3.3.6. Camera Shield Detection
Automatically detect whether the camera lens is obstructed to ensure the monitoring function of the camera is not interrupted.
After adding Camera Shield Detection as an Extension node, click the plus sign to add it to the workflow editing area. The Image input of the Camera Shield Detection node must be the image data collected by the upstream Media node. After inputting the data, the node will output a result of type object. If more than one obstruction is detected and output, it will display an array type.

Result Testing
Input an image of a camera with an obstruction, and the result is as follows:
The Camera Shield Detection node will return the obstruction rate of the input image. The obstruction rate can be used to determine whether the camera lens is severely obstructed, thus requiring adjustment of the camera's position or direction.