The method due to this invention is formed in order to segment the surface in the multidimensional data set which includes the plural pictures. Using appropriate data acquisition unit in preparation step 2, can the plural pictures, be acquired. As for data processing step and data acquisition step, timewise or it is possible, to be separated geographically, it is possible, for the result of appropriate data segmentation step 6 to be accessed consequently in step 4, the aforementioned result, using the method of this invention, includes the part of the picture which is used afterwards in order to segment the surface. Next, the appropriate plural picture features which have been similar to the possible spatial position of the surface where being segmented in step 8, is planned are selected, are accessed. Feature is matched concerning all picture parts after that, in step, 10 can allot each every feature, matching error. In step 14, feature of the maximum approved variable ratio which possesses the largest matching error which the selective factor which is stipulated beforehand can be accessed, thrown away is stipulated. Segmentation of the surface which is required is executed in step 16, the feature which is thrown away is not considered in order to appraise the quality of conformity of candidacy deformation of the surface. The surface which can as the result is indicated in appropriate indicatory expedient in step 18, for user analysis, is piled up to the original especially diagnostic data ideally. When the user, it is satisfied with the result of segmentation, the surface which is segmented is remembered in step 18. So, when is not, process is reset by step 14, the other selective factor is accessed. As for the other selective factor, in step 11, it is possible, to be modified by user input, it is possible to be offered or as an alternative example, by ru modification algorithm 13. This invention, furthermore, the system and the computer program, the work statio