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Build Your Own VR Display Course - SIGGRAPH 2017: Part 5

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Cinematic VR

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Build Your Own VR Display Course - SIGGRAPH 2017: Part 5

  1. 1. Build Your Own VR Display Panoramic Imaging and Cinematic VR Robert Konrad Stanford University stanford.edu/class/ee267/
  2. 2. Summary • overview • panoramic imaging • stereo / omnistereo panoramas • camera rigs
  3. 3. Jaunt VR
  4. 4. Lytro
  5. 5. Google
  6. 6. Nokia
  7. 7. Facebook
  8. 8. Red
  9. 9. Samsung
  10. 10. Panorama v Stereo Movie v Stereo Panorama
  11. 11. Panorama v Stereo Movie v Stereo Panorama Panorama mono & head rotation
  12. 12. Panorama v Stereo Movie v Stereo Panorama Panorama mono & head rotation
  13. 13. Panorama v Stereo Movie v Stereo Panorama Panorama mono & head rotation
  14. 14. Panorama v Stereo Movie v Stereo Panorama Panorama mono & head rotation
  15. 15. Panorama v Stereo Movie v Stereo Panorama Panorama mono & head rotation 1 center of projection!
  16. 16. Panorama v Stereo Movie v Stereo Panorama Panorama mono & head rotation 1 center of projection!
  17. 17. Panorama v Stereo Movie v Stereo Panorama Panorama mono & head rotation 1 center of projection! center of projection
  18. 18. Panoramas SlidesfromMarcLevoy’sexcellentCS178course
  19. 19. Panoramas SlidesfromMarcLevoy’sexcellentCS178course
  20. 20. Panoramas SlidesfromMarcLevoy’sexcellentCS178course
  21. 21. Panoramas SlidesfromMarcLevoy’sexcellentCS178course
  22. 22. Panoramas SlidesfromMarcLevoy’sexcellentCS178course
  23. 23. Panoramas SlidesfromMarcLevoy’sexcellentCS178course
  24. 24. Panoramas SlidesfromMarcLevoy’sexcellentCS178course
  25. 25. Panoramas SlidesfromMarcLevoy’sexcellentCS178course
  26. 26. Panoramas SlidesfromMarcLevoy’sexcellentCS178course
  27. 27. Panoramas SlidesfromMarcLevoy’sexcellentCS178course
  28. 28. Panoramas SlidesfromMarcLevoy’sexcellentCS178course
  29. 29. Panorama v Stereo Movie v Stereo Panorama Panorama mono & head rotation Stereo stereo & no head rotation Stereo Panorama stereo & head rotation 1 center of projection!
  30. 30. Panorama v Stereo Movie v Stereo Panorama Panorama mono & head rotation Stereo stereo & no head rotation Stereo Panorama stereo & head rotation 1 center of projection! 2 centers of projection!
  31. 31. Panorama v Stereo Movie v Stereo Panorama Panorama mono & head rotation Stereo stereo & no head rotation Stereo Panorama stereo & head rotation 1 center of projection! 2 centers of projection!
  32. 32. Panorama v Stereo Movie v Stereo Panorama Panorama mono & head rotation Stereo stereo & no head rotation Stereo Panorama stereo & head rotation 1 center of projection! 2 centers of projection!
  33. 33. Panorama v Stereo Movie v Stereo Panorama Panorama mono & head rotation Stereo stereo & no head rotation Stereo Panorama stereo & head rotation 1 center of projection! 2 centers of projection!
  34. 34. Panorama v Stereo Movie v Stereo Panorama Panorama mono & head rotation Stereo stereo & no head rotation Stereo Panorama stereo & head rotation 1 center of projection! 2 centers of projection!
  35. 35. Image courtesy of Google Jump
  36. 36. Panorama v Stereo Movie v Stereo Panorama Panorama mono & head rotation Stereo stereo & no head rotation Stereo Panorama stereo & head rotation 1 center of projection! 2 centers of projection!
  37. 37. Head Rotation could be IPD Inter Pupillary Distance sidebyHariLakshman(EE368)
  38. 38. Image courtesy of Google Jump
  39. 39. Panorama v Stereo Movie v Stereo Panorama Panorama mono & head rotation Stereo stereo & no head rotation Stereo Panorama stereo & head rotation 1 center of projection! 2 centers of projection! multiple centers of projection
  40. 40. Image courtesy of Google Jump
  41. 41. Image courtesy of Google Jump Store image pair for each direction  Problem: Too much data!!!
  42. 42. Image courtesy of Google Jump Omnidirectional Stereo (ODS) Approximation Peleg et. al 2001 Ishiguro et. al 1990
  43. 43. Image courtesy of Google Jump Omnidirectional Stereo (ODS) Approximation Peleg et. al 2001 Ishiguro et. al 1990
  44. 44. Comparison: Mono and Stereo Panoramas Central, a.k.a. Mono Omnistereo, Multiperspective Peleg et al. 2001
  45. 45. Capture using Single Camera Peleg et al. 2001 Figure 6. Toe in camera model for direct zero parallax generation. The panoramic images so created have preset zero parallax distance. Figure 7. Single camera capture of stereoscopic panoramic images, more common for real camera capture sidebyHariLakshman(EE368)
  46. 46. Anderson et. al, SIGGRAPH Asia 2016
  47. 47. Limitations! • Close objects • Thin structures • Semi-transparent surfaces • Flow mismatches Anderson et. al, SIGGRAPH Asia 2016
  48. 48. Facebook’s Surround 360 RAW Data: 17 Gb/sec Compute time: days to weeks on conventional computer, minutes to hours on data center
  49. 49. Facebook’s Surround 360 RAW Data: 17 Gb/sec Compute time: days to weeks on conventional computer, minutes to hours on data center
  50. 50. Konrad et al., SIGGRAPH Asia 2017
  51. 51. Konrad et al., SIGGRAPH Asia 2017
  52. 52. Konrad et al., SIGGRAPH Asia 2017
  53. 53. Konrad et al., SIGGRAPH Asia 2017
  54. 54. Konrad et al., SIGGRAPH Asia 2017
  55. 55. Panorama v Stereo Movie v Stereo Panorama Panorama mono & head rotation Stereo stereo & no head rotation Stereo Panorama stereo & head rotation RicohTheta horizontal-only parallax
  56. 56. Additional Information • M. Brown, D. Lowe “Automatic Panoramic Image Stitching using Invariant Features”, IJCV 2007 • autostitch: http://matthewalunbrown.com/autostitch/autostitch.html • S. Peleg, M. Ben-Ezra, Y. Pritch “Omnistereo: Panoramic Stereo Imaging” IEEE PAMI 2001 https://stanford.edu/class/ee267/
  57. 57. Omnistereo Panoramas Left panorama Right panorama Omnistereo Format Peleg et al. 2001 sidebyHariLakshman(EE368)
  58. 58. Zero Disparity Distance To control zero disparity distance: circularly shift left pano relative to right pano sidebyHariLakshman(EE368)
  59. 59. Multiperspective Projection JingyiYu
  60. 60. Left panorama Right panorama Disparity Sphere-to-plane distortions Omnistereo examplesidebyHariLakshman(EE368)

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