?a???s?as? ??. 1

1
??f?a?? ?pe?e??as?a ?a? ?????s?
?????a???ad?µa??? ?t?? 2009-10

• ?a???s?as? ??. 1
• ??sa????

2
??a e????a a???e? ?s? ????e? ???e??

• 
  
• Se ???e pe??pt?s?, e??a? p??fa??? ?t? ?? e????e?
  ????? s?µa?t??? ??s? st? ??? t?? a????p??, ??at?
  µe a?t??
• Se at?µ??? ep?ped?
• ???e?ta?, s??fteta?, e?e??e?, d?as?ed??e? ?.?p.
• Se ????????? ep?ped?
• ???µe???eta?, ep???????e?, ?.?p.
• St?? e??as?a
• ????e? s?µpe??sµata, ?.?p.
• ?? e? ???? ???????? ??t? ?s??e? ??t?? ? ?????
  (p???t??? ade?a).
• S?????a ?µ?? ?s??e? ?a? ap? t? s??p?? t??
  Te???a? ?????f???a?.

3
?pa?te?ta? e?e?d??e?µ???? ???d?? st?? p????f?????
??at? ...

• ? ????? ?pt???? p????f????? e??a? te??st???
• ?p?d?t??? ap????e?s? ?/?a? µet?d?s?
• ?p?d?t???? a??????µ?? epe?e??as?a? ?a? a????s??
• ? e?a???? s?µpe?asµ?t?? se efa?µ???? apa?te?
• ?a??t?ta
• ????p?st?a

?d?a?te??t?ta ?? ??se?? p?? d????ta? s????
????? ?a?a?t??a ad hoc
4
???aµ??? a??pt??? t?? ???? ta te?e?ta?a ?????a

• S??te?est?? t?? a??pt????
• ???pt??? ap?d?t???? te?????? epe?e??as?a? ?a?
  a????s??
• ??a?es?µ?t?ta f????? ?a? ?s????? ?p?????st????
  e??p??sµ??
• S?µa?t??? p???d?? st?? te???????e? t?? s?st?µ?t??
  p??s????? (?ata??af??) t?? e??????
• S??e??? a??de??? ???? efa?µ????

5
?? e??a? ? e????a

• ?t?d?p?te µp????µe ?a d??µe ? ?a ape?????s??µe
• ?.?. ??a e????a t?p??? a??? ?a? ? ape?????s? t??
  ap????f?s?? a?t???ß???a? st?? a?t?????af?e?, ?
  ape?????s? t?? ta?a?t?se?? t?? at?µ?? ? se MRI
  ?.?p.
• ??a d?sd??stat? s?µa

6
??f?a?? epe?e??as?a e??????

• ??a s?st?µa epe?e??as?a? e?????? ...
• ?ata???fe? e????e? (µ?a p??? µ?a ?/?a? a???????a)
  
• ?pe?e????eta? e????e? µe ??f?a?? t??p?
• ????e? ??e? e????e?
• ?a?ade??µata epe?e??as??? e??????
• ?e?t??s? p???t?ta?
• F??t????sµa ????ß??
• ?p??at?stas? ?p?ßa?µ?sµ???? e??????
• S?µp?es?
• ??a?atas?e?? ap? p??ß????
• ?dat????f?s?

7
??f?a?? a????s? e??????

• ??a s?st?µa a????s?? e??????
• ?aµß??e? e????e?
• ?e?????fe? ?a? a?a??????e? t? pe??e??µe?? t???
• ????e? pe????af??
• ???spa?e? ?a µ?µ??e? t?? a????p??? ??as?
  (f???d??? !!!)
• ???s?µ?p??e?ta? ?????? se e?e?d??e?µ??e?
  efa?µ???? (ß??µ??a??a, ?at????, ?e?????a, ????s?
  ???µat?? ?.?p.) a??? ?d? s??a?t?µe ?a? p?????
  efa?µ???? t?? ?a??µe????? ???? (face detection,
  OCR, Google Earth, )

8
S?et???? ?p?st?µ?????? pe?????? (1/2)

• ??f?a?? epe?e??as?a s?µat??
• ? e????a e??a? d?sd??stat? s?µa
• Te???a ?a? te?????? epe?e??as?a?
• ??a?????s? p??t?p??
• ?at??????p???s? a?t??e?µ???? p?? ape????????ta?
  se e????e?
• G?af???
• ??f?a?? s???es? e????a? ap? s?µß????? pe????af?

