?url_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Abook&rft.au=Ghita%2C+Ovidiu&rft.aulast=Ghita&rft.aufirst=Ovidiu&rft.date=09+September+1999&rft.title=Real+time+3-D+estimation+using+depth+from+defocus&rft.btitle=Porceedings+Irish+Machine+Vision+and+Image+Processing+Conference+1999&rft.genre=proceeding