Frozen Screen Detection
Contents
You can use the Frozen Screen Detection Transform to detect a frozen screen image from a Webcam or similar source. A frozen screen is defined as four consecutive frames with no change. Below is a typical configuration:
Frozen Screen Detection Transform connected to WebCam Transform
FSD Enable: When this Boolean port is true, frozen screen detection is active. When false, the Transform does not transmit any output. FSD Source: This MxV Image port accepts images from a camera or similar Transform. To connect with a NI Vision Image Signal, use an image conversion Transform to convert the image type. FSD Detect: This Boolean port is set to true when a frozen screen is detected. |
The properties of the Frozen Screen Detection Transform are shown here:  Frozen Screen Detection Transform Properties
When the Transform is used with a camera Transform, the Tick Rate property should be the same as the Image Stream Rate on the Camera Transform.
|