An apparatus and a method for constructing a big data database of a three-dimensional volume image are disclosed. The apparatus of the present invention comprises: an image acquisition unit for acquiring a three-dimensional volume image provided with a plurality of cross sectional surface images; an image display unit for displaying, on a screen, at least one cross sectional surface image among the plurality of cross sectional surface images; a gaze tracking unit for tracking the gaze of a user with respect to at least one cross sectional surface image displayed on the screen, and measuring a location coordinate value of the gaze on a preset cycle so as to acquire a plurality of gaze screen coordinate point sets, which are a group of movement path coordinates of the gaze; a region of interest extraction unit for acquiring a voxel list according to the frequency represented by each of a plurality of voxels of the three-dimensional volume image corresponding to the gaze screen coordinate point sets, and enabling voxels adjacent to each other in the voxel list to be clustered so as to acquire voxel cluster sets, and re-group and select the voxel cluster sets by distance and size, thereby extracting a region of interest of the three-dimensional volume image; and a big data storage unit for receiving and storing the extracted region of interest.
APPARATUS AND METHOD FOR CONSTRUCTING BIG DATA DATABASE OF THREE-DIMENSIONAL VOLUME IMAGE