER 12. GAUGING STATION
Figure 12.3: Component engineering drawing with specified measurements.
Calibrate and correct the image
The overall gauging process requires a relatively high resolution image that has
been grid calibrated to minimize camera lens and perspective distortion; see
for details. The calibration image must be stored on a USB
flash drive to be accessible to the vision script running on NI myRIO. In addi-
tion, applying the correction to the image itself will improve the measurement
accuracy and automatic detection of straight edges.
illustrates this technique.
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Содержание NI myRIO
Страница 1: ...Ed Doering NI myRIO Vision Essentials Guide...
Страница 2: ......
Страница 11: ...Part I Machine Vision Fundamentals...
Страница 12: ......
Страница 31: ...Part II Introductory Machine Vision Projects...
Страница 32: ......
Страница 38: ...32 CHAPTER 4 CAMERA SETUP...
Страница 44: ...38 CHAPTER 5 STEREO VISION...
Страница 61: ...Part III Machine Vision Application Projects...
Страница 62: ......
Страница 72: ...66 CHAPTER 8 COIN COUNTER...
Страница 85: ...CHAPTER 10 KEYED OPTICAL LOCK 79 Figure 10 3 Typical expected results for the Geometric Matching step...
Страница 86: ...80 CHAPTER 10 KEYED OPTICAL LOCK...
Страница 92: ...86 CHAPTER 11 DMM TEST STAND...
Страница 134: ...128 CHAPTER 17 MARBLE SORTER...
Страница 135: ...Part IV Appendices...
Страница 136: ......
Страница 143: ...B MXPandMSPConnectorDiagrams Figure B 1 MXP myRIO eXpansion Port connector diagram...
Страница 144: ...138 APPENDIX B MXP AND MSP CONNECTOR DIAGRAMS Figure B 2 MSP miniSystem Port connector diagram...
Страница 148: ...142 APPENDIX D BUILD A STAND ALONE APPLICATION...
Страница 149: ...E MarbleSorterConstructionDetails To be continued...
Страница 150: ...144 APPENDIX E MARBLE SORTER CONSTRUCTION DETAILS...