???FAM??

1
??? ????????

• ???????
• ? ????
• ????????

2
??? ????????

• ???????
• ???????
• ???????
• ???????
• ???FAM??
• ????
• ?????
• ????

3
?????????

• ????????
• ???????????????????,??????????????????
• ??High-definition television(HDTV) system
  have
• reinvigorated the image-coding
  field.
• ????????
• ?????????????,?????????????

4
?????????

• ????
• ????
• ????
• ????
• ??????

5
?????????

• ??????????????????,????????????
• ???????????(Pulse Code
• Modulation,??PCM)????(Entropy
• Coding)?????(Run Length
• Coding)??????(Bit Plane Coding)?

6
?????????

• ??????????????????,??????(????)????,?????????????
  ??????
• ?????????(Delta Modulation,
• ??DM)?????????(Differential
• Pulse Code Modulation,??DPCM)?

7
?????????

• ????????????????????(???)?,??????????????????
• ????????????(DFT)???????(DCT)???????(DWT)?

8
?????????

• ?????????
• ????
• ????(Vector Quantize,??VQ)??
• ??(Fractal)??
• ????(Object-Based)???
• ????(Model-Based)???

9
?????????

• 1?????????????

X
channel
DCT
Coding
Decoding
Subimage Classification
Block diagram of adaptive cosine transform coding
10
1????????????

• (1)????256x256????????16x16????,??
• ?256????,???????????????(DCT)
• ??????????????

??c(0)1/ ,c(k)1 for k1,2.N-1
11
1????????????

• (2)??????DC???AC??
• DC energy
• AC energy
• DC???????????
• AC????????????
• ??,??AC?????????????????,
• ??,????????,??????????

12
1????????????

• (3)?256????????
• ????????????????AC?
• ?,???????,?????64???
• ????AC??????????????
• ???,??,????????,???
• ???????

13
?????????

• 2???????FAM??
• (1)????256x256????????16x16????,
• ???256????,?????????????
• ??(DCT)
• (2)??????AC???T?AC?????L

14
2???????FAM??

• (3)???FAM??????????????
• ????????????FAM???
• ???????T?L
• T??AC????,????4???
• BG,MD,SL?VS?
• L??AC?????,??2???SM?LG?
• ?????B ??4??? HI,MH,ML?LO?

15
?????????????AC????????,???????????????
Fuzzy-set values of fuzzy variables T, L, and B.
16
????????? ? ,?????? ???????????????????

• ????????(DCL)?????,?????
• ????????,????FAM??
• ?????????,???????????????????????
• ????,???????????DCL??
• if the th
  neuron wins
• 
  if the th neuron loses

,
17
?????,??FAM??

• ??????????????????256???????,????DCL??????,???????
  5?FAM??(1,2,6,7?8),?????????3,4,5???????

FAM-rule bank for the fuzzy subimage
classification.
18
2???????FAM??

• (4)??????FAM??,?????????
• ???????????????????
• ??????????? ??????
• ????????????
• ??????????????????,
• ??B????????????????
• ??,???????????

19
??????
FAM Rule 1
FAM Rule 2
???
FAM Rule m
FAM ??
20
2???????FAM??

• (5)??????????????,?????
• ????????4?????????,?
• ????????????
• ????
• AC????,?????????????
• ?????????, DCT??????
• ?,?????????????

21
3?????

• ???????????????????

• ?? ?????????????

22
3?????

• ???????bits/pixel R

????????????? N???????
23
3?????

• ?????FAM????????????????????????,FAM??????????????
  ?
• ?????Lena ???????????FAM??,?F-16?????????,????????
  ?? 0.5 bits / pixel?,???????

24
3?????

• FAM?????????????????

25
4??????

• FAM??????????????????????????,FAM???????????????
• ???,?????????????????????????????????

26
??????

• Chen,W.H.,and Smith,C.H.,Adaptive Coding of
  Monochrome and Color Images,IEEE Transaction on
  communications,vol .COM-25,no.11,1285-1292,
• November 1997
• Jain, A.K. Image Data Compression A review,
• Proceedings of the IEEE. Vol.
  69,no.3,349-389,March 1981.
• Netravali,A.N.,and Limb,J.O..Picture CodingA
  review,
• Proceedings of the IEEE,vol.68,no.3,366-406,Ma
  rch 1980.

27

• ? ?!
• ????????