| Biomedicine is one of the ndve aPPlication fields of imageNssbe' MboPuaton of various medicine piCtUrs WthCOInPUfor helps doctors faCilitate quick and acCUrate analysis,tois and treatmen.at the teChnology key of cOInPUter SysteIn forwtoncs diWsis and nden, thes thesis discusses hoWtO W contour line and cePhalometric landInall of Xrayfilm in Orthedoncs wdri the helP of comPUter First, graywt wtology is emPloyed tO enlarg gray cond andiWe the quality of driage. Then, multiPlicate edge detectionalgorithms are used to ethe the edge featUr. Finally,mathematics methods of shortest path and smoothin sPline areaPPlied to accomPlish the descriPtion of contoUr line andcePhalometric landmarks. |
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