Abstract: This paper presents a method that provides an applicable device to obtain 3-Dinformation for a scene and to make 3-D description of the scene objects.It makes use of fuzzy entropy in a whole image as (?)lustering evaluation functionto obtain better region segmentation.We use moments and functions as the characteristies of the regions and form asymbol set to represent the contents of the image.The 3-D coordinates of each ele-ment(region)will be calculated through geometric relationships between stereoimage couple.According to these 3-D information of the elements in different space and time,one can get their 3-D moving statements by connecting 3-D statements of the ele-ments,we bring about 3-D detection and description.