Difference between revisions of "IVS/Global Setup"

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Continue with configuration the standard way
 
Continue with configuration the standard way
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Latest revision as of 22:23, 15 August 2019

Global Setup

Description

This article will show you how to use the Global Setup feature to set the global settings for IVS analysis.

Depth of field calibration allows the camera to determine the corresponding relationship between the 2D image captured by the camera and the actual 3D object using one horizontal ruler and three vertical rulers that are defined by the user using the corresponding actual distance.

Prerequisites

  • Supported device with IVS feature

Metric to Imperial Conversion

  • 1 Meter = 3.28 Feet
  • 2 Meters = 6.56 Feet
  • 3 Meters = 9.84 Feet

Global Setup Best Practices

  • The camera must be installed at a medium or distant view with an installation height of more than 3 meters.
  • Scenes with parallel view or ceiling mounted are not supported
  • Horizontal surfaces can be calibrated, not vertical walls or sloping surfaces
  • Not applicable for scenes that have a distorted view such as captured by super wide-angle or a fisheye camera

2019-08-06 7-25-05.png

Vertical rulers: Three rulers must be created. Select three reference objects with fixed height that are positioned in a triangular distribution

Horizontal ruler: Use a reference object with a known length such as a sign on the road or make an actual measurement of the ground

The scene for this example has been measured and marked with tape (1 meter in length) to use as a reference for the 4 rulers to be drawn

Video Instructions

  • Example 1: Vertical Rule = 1 Meter
  • Example 2: Horizontal Rule = 1.57
  • Outcome: Horizontal Rule should be redrawn until closer to 1 meter when using, "Calibration Validation"

Step by Step Instructions

1. Log into the web interface of the camera

IVS Global Setup - 1.jpg

2. Click Setting

IVS Global Setup - 2.jpg

3. Click Event > IVS

Click the tab labeled 'Global Setup'

IVS Global Setup - 3.jpg

4. The calibration zone must be created

Click Add Calibration Zone

Then

Click inside the video frame to begin to draw the zone

IVS Global Setup - 4.jpg


5. Left click to draw - This frame must include all of the objects/areas being used as a reference for the rulers

IVS Global Setup - 5.jpg

Right click to complete the drawing

IVS Global Setup - 5-1.jpg


6. The 3 vertical reference rulers must be drawn.

These lines must be identical in (actual) height.

Toggle the button next to Vertical then click Add Rulers

Then click inside the video frame to drag and draw the line

IVS Global Setup - 6.jpg


7. One Vertical ruler has been created in this scene

IVS Global Setup - 7.jpg

8.Repeat the same process twice to create 2 more Vertical rulers in the scene

IVS Global Setup - 8.jpg

9. The horizontal reference rule must be drawn.

Toggle the button next to Horizontal then click Add Rulers

Then click inside the video frame to drag and draw the line

IVS Global Setup - 9.jpg

10. All rulers complete

IVS Global Setup - 10.jpg

11. Enter the actual length of the created Rulers by first selecting the Rule in the list above then entering the value in the 'Actual Length' field (in meters)

IVS Global Setup - 11.jpg

12. Click Save once all parameters have been set

IVS Global Setup - 12.jpg

13. To test calibration accuracy:

  • Use the drop-down to select from Height or Weight Verification
  • Click Calibration Validation

IVS Global Setup - 13.jpg

Left click inside the Calibrate Region to draw a line


IVS Global Setup - 14.jpg

IVS Global Setup - 15.jpg

Zoomed:

IVS Global Setup - Zoomed Calibration.jpg


In this example the Calibration appears to be correct, the drawn line reports a value of 1m , equal to our reference lines marked out


In the case of a major difference between the estimated value and the actual one, fine-tune or reset the parameters until the error requirement is met.

Use Second Monitor to Establish Calibration Regions

Video

Instructions

1. From the Global Setup menu:

Double click the video frame and it will fullscreen on the primary monitor of Windows.

For this reason it is suggested to move the web browser window to the Second Monitor for configuration.

IVS Global Setup Second Monitor - 1.jpg

2. The picture will display fullscreen on the primary monitor.

IVS Global Setup Second Monitor - 2.jpg

3. Click the 'Add Calibration Zone'

IVS Global Setup Second Monitor - 3.jpg

4. You can now draw on the fullscreen display to create the zone.

IVS Global Setup Second Monitor - 4.jpg

Right click to complete the drawing.

IVS Global Setup Second Monitor - 5.jpg

5. To draw the Rulers, use the Ruler section to select the Ruler type then click 'Add Rulers'

IVS Global Setup Second Monitor - 6.jpg

6. You can now draw on the fullscreen display to create the rulers.

IVS Global Setup Second Monitor - 7.jpg

7. All rulers complete.

IVS Global Setup Second Monitor - 8.jpg

Click Save to save all current settings

After drawing rulers, you can exit the fullscreen by double clicking or pressing the ESC key

Continue with configuration the standard way