STEREO MATCHING DEVICE AND METHOD FOR DETERMINING CONCAVE BLOCK AND CONVEX BLOCK

A stereo matching device used in a stereoscopic display system for determining a concave block and a convex block is provided. The stereo matching device comprises a receiving module for receiving a first and a second view-angle frames, a computation module, a feature extraction module and an estimation module. The computation module generates a disparity map having disparity entries respectively corresponding to blocks of the first view-angle frame. The feature extraction module generates feature maps each having feature entries respectively corresponding to the blocks. The estimation module comprises a reliability computation unit for computing a feature reliability of each of the blocks based on the feature maps and a comparator unit for filtering out unqualified blocks according to at least one reliability threshold to generate a plurality of candidate blocks and further determining the concave block and the convex block.