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Filmrestoratin using extended ACE Jon Anders Øvern.

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Presentation on theme: "Filmrestoratin using extended ACE Jon Anders Øvern."— Presentation transcript:

1 Filmrestoratin using extended ACE Jon Anders Øvern

2 Introduction Restoration of old film

3 Introduction Restoration of old film using ACE (Automatic Equilization Algorithm)

4 Introduction Restoration of old film using ACE (Automatic Equilization Algorithm) Form and implement extension

5 Introduction Restoration of old film using ACE (Automatic Equilization Algorithm) Form and implement extension Experiment and quality analysis

6 Film restoration Old, faded films Cannot be restored chemically Highly automated digital restoration algortithm wanted

7 Human Visual System Aquisition and interpretation of light Eye / vortex

8 Human Visual System Adaption mechanics WP GW

9 Color correction algorithms Algortihms mimic some properties of the HVS to improve images Global Retinex, global/local WP algorithm

10 ACE General properties

11 ACE Difference / non-linear function

12 ACE Weighting function

13 ACE Display mapping

14 ACE My contribution: Inter-frame considersation Non-linear mapping function to avoid edges in the image

15 ACE in film restoration Flickering Interframe consideration to reduce flickering

16 Non-linear mapping

17 Experiment Setup / material

18 Experiment Results : La Rochelle

19 Experiment Results : Fire and Police

20 Experiment Results : Syntheic

21 Experiment Results : Non-linear mapping

22 Conclusion ACE extension works

23 Future work

24 Thanks to : Ivar Farup Jon Yngve Hardeberg Alessandro Rizzi Carlo Gatta


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