A Custom-Shaped QR Code Calibration Board is an advanced calibration target designed for precise camera calibration in complex vision systems. Unlike standard checkerboards or square QR code boards, these boards feature QR codes arranged in non-rectangular or irregular patterns, allowing for calibration in irregular fields of view or constrained environments. They provide high accuracy in determining camera intrinsic parameters, extrinsic parameters, and lens distortion. These boards come in various sizes and shapes to suit different industrial and research applications. Made from durable materials like aluminum, acrylic, or printed film, they are suitable for both 2D planar and 3D spatial calibration setups, providing flexible solutions for challenging calibration scenarios.