Initial Calibration
Keep the camera in Live playback mode, click the "Calibration" button in the toolbar above the software to open the calibration panel, and select "Initial Calibration" in the calibration window. Click on the gear button on the right to open the calibration settings , select the calibration axis (Z/Y) in the "Frame", select the L calibration rod you are using (L-600/L-450/L-240) in the "L-Type", and "Manual" is the custom L-shaped rod type.；
Next, perform L calibration and place the L-shaped rod selected in step 1 in the center of the field. Confirm the coordinate orientation (when the Z-axis is upward, the long side direction of the L-rod is in the positive X-axis direction, and the short side direction is in the positive Y-axis direction; when the Y-axis is upward, the long side direction of the L-rod is in the positive Z-axis direction, and the short side direction is in the positive X-axis direction). Before performing L-type calibration, confirm that the number in the bottom left parentheses of all 2D views is stable at 4. Click "L-calibration" at the bottom of the panel. If L-calibration is passed, the window will become a T-calibration window, and the "Next" button in the window is clickable. If L-type calibration is not passed, a prompt "L Calibration Field" will appear, and the "Next" button is gray and cannot be clicked, possibly due to the presence of miscellaneous points in the calibration site, Repeat the above impurity removal operation until it passes the L calibration；
After passing the L calibration, move the L-shaped calibration rod out of the capture area to ensure that no camera can observe it, and bring the T-shaped calibration rod into the capture area;
Perform T calibration. In the basic calibration T calibration window, "pole length" represents the distance between the reflective marker points at both ends of the T-shaped pole used. Enter the number marked on the label on the T-shaped pole, and "duration" represents the calibration time, usually 60-120 seconds, After setting up, click the "Next" button. The swing personnel hold the T-shaped calibration rod and repeatedly swing it within the capture area. If the camera collects valid data, the corresponding area will turn gray, ensuring that the effective data amount of each camera is sufficient. As the collected data amount increases, the color of each camera will change from light to dark ；
A progress bar is displayed in the 5 T calibration, which gradually moves forward with the swing time. When the progress bar reaches 50%, the background color of the T calibration will change from orange yellow to green. Wave the T-bar to cover every corner visible to the camera as much as possible, In the 2D view of all cameras, at most three markers of the T-shaped bar can be seen (i.e., the number in the bottom left corner of the 2D view of all cameras is less than or equal to 3, try to make as many camera numbers as possible equal to 3). During the calibration process, the 2D interface displays the area scanned by the calibration bar, which can display the available data amount and impurities in Live. When the dialog box displays the predetermined frame number, that is, when the progress bar reaches 100%, a calculation button appears below the floating window, Click Calculate and the software enters the calculation process. After the calculation is completed, the software will provide feedback on the calibration results (evaluated as poor, normal, good, or very good). Different icons will also be displayed on the right side of T calibration based on the calibration results; (If the calibration result shows "poor", it is recommended to recalibrate, otherwise it can be saved and used normally.) Click "Save Calibration File" to input the file and click Finish；
Click on "3D Data View" in the toolbar to display the 3D view(8.2.2). This 3D interface can be rotated, panned, and zoomed in by Ctrl/Shift in conjunction with the left/middle/right mouse buttons; Simultaneously click the play button at the bottom of the interface to put the camera in Live operation mode; In the 3D view, holding down the left mouse button and dragging the view allows for free rotation of the 3D view. Clicking the right mouse button brings up the function menu. Use of key combinations: Hold down Shift+left mouse button in a non frozen frame state to select a named point. Hold down the middle mouse button to drag the view, and scroll the middle mouse button to zoom in or out of the view. Crtl+left mouse button can rotate the view in a fixed direction. Space bar restores the original 3D perspective with one click.
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