Oppt visual calibration board

Oppt visual calibration board

Calibration target? Corrects lens distortion for the vision machine, determines the conversion relationship between physical size and pixels, and determines 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, which requires the establishment of a geometric model of camera imaging. The geometric model of the camera can be obtained by photographing the flat plate with fixed spacing pattern array and calculation of the calibration algorithm, so as to obtain high-precision measurement and reconstruction results. The plate with fixed spacing pattern array is the calibration target.

1. Characteristics of LED backlight calibration board

1.1 led with high uniformity and brightness is placed at the bottom

1.2 the calibration template is placed on the top layer by means of a uniform light guide material

1.3 with light regulator, easy to adjust

1.4 the size should be processed according to the needs, and the maximum size should be 600mm * 600mm

1.5 type is mainly solid circle array pattern and chess board pattern

1.6 it can realize both short distance detection and long distance detection

2. Application of LED backlight calibration board

2.1 in machine vision

2.2 image measurement

2.3 Photogrammetry

2.4 three dimensional reconstruction

3. Product case

The following is the product calibration board customized by TCL * * Research Institute.