Calibration targets
Checkerboard, circle-grid, and coded patterns on glass, ceramic, aluminum, and film substrates — built to drawing. Pattern and accuracy inputs are confirmed against your field of view and calibration algorithm.
Pattern types
These are our published product directions. Spacing, dot diameter, coding dictionary, and active area are confirmed against your calibration algorithm and field of view before plate-making.
Uniform black-and-white squares establish the relationship between image pixels and spatial coordinates, used for camera calibration and imaging-deviation correction.
A regular dot array supports coordinate calibration of industrial cameras, lens distortion correction, and vision measurement.
Distinguishable coded patterns support pose recognition, partial-visibility calibration, and coordinate positioning.
Custom calibration patterns and substrates tailored to the field of view, algorithm, and working space of 3D scanning and other dedicated equipment.
For synchronized two-camera calibration, helping correct lens distortion and determine the relative pose of a stereo system.
A multi-faceted 3D structure establishes multi-angle field-of-view relationships for multi-camera joint calibration and robot 3D-vision setup.
Non-planar calibration patterns custom-made for curved, cylindrical, and special workstations, confirmed by the equipment field of view, pose, and mounting space.
A coded-pattern calibration target for large-field machine vision, 3D scanning, and dedicated measurement stations, customizable with a support structure and on-site space.
How to choose
A calibration target is not chosen by maximizing accuracy. It is derived from the camera, the algorithm, and the environment. Working in this order cuts down on back-and-forth.
Sensor resolution, focal length, and working distance set the active area and pattern density. A larger field of view generally calls for a larger board and coarser spacing.
Checkerboards suit most single-camera routines. Circle grids help where sub-pixel centroid fitting matters. Coded patterns handle partial occlusion and pose recognition. The pattern has to match your calibration algorithm.
Glass holds flatness for higher-accuracy work. Ceramic scatters light and wipes clean, which helps under bright illumination. Aluminum takes knocks on the line. Film is light and low-cost for large formats or trials.
Spacing tolerance, pattern position accuracy, and board flatness are confirmed against your operating conditions. Quantity, packaging, and lead time are settled in the same technical confirmation sheet.
Before you ask
With these details we can go straight to plan confirmation. If you do not have all of them yet, contact us anyway and our engineers will work backwards from the application.
Request a quoteFAQ
It depends on your calibration algorithm. Checkerboard corner detection is mature and supported by default in most calibration libraries. Circle grids allow sub-pixel centroid fitting, which tends to hold up better when the pattern is slightly defocused or you need a more stable center estimate. Match it to your existing pipeline rather than picking whichever sounds more accurate.
Glass keeps flatness stable and suits higher-accuracy calibration. Ceramic gives a diffuse surface that avoids specular hotspots under strong lighting. Aluminum resists impact for long-term production use. Film is light and low-cost, which fits large formats or proof-of-concept stages. The right choice follows from your accuracy requirement and operating environment.
Yes. Send the drawing or pattern file, the active area, substrate, and accuracy requirement, and we can assess it. Irregular outlines, through-holes, mounting datums, and coded dictionaries are all open to discussion; the resulting parameters are fixed in the technical confirmation sheet.
Large fields of view and 3D scanning often need bigger boards. Options worth discussing include segmented tiling, film substrates to cut weight, and added framing for rigidity. Maximum board size and the tiling approach depend on how the target mounts on your equipment.
The notes above are selection guidance. Final dimensions, accuracy, and delivery terms are governed by the technical confirmation sheet.
We will confirm a workable plan based on the pattern, substrate, accuracy, and operating environment. All parameters are subject to the final technical confirmation sheet.
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