Pointing Device, Controlling Method of the Same, Glasses for 3D Image, and Display Apparatus

摘要

A pointing device includes: a communication unit which performs communication with glasses for viewing a 3D image and a display apparatus; and a control unit which controls the communication unit to perform communication with the glasses, detects a reference distance between the glasses and the pointing device and a measurement distance between the glasses and the pointing device, and determines depth information for 3D pointing based on the reference distance and the measurement distance.