3D Scanner built with C++ and openCV
This is a 3D Scanner built in C++ using Open CV library and OpenGL
Mechanical Design
To build the 3D scanner we used a wood disk with a radio of 150 mm to
place the object, there is an orifice in the middle of the disk where the axis of the motor will be placed
Camera Hook
This is where the camera will be placed with screws
Laser Hook
Used to placed the laser
Slider
This is build to slid the camera and the lase in the right angle
Ensemble
How the ensemble piece looks like
Electronic Design
5v and 12v Power source We need a 5v source to power the LEDs and 12v for the stepper motor circuit Driver for stepper motor We used the L283D Relay circuit We used relay circuit to turn on/off the LEDs to take color pictures of the elements we were scanning
**A bit of theory **
For the 3D scanner we used the triangulation method if you know the distance between the camera and laser
Once we get all the points we used Bezier Surface to reconstruct the element we wanted to scan
Pattern utilized for calibration of the camera, each square is 5 mm x 5mm
Skelotonized image of calibration
Coordenates calculation
Transformation distance from pixel to millimeter
R(X_{d}) = aX_{3}^{d} + bX_{2}^{d} + cX_{d} +d
Radio of profile
Conversion factor from pixels to milimeters (experimental)
conversion from pixel to mm F(R_{R}) = aR_{2}^{R} + bR_{R} + C
Height of profile
Image without processing
Scan Result
Point plastic
