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Presented By. Santosh and Ravi. SENSORS ON 3D DIGITIZATION. Santosh and Ravi. B.TECH 8 TH SEM Electronics and Telecommunication sanstrikes_4u@sify.com rky_ece059@rediffmail.com. 1.Introduction 2.OPTICAL GEOMETERY & PHOTO SENSOR 3.LASER SENSORS FOR 3D IMAGING

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  1. Presented By Santosh and Ravi

  2. SENSORS ON 3D DIGITIZATION

  3. Santosh and Ravi B.TECH 8TH SEM Electronics and Telecommunication sanstrikes_4u@sify.com rky_ece059@rediffmail.com

  4. 1.Introduction 2.OPTICAL GEOMETERY & PHOTO SENSOR 3.LASER SENSORS FOR 3D IMAGING 4.COLOUR 3D IMAGING TECHNOLOGY 5.PROPOSED SENSOR 6.APPLICATION 7.CONCLUSION 8.REFERENCE Contents

  5. 3D-Digitization ,also called 3D-computer vision. An optical method for full-field 3D-contour Introduction

  6. fast 3D-shape measurement with a moderately high measurement accuracy (about 100 microns). All these digitizers will require a thorough VLSI integration of basic laser camera functions to achieve size and cost reduction and most importantly, higher performance. Introduction Cont…

  7. . COLOUR 3D IMAGING TECHNOLOGY A 3D surface map is captured by scanning a laser spot onto a scene, collecting the reflected laser light from a different vantage point (triangulation).

  8. finally focusing the beam onto a position detector. A similar geometry can be based upon the projection of a laser line instead of a single laser spot. Geometric correction of the raw data gives two images in perfect registration: one with x, y, z co-ordinates and a second with intensity data representing the collected laser power from the scene.

  9. This work has provided unique sensors that will allow 3D digital imaging . The following sensors are targeted for integration into VLSI: LASER SENSORS FOR 3D IMAGING

  10. A) Synchronization circuit based upon dual photocells (bi cell) B) Smart 3D position sensors

  11. Synchronization circuit based upon dual photocells (bi cell) --> This sensor ensures the stability and the repeatability of range measurements in environment with varying temperature.

  12. Smart 3D position sensors --> Integration of most low level processing steps on a chip using advances in VLSI will allow digital 3D imaging technology to become widely accepted and accessible to research labs, universities, industries, hobbyists, and, also to the home. Cont…

  13. OPTICAL GEOMETERY & PHOTO SENSOR HIDDEN layer

  14. The cloud of point of the 3D digitized object. Several 3D views are merged to obtain the complete object APPLICATION The cloud of point of the 3D digitized object. Several 3D views are merged to obtain the complete object.

  15. VIDEO- CAPTURING. CAMERA PLACEMENT. CALIBERATION CONT…

  16. The results obtained so far have shown that optical sensors have reached a high level of development and reliability that are suited for high accuracy 3D vision systems. The result of this work has provided unique sensors that will allow 3D digital imaging technology to face the challenge posed by the many emerging markets . Conclusion:

  17. -:References:-

  18. Q….?

  19. THANKS

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