“Display Workshop” Stuttgart 4 July 2009 Picture Quality ...

Panasonic Europe Ltd. Panasonic AVC Langen Development Centre (PLDC)

“Display Workshop”Stuttgart 4th July 2009

Picture Quality ActivitiesArne Wild

Panasonic AVC Langen Development Centre (PLDC) Arne Wild

Table of Content

• Vita

• LSI / Algorithm development

• History of PLDC Picture Quality activities

• UP-Conversion Methods

• Vector based Up-Conversion

• Critical sequences

• Summary

• Vita

• LSI / Algorithm development

• History of PLDC Picture Quality activities

• UP-Conversion Methods

• Vector based Up-Conversion

• Critical sequences

• Summary


Panasonic Entwicklungsstandort in Langen (Hessen)existiert seit 1. September 1991

Panasonic Entwicklungsstandort in Langen (Hessen)existiert seit 1. September 1991

Vita „Arne Wild“

• 1991-1996 Studium der Elektrotechnik an der FH Wiesbaden Fachrichtung Fernsehtechnik

• 1991-1996 Tontechniker im Bereich Hörfunk beim SWR in Mainz

• 1997-2009 Entwicklungs-Ingenieur bei Panasonic in Langen (Hessen)

- Entwicklungs-Ingenieur im Bereich HW & SW (VP1 – VP2)

- Abteilung & Projektleitung (EFC, EFCII, HQ1 + FRC)

- Manager SW Qualifizierung für Continental PDP & LCD (TV’s mit DVB-T, DVB-C, DVB-S/S2 Tuner)

• 1991-1996 Studium der Elektrotechnik an der FH Wiesbaden Fachrichtung Fernsehtechnik

• 1991-1996 Tontechniker im Bereich Hörfunk beim SWR in Mainz

• 1997-2009 Entwicklungs-Ingenieur bei Panasonic in Langen (Hessen)

- Entwicklungs-Ingenieur im Bereich HW & SW (VP1 – VP2)

- Abteilung & Projektleitung (EFC, EFCII, HQ1 + FRC)

- Manager SW Qualifizierung für Continental PDP & LCD (TV’s mit DVB-T, DVB-C, DVB-S/S2 Tuner)


Algorithm / LSI development

VP1(Euro 3H)

VP1(Euro 3H)

VP2s(Euro 5)VP2s

(Euro 5)

1996 1998

Bscan2+(Euro 3)Bscan2+(Euro 3)

1997

History

Algorithm / LSI & Memory - Development:Motion Adaptive Field / Frame-based Conversiontemporal Noise Filter


Algorithm / LSI development

VP1(Euro 3H)

VP1(Euro 3H)

VP2s(Euro 5)VP2s

(Euro 5)

EFCIIEFC

“Acuity”EFC

“Acuity”

1996 1998 2001


1997 2004

History

Algorithm & LSI - Development:Motion compensated frame rate conversion.Interlaced & progressive output / Film Mode Detection


Algorithm development

VP1(Euro 3H)

VP1(Euro 3H)

VP2s(Euro 5)VP2s

(Euro 5)

EFCIIEFC

“Acuity”EFC

“Acuity”

1996 1998 2001


1997

HQ1

FRC

2004 2006 2008

History

Algorithm - Development:Motion compensated frame rate conversion.Interlaced & progressive output / Film Mode Detection


Up-Conversion

0 10 20 30 40 50 60 70

A0 B0 A1 B1

a0 a4a2

b1 b5

a6

t [ms]80

A2

a8

50 Hz

100 Hz

I0 I1 I2 I4 I5 I6 I8

b3

I3

b7

I7

100Hz Principle


Up-Conversion

Simple 100Hz AABB

characteristics:+ large area flicker reduction - motion jerkiness (double contours)+ motion processing - line flicker

50 Hz

100 Hz


Up-Conversion

Simple 100Hz ABAB

50 Hz

100 Hz

characteristics:+ large area flicker reduction - motion artefacts (saw-toothed)+ line flicker reduction - motion judder


Up-Conversion

Motion Adaptive 100Hz

0 10 20 30 40 50 60 70

A0 B0 A1 B1

A0 A1B0*

A0* A1*

B1*

t [ms]80

A2

A2

50 Hz

100 Hz

I0 I1 I2 I4 I5 I6 I8

B0

I3

B1

I7

characteristics:+ large area flicker reduction - artefacts in high motion areas+ line flicker reduction+ motion processing


