Lee, M.-E.M.-E.LeeChen, C.-F.C.-F.ChenLin, T.-N.T.-N.LinChen, C.-N.C.-N.ChenTSUNG-NAN LIN2018-09-102018-09-102009http://www.scopus.com/inward/record.url?eid=2-s2.0-70349283455&partnerID=MN8TOARShttp://scholars.lib.ntu.edu.tw/handle/123456789/350451The application of discrete cosine transform (DCT) combined with the nonlinear regression routine on optical auto-focusingconference paper10.1109/ICCE.2009.5012369