Stereo calibration targets

Custom binocular camera calibration boards

Custom targets for stereo cameras, 3D vision, and depth measurement. We confirm the pattern, dimensions, substrate, and mounting method against the shared field of view, working distance, and calibration algorithm.

Start from the use case

What decides a stereo calibration target?

A stereo system must see the same feature points from both cameras in the same working space. Effective area, pattern density, flatness, and mounting should be confirmed together with the stereo baseline, lens, and working distance.

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Typical equipment and projects

  • Stereo intrinsic and extrinsic calibration
  • Depth measurement and 3D vision
  • Robot positioning, picking, and guidance
  • Industrial 3D reconstruction and inspection

Published product directions

Related Ruihua Optical products

The product links below provide a concrete reference for the solution. Pattern, substrate, dimensions, accuracy, and delivery are confirmed per project.

Stereo (binocular) calibration target from the Ruihua brochure

Stereo (binocular) calibration target

For synchronized two-camera calibration, helping correct lens distortion and determine the relative pose of a stereo system.

Before you ask

Inputs to include in an enquiry

A complete input list helps engineering review the plan quickly. Send what you already have; missing details can be confirmed during the enquiry.

  • Camera models, resolution, focal length, and stereo baseline
  • Working distance, shared field of view, and mounting pose
  • Checkerboard, circle-grid, or coded pattern and algorithm
  • Effective area, outer size, and mounting holes
  • Preferred glass, ceramic, aluminum, or film substrate

Technical confirmation

Stereo-target confirmation path

  1. 01

    Start from the shared field of view

    Confirm the area visible to both cameras so the correspondence points are not available on only one side.

  2. 02

    Match the algorithm to the pattern

    Choose checkerboard, circle grid, or coded marks, then fix the cell size or point spacing.

  3. 03

    Confirm substrate and mounting

    Select glass, ceramic, aluminum, or film from the flatness, lighting, cleaning, and fixture conditions.

  4. 04

    Lock the technical sheet

    Dimensions, accuracy, holes, quantity, packaging, and lead time are recorded before production.

FAQ

Binocular calibration board questions

Does a stereo target always need to be larger than a monocular target?

No. Size follows the shared field of view, working distance, and the number of features required by the algorithm. Confirm the common area first, then set the board size.

Should a stereo system use a checkerboard or a circle grid?

Either can work when it matches the existing calibration pipeline. Checkerboards offer mature corner detection; circle grids help when stable center fitting is important.

Can the target follow custom mounting holes or an irregular outline?

Yes. Send the outer profile, holes, datums, effective area, and mounting pose so the shape and support can be assessed against the equipment space.

Final dimensions, flatness, pattern accuracy, and lead time are governed by the technical confirmation sheet.

Send us the drawing, dimensions, and application

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.