9
S?et???? ?p?st?µ?????? pe?????? (2/2)

• ?e???t? ???µ?s???
• ??µ??e?a e????a? ap? µ??a?? (te?????? µ??a?????
  µ???s?? ??a a????s? e????a?)
• ?p????????e?, ??ad??t??
• ?p?d?t??? ???s? t??ep????????a??? p????
  (??d???p???s?)
• ???stas?a d??a??µ?t?? (watermarking)
• ??se?? ded?µ????
• ?p????e?s? (epe?e??as?a e????a?)
• ????t?s? (a????s? e????a?)

10
S??s? e????a? - pe????af??
11
?e?????? ??f?a??? epe?e??as?a? ?a? a????s??
e????a? (1/6)

• 2-D s?µata ?a? s?st?µata
• ?as???? ?????e?
• ?d??t?te? 2-D s?st?µ?t??
• ?etas??µat?sµ?? (DFT, DCT, Hadamard ?.?p.)
• F?s??? s?µas?a t?? ped??? s????t?t??
• ?e??µat?????a ?a? ??f??p???s?
• Te???a ?a? µ???d?? de??µat?????a? ?a? ?ßa?t?sµ??
• ?d?a?te??t?te?

12
?e?????? ??f?a??? epe?e??as?a? ?a? a????s??
e????a? (2/6)

• ?ata??af? e????a?
• ???ß??µata st? d?ad??as?a p??s?????-?ata??af??
• ?a?aµ??f?se??
• T?µp?µa
• T???ß?? ?ata??af??
• Ge?µet????? pa?aµ??f?se??
• ?? s?st?µa t?? ?????p???? ??as??
• ??apa??stas? ?a? µ??te??p???s?
• ????????a ep??tas? se e????e? ß?s??
• St??ast??? / Ge?µet???? ???t??a

13
?e?????? ??f?a??? epe?e??as?a? ?a? a????s??
e????a? (3/6)

• ?e?t??s? e????a?
• ?.?. ße?t??s? a?t??es?? / ?e?d????µat?sµ?? ??p
• St?d?? p?? p????e?ta? t?? epe?e??as??? ??????
  ep?p?d??
• ? te????? ap?d??t?? µp??e? ?a e??a? ? ?????p?? ?
  ? µ??a??
• Ge???? ? st???? e??a? ?p??e?µe?????
• ?p??at?stas? e????a?
• ?????a F, s?st?µa H, ???? e????a? FH, st???? ? F
• ?.?. a?t?µet?p?s? ????µat?? / µe??s? ????ß?? /
  a?a??es? t?? ?p?ß??µ?s?? ???? ????s?? ??p.
• ? st???? e??a? a?t??e?µe?????.

14
?e?????? ??f?a??? epe?e??as?a? ?a? a????s??
e????a? (4/6)

• S?µp?es?
• ? ????? t?? 2-D ? 3-D ded?µ???? e??a? te??st???
• ????? ap??e?e? µet? t?? ap?s?µp?es? (p.?.
  ?at????? efa?µ????, ???a t?????, ?st?????
  ?t????µ??ta)
• ?e ap??e?e? (p.?. st?? p???µes???? efa?µ????)
• ??a?atas?e?? ap? p??ß????
• ?pe?????s? f?s???? ?d??t?t?? t?? es?te?????
  ste?e?? s?µ?t?? (p.?. st?? a?????? t?µ???af?a,
  MRI )
• ?fa?µ???? se ?at????, ???µ??a??a, Ge?????a ??p.

15
?e?????? ??f?a??? epe?e??as?a? ?a? a????s??
e????a? (5/6)

• Ge?µet???? pe????af? 3-D s?µ?t??
• ??s?d?? ?????e? t?? ste?e?? a?t??e?µ???? ap?
  d?af??et???? ?pt???? ????e?
• ???d?? Ge?µet???? pe????af?
• Ste?e?s??p??? ??as?
• ????t?s? ß?????, e?t?µ?s? ????µat???? pa?aµ?t???,
  ep?s??p?s? ep?fa?e???, p?????s? ?.?.p.
• ?pe?e??as?a ?????µ?? e??????
• ?d?a?te??t?te?
• Te???a ???µat?? / ????fasµat???? ?????e?

16
?e?????? ??f?a??? epe?e??as?a? ?a? a????s??
e????a? (6/6)

• ?p? t?? ?pe?e??as?a st?? ?????s?
• ??a?????s? ?e????aµµ?t??
• ?at?tµ?s? / ??????t?s? ?e??????
• ?????s? ?f??
• ?e????af? S??µat?? / ??t??e?µ????
• ?pe?e??as?a ?a? ?????s? ????????a? ???????
• S?µp?es? (?d?a?te??t?te?)
• ??a?????s? ?????µ???? ??t??e?µ????
• ???e? pe?????? ?.?. ?dat????f?s?, ????t?s?
  ?????f???a? ??p.