As we all know, in machine vision, image measurement, photogrammetry, 3D reconstruction and other applications, in order to correct lens distortion, determine the conversion relationship between physical dimensions and pixels, and determine the relationship between the 3D geometric position of a point on the surface of a space object and its corresponding point in the image, it is necessary to establish a geometric model of camera imaging. The geometric model of the camera can be obtained through the calculation of the calibration algorithm after the camera takes a flat plate with a fixed spacing pattern array, so as to obtain high-precision measurement and reconstruction results. The flat plate with a pattern array with fixed spacing is the calibration plate. The Halcon calibration board is one of the calibration boards. Do you know the product features of the Halcon calibration board? Here's a brief introduction:
Product characteristics of halcon calibration board:
1. Camera calibration is a necessary process to accurately measure the target object. The distortion of each lens is different. The distortion of this lens can be corrected through camera calibration. After camera calibration, the metric coordinates of the object in the world coordinate system can be obtained. Camera calibration is actually the process of determining the internal and external parameters of the camera.
2. The positioning accuracy is as high as 0.001 mm.
3. Compatible with Halcon and ActiveVision Tools machine vision software development packages from MVtech, Germany. A 7x7 dot matrix with a border and a bevel on the periphery.
To sum up, it is the product characteristics of Halcon calibration board. In the machine vision inspection industry, the application of calibration plate is almost indispensable. Because accurate camera calibration is very important for all successful applications of machine/computer vision, the role of the calibration plate is particularly important.
