作者机构:[1]College of Computer Science and Technology, Zhejiang University, Hangzhou 310027, China, [2]Beijing Key Lab of Medical Physics and Engineering, Peking University, Beijing 100871, China, [3]Beijing Healthway Technology Limited Company, Beijing 100084, China
相关基金:Project supported by the National Basic Research Program of China (Grant No. 2011CB707701), the National Natural Sci- ence Foundation of China (Grant No. 60873124), the Joint Research Foundation of Beijing Education Committee (Grant No. JD100010607), the International Science and Technology Supporting Programme (Grant No. 2008BAH26B00), and the Zhejiang Service Robot Key Laboratory (Grant No. 2008E10004).