Head-mounted display and method of controlling the same

A head-mounted display (HMD) comprising a first body and a second body,

• the first body comprises:
• a display unit configured to display visual information;
• a first angle sensing unit configured to sense a first angle of rotating the first body;
• a first communication unit configured to transmit/receive data;
• and
• a processor configured to control the display unit, the first angle sensing unit, and the first communication unit;
• and
• the second body comprises:
• a camera unit configured to sense an image;
• a second communication unit configured to transmit/receive data;
• an input sensing unit configured to detect an input signal and transmit a result of the detection to the processor;
• and
• a second angle sensing unit to sense a second angle of rotating the second body,
• wherein the second body is mountable to and detachable from the first body,
• wherein, when the second body is detached from the first body,
• the processor is further configured to:
• acquire the first angle of rotation and the second angle of rotation;
• display a separation image preview interface to display an image performed by a first rotation compensation on a sensed image based on the second angle of rotation;
• detect a first capturing signal;
• and
• capture the sensed image and store an image performed by a second rotation compensation on the captured image based on the first angle of rotation and the second angle of rotation.