1. 1. Masayuki Tanaka Aug. 2015 Stereogram and Stereo Vision
2. 2. Outline Stereogram Disparity Three types of stereo display Polarization Anaglyph (Red-Blue) 3D goggle Computer vision Lets have the 3D experience! 1
3. 3. Stereogram 2 Left camera Right camera Left view Right view Partition 3D object 3D perception 2D information 2D information
4. 4. Disparity 3 Left eye Right eye Far object Near object Left eye Right eye Large disparity Small disparity
5. 5. 3D display 4 Left view Right view Right view Left view Right view Right view Small disparity Far NearLarge disparity
6. 6. Polarization 3D glasses 5 https://www.youtube.com/watch?v=r44kZuo5Vi0 DIY 3D home cinema for $1 (and a spare projector)
7. 7. Polarization 6 z y x Electric field Magnetic field Light = Electromagnetic wave Examples of polarization x y x y Left eye Right eye
8. 8. Anaglyph (Red-Blue) 7 Left eye Right eye Blue-projector Red-projector White Blue Red Blue Blue Dark (Blue object) (Red object)
9. 9. Sample movie 8 https://www.youtube.com/watch?v=3m7t0eNg5Z8 Dinossauros 3D-HD 1080p
10. 10. 3D goggle 9 Luklas ( http://luklas.lukla.jp/ ) 3D goggle for smartphone Top view Left view Smart phone Right view Left eye Right eye Side-by-side 3D google Oculus Rift ( https://www.oculus.com/rift/ )
11. 11. Side-by-side sample movie 10 https://www.youtube.com/watch?v=bTEPm5ZUcXU LG 3D Demo 1080p Half-SBS AC3
12. 12. Stereo measurement 11 Left camera Right camera B x f D Known parameters: B: baseline f : focal length If we can estimate x, Right view Left view x =
13. 13. Computer vision 12 500 input images Feature point extraction, Feature point matching Stereo measurement, Camera pose estimation, Global optimization http://www.ok.ctrl.titech.ac.jp
14. 14. Reconstruction result 13 Three dimensional model reconstruction from two dimensional images. http://www.ok.ctrl.titech.ac.jp
15. 15. Lets have 3d experience! 14 Google by Side-by-side 3d or Yourtube search by Side-by-side 3d SHARP 3D Demo - Vision 02 - 3D 1080P Side by Side (SBS) https://www.youtube.com/watch?v=AdtrKZoE_To http://bit.ly/sidebyside1 3D Test Music Video yt3d:enable=true (Side By Side) https://www.youtube.com/watch?v=mzWUAwJN46M http://bit.ly/sidebyside2 Music Video Perfect Sky 3D: Boston Whales (3D side by side) https://www.youtube.com/watch?v=q_kabqWmmaA http://bit.ly/sidebyside3 http://bit.ly/ttopen2015-3d