Computational Imaging Systems: From DiffuserCam to Neural Activity Tracking - Seminar 2

Computational Imaging Systems: From DiffuserCam to Neural Activity Tracking - Seminar 2

IEEE Signal Processing Society via YouTube Direct link

Deep learning based reconstruction

28 of 31

28 of 31

Deep learning based reconstruction

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Computational Imaging Systems: From DiffuserCam to Neural Activity Tracking - Seminar 2

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  1. 1 Intro
  2. 2 Computational Imaging Systems
  3. 3 Computational imaging pipeline
  4. 4 Lenses map points to points
  5. 5 Mask-based cameras multiplex
  6. 6 DiffuserCam: stick a scatterer on a sensor
  7. 7 Traditional cameras take direct measurements
  8. 8 Computational cameras can multiplex
  9. 9 DiffuserCam forward model is a convolution
  10. 10 Video from stills with rolling shutter
  11. 11 Point spread function shifts and scales with posit
  12. 12 Single-shot 3D is difficult
  13. 13 Compressed sensing to the rescue! solves under-determined problems via a sparsity prior
  14. 14 3D neural activity tracking
  15. 15 Neural activity tracking with flat DiffuserScope
  16. 16 Improved diffuser for low light
  17. 17 Keeping the objective lens is good
  18. 18 Resolution is more uniform
  19. 19 Tiny microscope version
  20. 20 Single focal length MLA
  21. 21 Multi-focal length MLA
  22. 22 Challenge: object-dependent resolution
  23. 23 Solution?: use condition number of sub-proble
  24. 24 Challenge #2: model mis-match
  25. 25 Solution #2: Local convolution model
  26. 26 Image reconstruction is nonlinear optimizatior
  27. 27 Physics-based image reconstruction
  28. 28 Deep learning based reconstruction
  29. 29 Inverse Problem Philosophies
  30. 30 Unrolled physics-based algorithm makes efficient ne
  31. 31 Physics-based learning improves speed + quali

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