Display device with three-dimensional image display function and three-dimensional image display method

A display device having a three-dimensional image display function, the display device comprising:

• a processor, configured to obtain first volume data and respectively define a plurality of coordinates of a plurality of voxels in the first volume data in a display device coordinate system to generate second volume data;
• and
• a sensor, coupled to the processor and configured to obtain two first eye coordinates,
• wherein the processor converts the two first eye coordinates to the display device coordinate system to generate two second eye coordinates and calculates a plurality of ray paths corresponding to a plurality of pixels of the display device,
• wherein the processor matches the plurality of ray paths with the two second eye coordinates to determine a plurality of ray casting paths and determines a plurality of sampling data corresponding to the plurality of pixels according to the second volume data and the plurality of ray casting paths to generate display data.