2D Camera Tracking Settings

Navigation:  Widget Designer > Nodes > Input Nodes > Devices Input > ID Tag Tracker Input >

2D Camera Tracking Settings

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Navigation:  Widget Designer > Nodes > Input Nodes > Devices Input > ID Tag Tracker Input >

2D Camera Tracking Settings

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This topic explains the section "2D Camera Tracking Settings" of the ID Tag node, for general information about IR ID tracking and links to other chapters please see the topic ID Tag Tracker.

wd_nodes_input_id-tag-tracker_2d-camera-tracking-settings

This section includes settings that influence when a tag is recognized as an ID and when the ID is blocked. Before changing these options, make sure that you see the tag's light in the preview by setting up the "Camera Settings" and that the "Mode" in the section "Global Tracking Settings" matches the one the IDs were configured with.

Max Motion

This defines the maximum distance an ID can move from one frame to the next. If it is faster, the ID will be removed from the tag.
The value is depicted as an outer red circle in the preview.
The higher the value is, the more performance is needed. See also the below description of "Min Distance".

Min Distance

This defines the minimum distance two IDs can be next to each other. If they get closer, their IDs will be removed.
The value is depicted as an inner red circle in the preview.
The smaller the value is, the less stable the ID detection might become as it is more likely that the two blinking patterns or physical tags overlap each other.

For a scenario where several tags are attached to one object (e.g. on a panel) it is likely that they are quite close to each other (from the view of a camera or a certain rotation angle). The minimum distance should be set up in such a way that the tags do not disappear when rotating and moving the object. At the same time the max. motion should not be larger than the min. distance as this could allow that an ID "jumps" over to another tag in case of a short fault detection. This is why the two parameters are linked to each other.

Min /Max
Height
Width

This defines how small or big a tag can be seen from a camera before its ID is blocked.

Pre-Filter

This can be called a pre-damping as it defines the number of passed frames from which the position of a processed 2D point is averaged.