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