Camera Calibration
In computer vision applications, cameras project 3D world points onto 2D image planes. Traditional cameras possess intrinsic parameters such as optical center, focal length, and lens distortion parameters that significantly impact the imaging process. While manufacturers typically provide these specifications, it's crucial to note that focal length changes during zoom operations, and other parameters may also vary to minimize distortion. For depth calculation and 3D scene reconstruction, accurate camera position relative to reference points must be determined. In stereo vision systems, one camera can serve as the reference point, requiring both intrinsic parameters and relative rotation/translation between cameras. Standard implementation approaches often utilize chessboard patterns for calibration procedures.