Polyhedral Calibration Plate/3D Stereo Calibration Plate
Polyhedral calibration plate/3D stereo calibration plate is a
high-precision calibration tool used in fields such as machine
vision, photogrammetry, and 3D reconstruction. Its core function is
to provide spatial depth information calibration for the visual
system, thereby establishing accurate 3D geometric models and
achieving high-precision measurement and reconstruction. Mainly
used for system calibration and performance evaluation in fields
such as machine vision, 3D scanning, and optical measurement. It
adds active illumination function on the basis of traditional
passive calibration board, providing more stable, controllable and
suitable calibration conditions for complex environments.
Product features: high precision and repeatability, integrated design and
portability, controllable performance parameters, customizable size
and frequency band.
(1) Core scope of application;
Accuracy calibration and verification of 3D scanners, calibration
of binocular stereo vision systems, calibration of structured light
3D reconstruction systems, establishment of spatial coordinates for
photogrammetric systems, 3D vision positioning and grasping for
robots, high-precision modeling for reverse engineering,
calibration of industrial CT/non-destructive testing systems, and
spatial calibration of multi camera arrays.
(2) Working principle:
The calibration board adopts a three-dimensional structure design
(such as stepped, multi plane combination, etc.), and arranges
high-precision feature point arrays on different spatial depth
planes to provide known three-dimensional physical coordinate
information for the visual system. After the camera captures images
of the multi view stereo calibration board, the algorithm extracts
the three-dimensional spatial coordinates of feature points on each
plane, establishes an accurate mapping relationship between the
image pixel coordinate system and the world three-dimensional
coordinate system, solves the internal and external parameters and
spatial pose relationship of the multi camera system, and completes
the calibration and spatial calibration of the three-dimensional
vision system. The active light source design effectively solves
the problem of difficult feature extraction in traditional 3D
calibration boards under complex lighting conditions, significantly
improving calibration repeatability and accuracy.
360 Degree Rotating Custom Calibration Target With Bracket
