The first group includes countries that have had an overall good performance since 2006 (above the median) and are moving ahead rapidly.
第一类包括2006年以来整体表现比较好(中等以上)、而且进步较快的国家。
2
Then the methods of normalizing MV, weighted extended vector median (WEVM) filter on the MV fields and the existent segmentation results projection were utilized to obtain the moving mask of object.