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The system has been designed to have an extremely low latency which allows it to be operated via a helmet mounted display (HMD) using a head tracker.

该系统设计有一个非常低的延迟，使其能够通过一个头盔显示器（HMD）使用头部跟踪。

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There are also problems with the crucial helmet-mounted display, which also must be resolved.

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If it finds a matching reference, it'll bring up contextual information that is displayed on the Brother head-mounted display that accompanies the SMI glasses.

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Similarly, the movements of the rats were tracked in their cage and used to control an avatar projected into the VR world the human subjects experienced via a head-mounted display.

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