X3D auto-stereoscopic display needs 8 views as its input video signals so that the user can watch stereoscopic scenes from different angles within a certain range. An auto-stereoscopic display oriented stereoscopic video coding method is proposed, in which the disparity map is generated and compressed at the encoder to lower down the requirement to the user side. By using the decoded disparity map, 6 intermediate views can be easily and quickly rendered at the user side, and the stereoscopic video can be displayed on auto-stereoscopic terminal with multi angles of view. Global filtering and non-edge region filtering are employed to smooth the disparity map. Experimental results show that compared with un-smoothed disparity map, the rate-distortion performance can be improved by the proposed scheme with smoothed disparity map.