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Robotics Controlled 3D Photography

Robotics Controlled 3D Photography. Group 32 Alexander Choe Rohit Mittal Advisor: Dr. Marc Lin. Why 3D photography?.

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Robotics Controlled 3D Photography

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  1. Robotics Controlled 3D Photography Group 32 Alexander Choe Rohit Mittal Advisor: Dr. Marc Lin

  2. Why 3D photography? • Currently Dr. Marc Lin is working on a research involving thin film of cardiac tissue. In order to study the surface structure of these tissue in details he wants to produce a 3D digital image.

  3. Proposal • The goal of this project is to design and build a robotic controlled device that can automatically scan a film of cardiac tissue multiple times at different angles with a conventional bar infrared laser and get a 3D image using the shadow scan technique.

  4. What is a Shadow Scan Method? • Scan the surface of an object of interest (ex. With Shadow of a pencil) • Camera captures the refraction and produce a 3D image

  5. Problems with Shadow Scan • A typical 3D image captured by shadow scan technique has ‘shadows’ • An object must be scanned at different angles to erase these ‘shadows’ • Manually performed

  6. Objectives • Device must be robotically controlled • User must have some control over the device • The device must be able to scan the object at different angles to erase ‘shadows’ • The device must be able to scan a cardiac tissue (20 X 20 X 2 mm) with high precision. • Use Conventional infrared Laser

  7. Preliminary Design • Involves two motors (in red): rotating table and controlling laser

  8. 2-Axis Stepping Motor System • 2 motors • 2 Bipolar Chopper Drivers • Power Supply • Terminal Block • 2-Axis Stepping Motor Controller Board

  9. Past Work • Contacted professionals at other institutes who are familiar with shadow scanning • Obtained few hardware necessary for 3D photography (video card, camera, and etc.)

  10. Current Work • Developing the design for device • Understanding the circuitry for stepping motor system • Installing hardware (ex. Stepping motor control board)

  11. Obstacles to Overcome • Budget: approximately $2500 • Computer • Software / Program

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