High-Precision Octahedral Irregular-Shaped Calibration Plate

The octahedral irregular-shaped calibration plate is a specialized calibration tool used in machine vision, 3D vision, camera calibration, and multi-view imaging systems. Its main body adopts an octahedral or multi-faceted irregular structure, with circular patterns, feature points, or coded marks with clearly defined geometric characteristics arranged on different surfaces. It can provide a stable and reliable spatial geometric reference for cameras with multiple viewpoints. Compared with traditional planar calibration plates, the octahedral irregular-shaped calibration plate has the characteristics of multi-plane, multi-angle, and three-dimensional spatial distribution, and can simultaneously provide feature information in different directions. It is suitable for applications such as camera intrinsic and extrinsic parameter calibration, inter-camera positional relationship calibration, and multi-camera coordinate system transformation.

1. Main Features

(1) Three-dimensional multi-faceted structure: Covers multiple calibration surfaces in different directions, improving the spatial feature coverage.

(2) High-precision feature points: Made with precision machining and high-precision patterns to ensure the accuracy of the calibration reference.

(3) Multi-view applicability: Suitable for joint calibration of binocular, trinocular, and multi-camera vision systems.

(4) Strong spatial positioning capability: It can establish a stable three-dimensional coordinate reference, providing a benchmark for spatial measurement and attitude calculation.

(5) Stable structure: It adopts a highly stable base material and precision assembly process, reducing geometric errors caused by temperature, vibration, and long-term use.

2. Application areas

Widely used in machine vision, 3D vision, robot vision, autonomous driving perception, photogrammetry, and other fields. Typical applications include camera intrinsic parameter calibration, extrinsic parameter calibration, multi-camera joint calibration, 3D reconstruction, coordinate system transformation, and accuracy verification of vision measurement systems.