Ncam Reality
...
Operation
Options of tracking modes

Natural Tracking Mode

4min

Choosing Natural Marker Mode

Where should Natural tracking typically be used?

The natural tracking mode can be used equally well in both indoor and outdoor environments. It offers a great deal of flexibility as it does not require the placement of special markers in the environment.

Some typical usage examples are:

  • Film sets where it is often impractical to try and place markers
  • Broadcast studios where there are few reflective surfaces
  • Outside

When should I consider reflective marker tracking instead?

While natural tracking mode offers a huge amount of convenience, there are some scenarios where reflective marker mode will provide better results. The main drawback with natural mode is that it is always trying to learn the environment, which can be inefficient when the system is being used in a consistent space.

Additionally, the use of reflective markers can make it easier to achieve more accurate and stable tracking, particularly when a "set and forget" workflow is desired. We typically recommend reflective marker tracking when:

  • The system is being used inside and in the same area repeatedly
  • Minimal day to day setup is required
  • There are features in the environment that can be troublesome for natural tracking
    • Reflective surfaces
    • Changing lighting conditions
  • An extremely accurate and reliable zero point is needed

"Recovery" and using saved alignments

When operating in natural tracking mode, it is very possible to create an alignment and to save it and recover it over multiple usage sessions. However it's vital to understand that this type of workflow is dependent on the tracking environment.

Ncam uses the pointcloud and the features it recognises inside the environment to locate itself when it is "recovering". If your environment includes very clear tracking features that are easily identifiable and do not change or move, then loading and recovering alignments will work well.

However, if the environment changes gradually or lacks particularly distinct features, then recovery in natural mode can struggle.

Generally we recommend that if you are intending on using the system repeatedly in an area and you wish to only set the alignment once, then using Marker mode will generally give you better results and far more stability