Tracking system

A method for use with a tracking system, the tracking system for use with a head mounted display on a watercraft, the method comprising:

• determining first tracking information of a head mounted display based on optical tracking means, the optical tracking means including an optical tracking mark;
• selecting at least one non-optical tracking means of a set of non-optical tracking means, based on a location of the head mounted display, the at least one non-optical tracking means including a sensor;
• determining second tracking information of the head mounted display based on the at least one non-optical tracking means of the set of non-optical tracking means;
• and
• determining an updated tracking information of the head mounted display based on the first tracking information and the second tracking information.

A non-transitory machine readable medium comprising instructions, that when executed by one or more processors, cause a process to be carried out for use with a tracking system, the tracking system for use with a head mounted display on a watercraft, the process comprising:

• determining first tracking information of a head mounted display based on an optical tracking mark;
• selecting at least one non-optical tracking sensor of a set of non-optical tracking sensors, based on a location of the head mounted display;
• determining second tracking information of the head mounted display based on the at least one non-optical tracking sensor;
• and
• determining an updated tracking information of the head mounted display based on the first tracking information and the second tracking information.