Up-ConversionVector Based e.g. 75Hz

0 13,3 20 26,6 40 53,3 60 66,6

A0 B0 A1 B1

a0

b0

a3

b3

a2

b2

a1

b1

a4

b4

a5

b5

t [ms]80

A2

a6

b6

50 Hz

75 Hz

P0 P1 P2 P3 P4 P5 P6

characteristics:+ large area flicker reduction+ line flicker reduction (progressive) + motion processing


Vector based Up-ConversionConversion 50 Hz 75 Hz

Input: 50 Hz

Output: 75 Hz

MEvector


Vector based Up-Conversion

Frame rate conversion without motion judder or double contour effectsrequires motion estimation between two successive fields

and to shift pixels depending on the measured motion.

Frame rate conversion without motion judder or double contour effectsrequires motion estimation between two successive fields

and to shift pixels depending on the measured motion.

ConventionalFrame Rate Conversion

Motion CompensatedFrame Rate Conversion

Principles of Motion Compensated Frame Rate Conversion


Critical sequences

Motion artefacts in areas of obscured and revealed background

Motion artefacts in fast ticker

Motion artefacts in fast movies

Pictures with maximum resolution e.g. 1 by 1 Pixel

Motion artefacts in movie or camera parts


Summary

Algorithm Development for Improved Picture Quality

Mixed Pictures Mode• Block based Algorithms to handle a mixture of areas (Movie, Camera and Still)

Full Film Mode Compensation• Processing of all Pull-Down modes (NTSC / PAL)

Display Adaptive Output• Scaler, Framerate Conversion, Progressive output, HDTV capability to adapt

to various types of displays (CRT, PDP, DLP, TFT)

Multiple Signal & Format Interface• SDTV, HDTV, progressive 50Hz/60Hz

Algorithm Development for Improved Picture Quality

Mixed Pictures Mode• Block based Algorithms to handle a mixture of areas (Movie, Camera and Still)

Full Film Mode Compensation• Processing of all Pull-Down modes (NTSC / PAL)

Display Adaptive Output• Scaler, Framerate Conversion, Progressive output, HDTV capability to adapt

to various types of displays (CRT, PDP, DLP, TFT)

Multiple Signal & Format Interface• SDTV, HDTV, progressive 50Hz/60Hz


Vielen Dank für Ihre Aufmerksamkeit!

Fragen ?

Vielen Dank für Ihre Aufmerksamkeit!

Fragen ?

Panasonic Europe Ltd. Panasonic AVC Langen Development Centre (PLDC)

Bewegtbilddarstellung 2009

Markus WagenseilTechnical Marketing Manager

Panasonic Marketing Europe GmbH


Bewegungs-Unschärfe Ruckeln Artefakte

Die drei großen Themen in der Bewegtbilddarstellung


Exzellente Bewegtbilddarstellung mit dem NeoPDP

600Hz SFD IFC Pro

1 SekundeX 50 BilderX 12 Sub-fields= 600 unterschiedliche Bewegungsphasen


Exzellente Bewegtbilddarstellung mit dem NeoPDPVergleichende Bewegtbildanalyse mit APDC Messaufbau


24Hz

Convert to 48pfilm source 24p 24p Smooth Film

補完フレーム

CalculateAmount of movement

A

B

C

A’

B’

A

B

C

a

a

2460

a * * 1

2460

a * * 2

2460

a * * 3

Estimate b using a

Estimate c using a

b =b

c =

d =

c

Estimate d using a

d

b

d

c

Time

n+1

n+2

n+3

n+4

n

60 Hz48 Hz24 HzAusgabe:

Weicher Film – wenn der Kameramann schlampt


Die intelligentere 100 Hertz Lösung der LCD-TVs


Erkanntes Objekt löst Blink-Zyklus aus

Bewegtes Objekt

-> Kein Helligkeitsverlust, da Blinkdauer von der eingestellten Helligkeit abhängt



Plasma-TV LCD-TV Plasma- &

LCD-TV

Bewegungs-Unschärfe Ruckeln Artefakte

Plasma- &

LCD-TV

Plasma-TV

Panasonic 2009 – die passende Antwort auf jedes Thema


Vielen Dank für ihre Aufmerksamkeit

“Display Workshop” Stuttgart 4 July 2009 Picture Quality ...

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