- Then,theimagegreylevelofeverysubimageisapproximatedbylow-orderpolynomialaccordingtoleast-squarecriterion.Firstly,wecoarselydetectthefeatureimageobtainedfromsubimageblocks,thetargetregionsareidentifiedaccordingtopriorknowledge.Accordingtothedegradedim...
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