CAMERA CALIBRATION METHOD AND CAMERA CALIBRATION SYSTEM

Organization Name

INDUSTRIAL TECHNOLOGY RESEARCH INSTITUTE

Inventor(s)

Shu-Hsin Chang of Hsinchu County (TW)

Kun-Hsien Lu of Kaohsiung City (TW)

Yi-Yu Su of Kaohsiung City (TW)

Wei-Cheng Sun of Kaohsiung City (TW)

Yu-Hsien Hsiao of Chiayi County (TW)

CAMERA CALIBRATION METHOD AND CAMERA CALIBRATION SYSTEM - A simplified explanation of the abstract

This abstract first appeared for US patent application 18086689 titled 'CAMERA CALIBRATION METHOD AND CAMERA CALIBRATION SYSTEM

The present disclosure introduces a method and system for camera calibration.

Setting up a camera in a space
Establishing or selecting two line segments in the space
Obtaining an image of the space with the two line segments
Calculating camera parameters based on the information obtained
Calculating rotation angles and translation vectors of the camera
Determining a third rotation angle based on reference direction
Calculating translation vector elements based on reference point

Potential Applications: - Computer vision systems - Augmented reality applications - Robotics and automation - Surveillance systems - 3D modeling and mapping

Problems Solved: - Ensures accurate calibration of cameras - Improves the performance of vision-based systems - Enhances the accuracy of depth perception in images

Benefits: - Increased precision in image analysis - Improved object recognition capabilities - Enhanced spatial awareness in camera systems

Commercial Applications: Title: Advanced Camera Calibration Technology for Enhanced Vision Systems This technology can be utilized in industries such as: - Automotive for advanced driver assistance systems - Security for surveillance cameras - Entertainment for virtual reality applications - Manufacturing for quality control processes

Questions about Camera Calibration: 1. How does camera calibration impact the accuracy of computer vision systems?

  Camera calibration plays a crucial role in ensuring the accuracy and reliability of computer vision systems by correcting distortions and inaccuracies in image capture.

2. What are the key parameters that need to be considered during camera calibration?

  The key parameters include focal length, rotation angles, translation vectors, and reference points that are essential for accurately calibrating a camera system.

Original Abstract Submitted

The present disclosure provides a camera calibration method and a system thereof. The method includes setting up a camera in a space; establishing or selecting two line segments in the space, and obtaining an image of the space including the two line segments, and obtaining heights and image coordinates of upper and lower endpoints of the two line segments; calculating a focal length, a first rotation angle, a second rotation angle and a third element of a translation vector of the camera based on the information of the two line segments; calculating a third rotation angle of the camera based on a reference direction and the camera information obtained above; calculating a first element and a second element of the translation vector of the camera based on a reference point and the camera information obtained above.