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3D TV 100203 v2.ppt

An Introduction to 3D TV

Mike Brooks

Head of Technical Development (DVB-T2),

Arqiva Terrestrial Broadcast Division

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Contents

Background

What do we mean by 3D?

Issues for 3D TV

Technologies for delivering 3D TV to the home

Questions

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Background

What do we mean by 3D?

Issues for 3D TV

Technologies for delivering 3D TV to the home

Questions

Contents

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Background

3D has been around for a long time

Film makers rediscover it every 25 years!

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Background

3D Film Releases

0

5

10

15

20

25

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35

1920

1925

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1935

1940

1945

1950

1955

1960

1965

1970

1975

1980

1985

1990

1995

2000

2005

2010

2015

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Background

3D has been around for a long time

Film makers rediscover it every 25 years! Is it going to be different this time?

What is the same this time?

Human perceptionWhat is different this time?

Display Technology (Red/Green Glasses Yuck!)

Live events (Sports events, eg 6 Nations Rugby) Complements (Blu-ray, games)

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Background

However, beware of the Gartner Hype Cycle!

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Background

What do we mean by 3D? Issues for 3D TV

Technologies for delivering 3D TV to the home

Questions

Contents

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Background

What do we mean by 3D? Issues for 3D TV

Technologies for delivering 3D TV to the home

Questions

Contents

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Commercial Requirements for T2

True 3D means different viewpoint depending on viewersposition

Help me Obi-wan

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What do we mean by 3D?

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What do we mean by 3D?

True 3D means different viewpoint depending on viewersposition

Help me Obi-wanDifferent techniques to produce this

Hologram

Holoscopic Etc

(Have a look at http://fusionfilter.com/?p=1702 !)

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What do we mean by 3D?

What we mean for the purposes of this talk is Plano-stereoscopic 3D

2D display delivering Left and Right images to eyes.Again, different techniques to produce this

Anaglyph

Coloured Glasses

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What do we mean by 3D?

What we mean for the purposes of this talk is Plano-stereoscopic 3D

2D display delivering Left and Right images to eyes.Again, different techniques to produce this

Passive

Polarized Lenses winning in Cinema

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What do we mean by 3D?

What we mean for the purposes of this talk is Plano-stereoscopic 3D

2D display delivering Left and Right images to eyes.Again, different techniques to produce this

Active

Shuttered Lenses require high frame ratedisplays, but otherwise little change to displays.

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What do we mean by 3D?

What we mean for the purposes of this talk is Plano-stereoscopic 3D

2D display delivering Left and Right images to eyes.Again, different techniques to produce this

Auto-stereoscopic

No Glasses

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Background

What do we mean by 3D? Issues for 3D TV

Technologies for delivering 3D TV to the home

Questions

Contents

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Background

What do we mean by 3D? Issues for 3D TV

Technologies for delivering 3D TV to the home

Questions

Contents

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Issues for 3D TV

How do we Perceive 3D?

Experience

Optical Illusions

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Issues for 3D TV

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Issues for 3D TV

How do we Perceive 3D?

Experience

Optical IllusionsFocus

Plane of Focus

Depth of FieldParallax

Vergence between our eyes.

Vergence-accommodation conflict

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Issues for 3D TV

A

A

Zero parallax puts object on the screen.

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Issues for 3D TV

A

A

Positive parallax puts object behind the screen.

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Issues for 3D TV

A

A

Negative parallax puts object in front of the screen.

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Issues for 3D TV

How do we Perceive 3D?

Experience

Optical IllusionsFocus

Plane of Focus

Depth of FieldParallax

Vergence between our eyes.

Vergence-accommodation conflictInfinity Divergence

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Issues for 3D TV

A

A

Vergence for objects at Infinity.

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Issues for 3D TV

A

A

Problem when we increase screen size,or move closer to the screen.

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Issues for 3D TV

Analysis tools required to assess these issues in normaluse

Careful production can overcome these problems Avatar

OK to watch for 3 hours

but Took 8 years to make

Cost $300M!

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Background

What do we mean by 3D? Issues for 3D TV

Technologies for delivering 3D TV to the home

Questions

Contents

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Background

What do we mean by 3D? Issues for 3D TV

Technologies for delivering 3D TV to the home

Questions

Contents

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Technologies for Delivering 3D to the Home

Delivery to Home

Frame (Infrastructure) compatible

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Technologies for Delivering 3D to the Home

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Technologies for Delivering 3D to the Home

Delivery to Home

Frame (Infrastructure) compatible

Service compatible Viewable on a 2D and 3D screen

Needs new compression encoder

Needs new STB for 3D 2D +

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Technologies for Delivering 3D to the Home

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Technologies for Delivering 3D to the Home

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Technologies for Delivering 3D to the Home

+

=

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Technologies for Delivering 3D to the Home

Delivery to Home

Frame (Infrastructure) compatible

Service compatible Viewable on a 2D and 3D screen

Needs new compression encoder

Needs new STB for 3D 2D +

Delivery to the Display

Frame CompatibleHDMI 1.4 Frame Interleaved (2x Frame Rate)

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Background

What do we mean by 3D? Issues for 3D TV

Technologies for delivering 3D TV to the home

Questions

Contents

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Background

What do we mean by 3D? Issues for 3D TV

Technologies for delivering 3D TV to the home

Questions

Contents

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Thank you.

Any Questions

mike.brooks@arqiva.com