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Checkerboard Calibration Targets On Ceramic

Description

The ceramic checkerboard targets with ceramic substrates(same with white ivory or opal glass ) that remain rigid, therefore not affecting the pattern by flexure. These Checkerboard targets minimize the effect of shadowing from back reflections, making them ideal for reflective illumination calibration of imaging systems with wide field of views.
To make sure the accuracy ,you need high precision checkerboard calibration targets.Laser cutting holes or some special shape to suit the mounting assembly.

Features of checkerboard target:

Adopt high precision processing technology, and the ceramic with low thermal expansion coefficient, to ensure the high precision (±1um), also various sizes can be customized for different application.

Application:

Research institutes, Computer Vision, Machine Vision use high-precision calibration tools,3D image measurement, 3D reverse engineering, stereo matching, 3D reconstruction, etc.,

Function:

In order to correct lens distortion, determine the conversion relationship between physical dimensions and pixels, and determine the relationship between the three-dimensional 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. For precision measurement, lens distortion is inevitable. Calibration is used to improve the application performance of high-precision measurement and detection to achieve satisfactory accuracy.

Use:

Most calibration software supports the use of solid squares as markers. In the process of high-precision camera calibration, most of them take feature points as reference points, accurately extract the center position through graph fitting, and eliminate the centroid caused by projection through known calibration template parameters.The Checkerboard Grid Calibration Board is corner detection based on gray image, corner detection based on binary image and corner detection based on contour curve. OpenCV calibration software can easily obtain the calibration result data of the camera, confirm the performance of the optical system, and determine the resolution of the camera lens.

Specification:

Product Type	High Precision Ceramic Checkerboard Calibration Targets
Coating Type	Photolithographic
Design	Chrome-on-Ceramic
Substrate	Matte Ceramic / Glossy Ceramic
Pattern Dimension	Standard or Various size for small or large FOV
Chrome Thickness	0.120 µm
Substrate Thickness	0.06" (1.5 mm) or custom
Toleranceb	±1 µm~±10 µm
Dimensions	Standard or Custom
Application	calibrating distortion of imaging systems,like (Corner detection,Edge detection,Ridge detection,Blob detection,Scale space etc.)

Ceramic Checkerboard Target Part Number:

Part Number	Plate Size	Grid Array	Square Size	Pattern Size	Material
WMT-025-0.1-G	25*25mm	165*165	0.1*0.1mmm	16.5*16.5mm	Ceramic
WMT-030-0.2-G	30*30mm	103*103	0.2*0.2mm	20.6*20.6mm	Ceramic
WMT-038-0.25-G	38*38mm	103*103	0.25*0.25mm	25.75*25.75mm	Ceramic
WMT-050-0.5-G	50*50mm	61*61	0.5*0.5mm	30.5*30.5mm	Ceramic
WMT-062-1.0-G	62*62mm	51*51	1*1mm	51*51mm	Ceramic
WMT-065-1.5-G	65*65mm	37*37	1.5*1.5mm	55.5*55.5mm	Ceramic
WMT-100-2.0-G	100*100mm	37*37	2*2mm	74*74mm	Ceramic
WMT-100-2.5-G	100*100mm	37*37	2.5*2.5mm	92.5*92.5mm	Ceramic
WMT-111-3.0-G	111*111mm	35*35	3*3mm	105*105mm	Ceramic
WMT-111-4.0-G	111*111mm	27*27	4*4mm	108*108mm	Ceramic

The Ceramic Checkerboard Target Material Details:

Ceramic is Opaque （ light-proof）and diffuse reflection	High precision Ceramic	Calibration targets with laser photolithography process, standard accuracy 1μm, The highest precision is 0.5um; Max dimension 200*200mm； Thickness 0.38mm、1mm、3mm、 5mm for options
Ceramic is Opaque （ light-proof）and diffuse reflection	Ceramic	The accuracy is 10um, Max dimension 300*300mm； Thickness 0.38mm、1mm、3mm、 5mm、10mm for options

Laser cut the ceramic in the shape you need it.

Factory Equipment :
The Ceramic Checkerboard Target production equipment including: IC-Mask writer equipment, Automatic Post-treatment equipment, Spin coating equipment, Laser cutting equipment,AOI inspection equipment etc.
The Ceramic Checkerboard Target testing equipment including: 3D Automatic Measuring Instrument , Reflectivity Detection Instrument , Optical Density Meter

Factory QA&QC:

Packing and shipment:

Checkerboard Calibration Targets On Glass

Checkerboard Calibration Targets On Film