STEREO IMAGE DEPTH MAP GENERATION DEVICE AND METHOD

A stereo image depth map generation device that includes a depth calculation module, a first order bilateral filter module and a second order bilateral filter module is provided. The depth calculation module receives a reference image including a plurality of reference pixels and a target image including a plurality of target pixels to generate an initial depth map according to pixel differences of the reference pixels and the target pixels. The first order bilateral filter module receives the initial depth map to perform a first order bilateral filtering calculation according to the initial depth map and the initial depth map itself to generate an averaged depth map. The second order bilateral filter module receives the averaged depth map and the target image to perform a second order bilateral filtering calculation according to the averaged depth map and the target image to generate a refined depth map.