Welcome to HPMug2oMmNrOfxWQHLiEksa6s0hFu9Ox348d7QefarYlaFR5ArkhOwm3Da1pmxmxCtenj1+6luWD#r#n+EPn9L6Ce+9onqnMlT+i! Today is

HPMug2oMmNrOfxWQHLiEksa6s0hFu9Ox348d7QefarYlaFR5ArkhOwm3Da1pmxmxCtenj1+6luWD#r#n+EPn9L6Ce+9onqnMlT+i ›› 2010, Vol. 26 ›› Issue (3): 32-35.DOI: 10.3969/j.issn.1009-0479.2010.03.008

Previous Articles     Next Articles

AnImprovedMountainclimbSearchingAlgorithm inAutofocusing

  

  1. 1.FacultyofElectricalandInformationEngineering,YunnanUniversityofNationalities,Kunming650500,China;
    2.KunmingPhysicsResearchInstitute,Kunming650223,China
  • Online:2010-05-30 Published:2010-05-30

Abstract: Akeyissueoftheimageautofocusingmethodistheselectionofthefocusingevaluationfunction.Theprocedureofautofocusingistogetthemaximumofthefocusingevaluationfunction.Ordinarymountainclimbsearchingalgorithmisapttobedisturbedbylocalextremum.Tosolvethisproblem,animprovedmountainclimbsearchingalgorithmisproposed.Thisarithmeticiseffectivelyavoidthedisturbancebyusingthreeconsecutivechangesofthefocusingevaluationfunctionasthecriteriontoconfirmthefocusingdirection.

Key words: autofocusing, imageresolution, focusingevaluationfunction, mountainclimbsearchingalgorithm

CLC Number: