S asa st pet a t S ea

1
????? ??????S????????as?a st? ?p???e?t???
µ???µa t?? S? e?aµ????

• ??F????S ??????T???S
• ?p?ß??p?? ?a????t?? S. ?ap?d????
• ??????? ?????a
• ????a ??????tsa

2
Stanford University

• Trusted Image Dissemination
• Image Filtering for Secure Distribution of
  Medical Information

3
HTTP//www.dli2.nsf.gov
?? project p?a?µat?p??????e ?p? t?? a???da ?a? µe
p??t?ß????a t?? NSF Digital Library II. ?a?
s??d?eta? µe t?? ?e????te?? ??e??a p?? ???eta? ta
te?e?ta?a ?????a ?? p??? t?? eµf???s? ?a? t??
a?a??t?s? ded?µ???? µe µ??f? e????a?, p?? e??a?
ap????e?µ??e? se on-line ??f?a??? ??ß??????e?. ?
p??t?ß????a a?t? pa???e? ?p?st????? st?? ??e??a
??a ?a a?apt??e? t?? ??f?a??? ß?ß??????e?
ep?µe??? ?e????, ??a ?a p?????se? t? ???s? ?a? t?
d??at?t?ta ???s?µ?p???s?? t?? s???????
d?a?eµ?µ???? st? d?ad??t?? p???? p????f???s??,
?a? ??a ?a ???s?µ?p??????? ?a???t?µe? efa?µ????.
4
Ge????

• ?a?ep?st?µ?? Stanford, California
• ??e???t??? p?????µµata -????at????
• Biomedical Information Technology
• ?µ?da e?d???? st?? ß?se?? ded?µ????
• Image Filtering for Secure Distribution of
  Medical Information
• ?????aµµa F??t?a??sµat?? ?????a? ??a t?? ?sfa??
  ??a??µ? t?? ?at????? ?????f?????

G?? ????SS?????S ?????F????S...
Gio Wiederhold,ep??efa??? t?? e?e???t???? ?µ?da?
?a? ?a????t?? ?????f??????, ?at????? ?a?
??e?t????? ?fa?µ?sµ???? ???a????? t??
?a?ep?st?µ??? t?? Stanford gio_at_cs.stanford.edu
5
Ge???? t? Project
??????? Stanford University ??aße?a NSF
ß?aße??, 18 Septeµß???? 1998
DLI-2 Awards-9/8/99 ?????aµµa Digital Library II
(DL II) ??e????t?? ??????µµat?? Stefen
Griffin ?µe??µ???a ??a???? 1 ?a???a????
1999 ?µe??µ???a ????? 30 Septeµß???? 2003 (?at
e?t?µ?s?) ??aµe??µe?? s??????? ??st?? 519,594
(?at e?t?µ?s?)
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?????d????aµµa ??st??

• ??a??? 1 ?a???a???? 1999
• ???? 30 Septeµß???? 2003
• ??st?? 519,594

G?? ????SS?????S ?????F????S...
??e????t?? t?? p?????µµat?? Stefen Griffin
7
????????S

• ?p??efa??? e?e???t?? Gio Wiederhold(gio_at_cs.stanfo
  rd.edu)
• ??e???t?? Michel Bilello (michel_at_cs.stanford.edu)
  
• James Z. Wang
  (wangz_at_db.stanford.edu)
• Jia Li (jiali_at_db.stanford.edu)
  
• F??t?t?? David Liu (Davidliu_at_stanford.edu)

8
Ge????

• ? pa?ap??? ?µ?da e?e???t?? e?e???,
  pa???s???e? ?a? e?et??e? t?? d??at?t?te?
  f??t?a??sµat?? e????a? ?ste ?a p??sf????? ??????
  t??p??? e?????? t?? d???es?? t?? ?at?????
  ded?µ???? se ?t?µa ?a? ???a??se?? p?? de? ?????
  ?µes? s??s? µe t?? ??e????µ??? pe???a???.
• S???e???µ??a t? p????aµµa TID est???e? st??
  p????f???e? p?? ß??s???ta? µ?sa st?? e????e? p??
  e??a? µ???? e??? ??e?t??????? ?at????? a??e???.
• ? p??????µe?? e??as?a t??? (TIHI) e??e
  est??se? st?? p??stas?a t?? p????f???a??? ??????
  p?? ß??s?eta? se ?e?µe??.

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St???? t?? Project

• ? asfa??? d?a??µ? ?at????? p????f????? p???µ?s??
• ?????a ?a? ?e?µe??
• ?p?f??? t?? pa?aß??se?? t?? asf??e?a? ?a? t??
  ?d??t???t?ta? t?? ded?µ????

10
Ge????

• ?? f??t????sµa t?? e?????? se s??s? µe t?
  ?e?µe?? ???eta? pe??ss?te?? apa?a?t?t? ?a??? ??
  ??e? te???????e? ?a? t??ep????????e? d?e?????????
  t? ???s? t?? p????f????? se µ??f? e????a?.
• ??t? t? p????aµµa ep???µe? ?a d?se?
  d??at?t?te? f??t?a??sµat?? e????a? ??a ?a
  s?µp???????? ?a? ???a µ?sa st?? ??e??? t??
  pe??e??µ???? t?? ded?µ????.
• ????e?ta? ??a t?? ?at????? e????e? p??
  ???s?µ?p?????ta? st?? d?????s? ?a? t?? ??e??a,
  ?a??? ?a? ??a ???a ded?µ??a ??a ta ?p??a ?a ?ta?
  ep???µ?t? ?a ap?fe?????? ?? pa?aß??se?? t??
  asf??e?a? ?a? t?? ?d??t???t?ta?.
• ?? ????? a?t??e?µe?? e?d?af????t?? e??a? ta
  ??e?t?????? ?at???? a??e?a

µp??e? ?a efa?µ?ste? ?a? se ?????? t?µe??
11
Ge????

• ?????a ?a? a??a??µe?? p????? p????f????? s?µe?a
  d?aß?ß??eta? µ?s? t?? ??ad??t??? - se µ??f?
  e????a?.
• ??t? ? t?s? ?a ??e? s?????a ep?pt?se?? st??
  ?at????? e????e? (p?? ???s?µ?p?????ta? st?
  d?????s? ? t?? ??e??a) st? e???? µ?????.
• ??t??e? p????f???e? de? ????? ?p?ß???e? se
  epe?e??as?a st? pa?e???? p?? ?a ??e? ??ße? ?p????
  t?? t?? asf??e?a ? t?? ?d??t???t?t? t???.
• ? ??e???? ??a t?? ?d??t???t?ta ?a? t?? asf??e?a
  t?? p????f???a??? ?????? p?? ß??s?eta? se ?e?µe?a
  e??a? ap? ?a??? a?t??e?µe?? e?e???t????
  d?ast????t?t??
• ?? e????e? pa???s?????? ??a ?a? ?eµ?ta p?????se??
  p??ß??µata.
• ??se?? ded?µ???? e????a?
• ???stas?a t?? ?d??t???t?ta? t?? p????f????? st??
  ?at????? ß?se?? ded?µ????

12
?????e? ?p??
13
?????e? ?p??
14
?e???????a

• Wavelet te???????a
• ??a??t?ta e??et???as?? ?a? a???t?s??
  e?????? µe t?? wavelet a????s? µetat??p??
• (wavelet transform analysis)
• ? wavelet p??s????s? ??e? ap?de???e? ???????
  ?a? ?d?a?te?a a???p?st?. ?a???e? sta?e??t?ta st??
  a?t?µet?p?s? pe??ss?te??? e?d???? p??se???se??,
  ?a? e??a? ep?s?? e????? ?a µetafe??e? µeta??
  p????aµµat?sµ?? ???ss?? (programming languages).

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?e???????a

• ???pt??? t?? ?pa??t?? a??????µ?? p??
  est?????? st?? ?d??t?te? t?? ?e?µ???? p?? ?p???e?
  µ?sa st?? e????e?.
• ?sfa??? µetaf??? ??e?t??????? ?at?????
  p????f?????
• µ?s? t?? ??ad??t???
• ?e??aµat?sµ?? µe d??f??a e??a?e?a, ta
  pe??ss?te?a ap? ta ?p??a e??a? ßas?sµ??a se
  parametarized wavelets ta ?p??a µp????? ?a
  a?a?????s??? t? ?e?µe?? µ?sa st?? e????e?, ?a? ?a
  t? ?p?ß?????? st??? ?a???e? e?????? t??
  p????f???e? t?? pe??e??µ???? t?? ?e?µ????
• ??sa???? t?? ?e???????a? ?pt???? ??a?????s??
  ?a?a?t??a
• (Optical Character Recognition OCR)

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?p???aµµat???

• ?? s???e???µ??? p????aµµa s?et??? µe t?? asf??e?a
  ?a? t?? ?d??t???t?ta t?? e?????? pe???aµß??e?
• ???sd????sµ? t?? ?e?µe????? s?µad??? ?pa???? ?a?
  ??s?? st?? a?t??e? ? ?a? ???e? ?at????? e????e?.
• ??a?????s? t?? ??µµat??? µe ?e?µe?? ?a?
  ta????sµat?? t??? µe t??? ?a???e? p??stas?a? t??
  ?d??t???t?ta?.
• ?fa??es? t?? s?µad??? t?? ?e?µ???? p?? de?
  a?a????????ta? ?? releasable ap? t?? ?at?????
  e????e?.
• ?a???? ?p??es??? f??t?a??sµat?? e?????? µ?sa st?
  p?a?s?? µ?a? a???te?t?????? µes??aß?t? asfa?e?a?.
• ? te???????a epe?e??as?a? e????a? e??a?
  ßas?sµ??? st?? e?a???? ?a?a?t???st????
  ?????sµ?t?? p?? ???s?µ?p??e? t?? wavelet
  ap?s???es?, t?? st??µ?? µ??f??, ?a? t? s??des?
  t?? s?µas???????? s?et???? pa?aµ?t??? a?t??????
  µe ta ?a?a?t???st??? ?????sµata.
• ? e?e???t??? p??sp??e?a ??e? est??se? st??
  a??pt??? pe?a?t??? wavelet a??????µ?? ??a t??
  ?at????? ß?se?? ded?µ???? e????a? ?a? t??
  s?et???? p????f???e? ap? t?? ?at????? ß?se??
  ded?µ???? p???µ?s??, t?? e?a???? ?e?µe?????
  p????f????? ap? t?? e????e?, t?? p?????s? t??
  p?a?t???? ??a t?? p??stas?a t?? ?d??t???t?ta? ?a?
  t?? efa?µ??? e??? µes??aß?t? asf??e?a?,?
  e?e?e????ta? t?? d?epaf?? WWW ??a t???
  µes??aß?t?? asfa?e?a?.

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????te?t?????

• ????te?t????? p??t?p?
• ???a?e?? ????sµ????- µes??aß?t?? asfa?e?a?
  (security mediator).
• ?p?t??pe? st??? ??µ?µ??? e??te??????
  ???ste?-pe??te? ?a ap??t?s??? µa????? ??e?t??????
  p??sßas? st?? ?at????? p????f???e? p?? ß??s???ta?
  se ??a ?at???? ??st?t??t? ? ?d??µa.
• ?a?t?????a eµp?d??e? t?? d???es? t??
  pe??e??µ???? p?? de? µp??e? ?a d?ate?e?.
• ??a? t?t???? µes??aß?t?? asfa?e?a?
  t?p??ete?ta? ?a?a?t???st??? st?? a?t?p????? ????
  p?? pe??ß???e? t?? es?te????? d?ast????t?te? t??
  ß?se?? ded?µ???? t?? ?d??µat??.

18
????te?t?????

• S?ed?? ??e? ?? p??se???se?? ??a t?? asf??e?a
  est?????? st?? ??e??? t?? p??sßas??.
• ? ??e???? t?? p??sßas?? de? apa?te? µ??? µ?a
  t??e?a ??????s? t?? es?te????? st???e??? st??
  f???a, p???p???te? µ?a ?????? a?ad??????s? ????
  t?? es?te????? ?p??es??? p????f???s??.
• ?? ??st?? t?? ?a ß???e?? ??a ta ded?µ??a
  (es?te????) ?a s?µf???s??? µe t??? ?a???e?
  p??sßas?? (e??te?????) e??a? ??? µ??? dapa????
  ap? t?? ?p??? t?? s?st?µ?t??, a??? ?a? d?s????
  ?a? ??a ????? t??? ???ste? (es?te?????) t??
  p????f???a??? s?st?µ?t??, p?? t??a p??pe? ?a
  a??e???et?s??? ??a ta ded?µ??a s?µf??a µe a?t??
  t?? apa?t?se?? (e??te?????).

