3D + 2D TV
description
Transcript of 3D + 2D TV
3D + 2D TV3D Displays with No Ghostingfor Viewers Without Glasses
Steven ScherJing Liu
Rajan VaishPrabath Gunawardane
James Davis
University of California Santa CruzSIGGRAPH 2013
3DTV
3DTV3DTV
3DTV3DTV
3DTV3DTV
Standard 3D TV
3D+2DTV Prototype
Third, Inverted Image
Related Work
Projecting onto a Non-Uniform Surface
Minimizing disparity Autostereoscopic Displays
Didyk 2011 Dodgson 2005
Grossberg 2004
TheoryExperiments
Prototype
Standard 3DTV
L L L L
L L L L
L L L L
R R R R
R R R R
R R R RAs Seen Without Stereo Glasses
L L L R R R
Same for Both Eyes2D
3D
Time
L + R
3D+2DTV
L L L L
L L L L
L L L LAs Seen Without Stereo Glasses
L L L R R R R R R
L L L R R R
Same for Both Eyes
Time
2D
3D
3D+2D
L + R+(1-R)
3D+2DTV
L L L L
L L L L
L L L LAs Seen Without Stereo Glasses
L L L R R R R R R
Time
3D+2D
L L L R R R R R R
L + αR [R+(1-R)]
Dimmer
3D+2DTV
As Seen Without Stereo Glasses
L L L R R R R R R
Time
3D+2D
L L L R R R R R RDimmer
Variable-Length L L L L L R R R R
L L L L
L L L L
L L L L
L + αR [R+(1-R)]
3D+2DTVTime
Variable-Length L L L L L R R R R
L + αR [R+(1-R)]
αR= Brightness of Right Stereo ImageBrightness of Left Stereo Image
Darkest and Brightest Pixel of 2D Image
Darkest Pixel
Brightest Pixel:Equal Length
Brightest Pixel:Variable Length
Brig
htne
ssL L L L L R R R R
Brightest Pixel = 1- αR/(1+2αR)
%%%%%
αR
%Variable-Length Frames:
Darkest Pixel = αR maxL
Brightest Pixel = (1+αR)maxL
L L L R R R R R R
Dimmed, Equal-Length Frames:
Viable α?
α=100%α=0%
Acceptable2D View
2D Normal 2D Low Contrast
Acceptable3D View
3D BrightnessToo Unequal 3D Normal
Viable α?
α=100%α=0%
Acceptable2D View
Acceptable3D View
OK
TheoryExperiments
2D Viewer Preferences3D Depth Perception3D Illusions
Prototype
Viewer Preference Test: Composite 2D Image
α=40%
Standard 3DTV 3D+2DTV
Double-ImageLower Contrast
Viewer Preference Test: Composite 2D Image
α=20%
α=40%
α=60%
Standard 3DTV 3D+2DTV
2D Viewers Prefer 3D+2DTV to 3DTV
Equal LengthVariable-Length% Who Prefer
3D+2DTV
%%%%%
αR
3D Depth Perception Test
Far NearStereo Image Shown
3D Depth Perception Test
Far NearPerceived 3D Image
3D Depth Perception Test
Perceived 3D Image
Depth Estimation Excellent for α ≥ 25%
Error inDepth Estimation
(degrees disparity)
%%%%%
αR
Viable α
α=100%α=0%
α=40%
α=25%
Acceptable2D View
Acceptable3D View
OK!
Adaptation to a Darker Image
Dark Lens
Left Eye Right Eye
Stationary Object
SLOW
Dimmer Image = Delayed Image
Stationary Object
SLOW
Moving Objects: Disparity = DepthTime = 1 … 2 … 3 … 4
Moving ObjectApparent Location
Pulfrich Effect Creates Depth
Super Bowl Commercial - Diet Coke
Doctor Who
3rd Rock from the Sun
3D Depth Perceptionof Moving Objects
Stereo Image Shown
3D Depth Perceptionof Moving Objects
Perceived 3D Image
Depths of Moving Objects Distorted
Right Eye Dimmer
Left Eye Dimmer
Dept
h Er
ror (
Degr
ees)
Equal Brightness
Slow
Fast
Fast
Slow
TheoryExperiments
Prototype
Prototype
Prototype
3D Projector
3D Glasses
L R
L
R
Prototype
Polarizing Filter
3D Glasses(With Polarizing Filter)
L R
R
L
R
R
Standard 3D TV
3D + 2D TV Prototype
Third Channel: Inverse of Right Eye
Standard 3D TV
3D + 2D TV Prototype
Third Channel: Inverse of Right Eye
Standard 3D TV
3D + 2D TV Prototype
Third Channel: Inverse of Right Eye
Thank youPlease stay after the next talk to see a
live demo of anew single-projector prototype
http://graphics.soe.ucsc.edu/papers/3d2dtv/
Two-Frame 3D+2DTV
L L L L
L L L L
L L L LAs Seen Without Stereo Glasses
L L L R R R R R R
L L L
Time
Three Frames
L + R+(1-R)
Two Frames
R R RR R R