Apparatus for replaying content using gaze recognition and method thereof

An apparatus for replaying content, wherein the apparatus is at least temporarily realized by a computer and comprises:

• a gaze tracking unit that calculates gaze information on a screen coordinate system by performing gaze-tracking;
• a conversion unit that performs conversion into a vertex of a three-dimensional object defined on a local coordinate system based on the gaze information on the screen coordinate system;
• an extraction unit that extracts a focal length using a distance between the vertex of the converted three-dimensional object and the screen coordinate system;
• and
• a processing unit that adjusts a depth of field (DoF) based on the extracted focal length.

A method of operating an apparatus for replaying content, at least temporarily realized by a computer, the method comprising:

• calculating a three-dimensional coordinate using gaze information obtained through gaze-tracking;
• extracting a focal length corresponding to the calculated three-dimensional coordinate;
• and
• collecting at least one of a perspective and a focus in a content for stereoscopic three-dimensional displays based on the calculated focal length.