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??pa?de?s?

• ??a s?et??? se??? µa??µ?t?? d??eta? et?s??? st?
  ?e?µe???? e??µ??? st? ?a?ep?st?µ?? t?? Stanford

?????µ??? seµ?????? ß?se?? ded?µ???? e????a?
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S?µp????µat???

• ?ed?µ???? ?t? de? µp????µe ?a apa???e?s??µe
  t?? p??sßas? st?? s?et???? p????f???e? st???
  ??µ?µ??? s??e???te? p??se??????µe t? ??t?µa µ?s?
  t?? f??t?a??sµat?? t?? pe??e??µ????.
• ??a t?t??? f??t????sµa e??a? ßas?sµ??? se
  ??a a????t? s????? pa?aµ?t??? st? ?p???
  ?a?a?t???st??? s?µpe???aµß????ta?
• ? p??sd????sµ?? t?? a?t???t??
• ? ????? t?? a?t???t??
• ta d??a??µata p?? a?????? s a?t?? t?? ????
• ? ?????? ?a? ? t?p?? ?p?? t? a?t?µa e?d????e
  ?a? ?p?? ta ap?te??sµata p???e?ta? ?a
• pa?ad????? ?a?,
• ?? pa?????te? p?? µp????? ?a ?p????s??? t??
  a???µ?st? ???s?, ?? as?????ste?
• s????t?te? p??sßas??
• ?? f??t????sµa t?? e?????? se a?t??es? µe
  t? ?e?µe?? ?a??stata? apa?a?t?t?, ded?µ???? ?t?
  ?? ??e? te???????e? ????? d?e??????e? p??? t??
  ???s? t?? p????f????? se µ??f? e????a?. ????µe
  a?t?µet?p?se? p??ß??µata s?et??? µe t?? d??d?s?
  t?? ??e?t??????? ?at????? p????f????? ??a t??
  e?pa?de?s? p?? e??a? ßas?sµ??? st? web
  (t??e-e?pa?de?s?).

21
???????

• ?? project ß?aße?t??e ap? t? NSF (National
  Science Foundation )
• Projects p?? ????a? ?? tµ?µa t?? Digital
  Libraries Initiative Phase 2 ?at? t? ?t??
  1999.

22
?????S??S??S ??? PROJECT

• ?? ?????aµµa a?t? ??e? pa???s?aste? se s???d??a
  p?? ????? d????a???e? ta te?e?ta?a ?????a
• 12-13 ??????? 2000
• DLI All Projects Meeting
• 25-26 ?a?t??? 2002
• ??µ?, Consiglio Nationale delle Ricerche
• (?ta???? e????? e?e???t???
  S?µß?????)
• 1? s??ed??as? t?? EU/NSF s?et??? µe ??a ta
  projects p?? af????? t?? ??f?a??? ß?ß??????e?

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CENIC
?? Project ?p?st????eta? ?a? p??ß???eta? ap?
t?? eta???a CENIC. eta???a µ? ?e?d?s??p???
pa?ep?st?µ?a ?a??f????a S??p? ??e? ?a
d?e??????e? ?a? ?a s??t???se? t?? ep??tas?, t??
a??pt???, ?a? t? ?e?t?????a e??? s??????
p????µ???? ?p??es??? d??t???. HTTP//www.cenic.
org S?µf??a ???p?? µe t?? CENIC t? project e??a?
??a p????aµµa t? ?p??? e?e???, a?apt?sse? ?a?
e?et??e? t?? d??at?t?te? t?? f??t?a??sµat?? µe
s??p? ?a d?se? ???a µ?sa e?????? t?? p??sßas?? se
?at???? ded?µ??a se ?t?µa ?a? ???a??se?? p?? de?
????? ?µes? s??s? µe t?? ??e????µ??? pe???a???.
?? p????aµµa s?et??eta? µe p????f???e? p??
ß??s???ta? se e????e? p?? a?????? se ??e?t??????
?at???? a??e??.