Supported by the National Natural Science Foundation of China(60911130513,60805004)
Software aging is a phenomenon observed in a software application executing continuous- ly for a long period of time, where the state of software degrades and leads to performance degrada- tion, hang/crash failures or...
Supported by the National Natural Science Foundation of China(60805004);the State Key Lab of Space Medicine Fundamen-tals and Application(SMFA09A16)
Gradient vector flow (GVF) is an effective external force for active contours, but its iso- tropic nature handicaps its performance. The recently proposed gradient vector flow in the normal direction (NGVF) is ani...