中文摘要：

Meng Gang Born in 1982, he received his B.S. and M.S. degrees from South China University of Technology, in 2004 and 2007, respectively. He is now a Ph.D. candidate in Beijing University of Aeronautics and Astronautics, China. His research interests include image processing, pattern recognition, machine learning and embedded system. E-mail： menggangmark@ 126.com Jiang Zhiguo Born in 1965, he is a professor at Beijing University of Aeronautics and Astronautics, China. He currently serves as a standing member of the Executive Council of China Society of Image and Graphics and also a member of the Executive Council of Chinese Society of Astronautics. He is an Editor of Chinese Journal of Stereology and Image Analysis. Corresponding author. Tel.： ＋86-10-82338061. E-mail address： jiangzg@buaa.edu.cn Liu Zhengyi Born in 1986, he received his B.S. degree from the School of Electronic and Information Engineering, Xi＇an Jiaotong University, Xi＇an, China in 2008. He is currently working towards his M.S. degree at School of Astronautics, Beijing University of Aeronautics and Astronautics, Beijing, China. His research interests include image processing and pattern recognition. E-mail： lsticklll@gmail.com