Calibração dos parâmetros extrínsecos e intrínsecos de um sistema câmara + projetor

November 25, 2024

The dissertation develops methodology for calibrating a camera + projector system, focusing on 3D reconstruction of objects using structured light. Precise calibration of intrinsic and extrinsic parameters of camera and projector is essential to ensure accuracy of 3D reconstructions. The methodology uses algorithms for calibrating both devices and visual patterns that allow correspondences to be established between points captured by camera and those projected. The calibration process begins with capturing images of a calibration object, which is a chessboard, enabling estimation of intrinsic parameters. Next, extrinsic parameters are determined, ensuring precise alignment between camera and projector. With these parameters, point triangulation is carried out, enabling 3D reconstruction. Experimental results demonstrate that methodology achieves accuracy with few errors, proving robust and versatile across different configurations and scenarios. This work contributes to more accessible and efficient 3D reconstruction solutions, applicable in fields such as robotics, augmented reality, and digitalization.

Authors in the community:

• 

  J

  João Rafael Lopes Pedrosa

  ist179833

Supervisors of this institution:

• 

  A

  Alexandre José Malheiro Bernardino

  ist13761

electrical-engineering-electronic-engineering-information-engineering - Electrical engineering, electronic engineering, information engineering

por - Portuguese

Instituto Superior Técnico