Which option describes a valid use case for low-cost markerless motion capture systems?

• A. Only for laboratory experiments.
• B. For home-based exercise and activity promotion.
• C. Exclusively for professional sports analytics.
• D. Only for clinical imaging.

Answer: (B)

Markerless motion capture that is low-cost is designed to be accessible outside specialized labs, using common cameras and software to track movement without markers. This portability and affordability make it practical for home-based exercise and activity promotion, where people can set up a system in their living space, get real-time feedback on form, and stay motivated without visiting a lab or clinic. The other options imply requirements for controlled environments or higher-fidelity imaging that aren’t necessary for everyday, home use. So the home-based exercise and activity promotion use case is the best fit.