CDT-4120M Compression Contribution WP

8/6/2019 CDT-4120M Compression Contribution WP

http://slidepdf.com/reader/full/cdt-4120m-compression-contribution-wp 1/12

Whitepaper

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Video distribution networks have with the

introduction o MPEG-4 AVC been able to

halve the required transmission bandwidth

enabling the introduction o high defnition

programming. Contribution networks have

been lagging behind in terms o deployable

solutions but two compression ormats are

now ready to battle it out to replace the 15-

year old MPEG-2 compression ormat. This

paper will look at what progress broadcasters

can expect rom these new compression

technologies.

New Compression Technologiesor Contribution Networks

a Olsn, ec Gll

al 2010



Contents

Introduction 1

What Defnes Contribution Quality? 1

New Compression Formats or New Video Networks 2

hg Dnon – t Quly Cllng 2

108050/60 – a Nw poducon Fom 2

3D – a Nw Vwng exnc 3

Bit Rate Reduction Using MPEG-4 AVC 4

W Dos MpeG-4 aVC O Ov MpeG-2 Vdo? 4

W dos MpeG-4 aVC o ov MpeG-2 Vdo? 4

how Lncy infuncs pcu Quly 5

Lmd Bndwd tnsmsson Lnks 5

Increased Picture Quality Using JPEG 2000 6

Comng MpeG-4 aVC nd JpeG 2000 6

Mngd Nwoks 6

Lncy 7

Quly 7

The HD Compression Choice 7

B r 8

how o Coos rg tcnology 8

hg Quly, Low Lncy bu hg B r 8

Good Quly, Low Lncy w Lmd B r 8

Good Quly, Long Lncy w Low B r 8

Comnsv Codc rng 9

Flxbl Nwok ads 9

tlco Mngmn Sysm 9

Grass Valley Contribution Solution 9

Conclusion 10

rncs 10



1

New CompressioN TeChNologies or CoNTribuTioN NeTworks

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Introduction

Fo som m, bodcss v usd lco nwoks o c- conbuon lnks o mov vdo nd udo conn bwnlocons. Wl mo donl lco nwoks cn cy lgmouns o d comv s, y my ysclly lck c o sll-bsd sysms.

Now, w gowng vlbly o ip/MpLS (mul-oocollbl swcng) ccss ons nd v-ncsng dmndo quly g-dnon conn, bodcss nkng comsson sgs. t 2010 FiFa Wold Cu n Souac wll b s mjo song vn oducd n 3D. as

3D gows n monc, lg bodcss wll look cnglv conbuon lnks o suo bndwd o 3D hD osong vns. ts cngng qumns dvng voluon o nly nw conbuon wokfows.

ts wll cov ls dvncs n vdo comsson

cnologs nd ow mgng comsson oms sucs JpeG 2000 nd MpeG-4 aVC dlv ducd bndwd oncsd cu quly—nd 3D—wn comd o MpeG-2.

Conbuon quly s on consdd quvln ouncomssd o vy mldly comssd souc ml. tvdo s cbl o bng dd wou kng no ccoun ognon souc. tdonlly, MpeG-2 codcs v

od ull m , nd 4:2:2 smlng s usullymnnd. Comsson b s v nomlly bn k b ov 8 Mb/s o sndd-dnon vdo wl hD codcso clos o 50 Mb/s. as w mov owd n ll-hD con-buon nwok, w’v bgun o s numb o lmons o cun MpeG-2 oc:

hD sll conbuon lnks cosly•

pcu quly s comomsd du o lmd b s•

acquson nd conbuon quly no dncl•

t s ll o no suo o 1080 50/60 o 3D oms•

hD vdo sns bggs comsson cllng oconbuon lcons nd s dvng mny o cnology

cngs w s ody. Fgu 1 lluss comssonsquz qud by MpeG-2 codcs o llow hD bodcsconn o b nsmd om cm o om (o ul-m vw).

Bodcss kn o u mov comssono by ong hD b s s low s 4 Mb/s. ts b sns sgncn cllng o codc mnucus wo

mus blnc s ds o o low b s w nd o mnn cu quly. as b s dvn downn nl dsbuon ncod (o ull 100:1), s mouno nsu cu quly s mnnd s g s ossbl

no s ncod. ts cn b don n wo wys:incs conbuon comsson omnc wn•

gvn bndwd

incs conbuon comsson b •

Wl wo ons bov my sm obvous, lgcy MpeG-2codcs nd nwoks v lckd cbly o ovd ncssy comsson o conbuon lcons. Vdo bs v, n gnl, bn lmd o blow 100 Mb/s wl com soluon s bn lmd o 8-b 4:2:2.

Fo SD, suon s slgly dn o numb o -sons. Fgu 2 sows comson bwn comssonos o hD nd SD o vous lcons. t gu llus-s ducd comsson o qud o SD (mly

10:1) nd nc ducd ‘ssu’ on ncod. Fu, bndwd consn s gly sd nd s ly squzdu o cos uoss.

t xmls bov l dmons wy hD s dvng doon o nw comsson cnologs w noduc-on o h.264 nd JpeG 2000.

What Defnes Contribution Quality?

Figure 1. HD content from camera to viewer, 100:1 compression. Figure 2. SD content, a milder 10:1 compression versus HD’s 100:1.

Mastering Quality

Contribution Quality

Distribution Quality

15-18 Mb/sDistribution

25-45 Mb/sNetwork45-150 Mb/s

Delay Edit

45-270 Mb/sBackhaul

100-440 Mb/sSlo-mo Edit

VTR/DiskMasterCamera

1,500 Mb/s

Camera

270 Mb/s

4-15 Mb/s

Distribution

Mastering Quality

Contribution Quality

Distribution Quality

15-18 Mb/sDistribution

45-150 Mb/sDelay Edit

45-270 Mb/sBackhaul

Camera1,500 Mb/s



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New Compression Formats or New Video Networks

Vdo nwoks cngng. ts cngs dvn, nlg , by ndul o cos. t s s nd onso hD conn. ts qumn could ld o onl6-old ncs n bndwd o 720/1080 nd 13-oldncs o 108050/60 wn comd o SD vdo. tscond co o nd s ncsd ssu om consum-s o ll nw 40 o 50-nc LCD/lsm scn wcs, dld cus. td, nw cnologs suc s 3D bcomng ncsngly mon s dno o mumbodcss lookng o o svcs bov nd byond hD.

to m s dmnds, bodcss my ws o look coml bodcs cn o omz cu vysg o ocssng. t s l n mov owd b-bsd conbuon nd dsbuon lnks. ts nd lys oundon o g b- vdo conn o b nsod n cos-cv wy.

ts nds v ld qumn vndos o ssss suon nd buld nw s o oducs o m s nwnds. Wn comd o cun, wdly-usd MpeG-2

comsson om, wo dcons ddssd ndcovd n s :

rducd b oon usng MpeG-4 aVC [1]•

incsd cu quly usng JpeG 2000 [1]•

h Dntn – T Qaty Can

Dlvng g-quly hD conn ougou modn lvbodcs wokfow s sll cllng nd no lmd only o nl dc-o-om (Dth) ncod’s omnc. Mucdb nd non s bn gvn o qud b o s ncods, wl lmd dscussons v kn lcound coml cn. i s wll known c vym n ncod-dcod sg (o concnon) ks lc,

do n quly s lso sn. i s no uncommon o sx con-cnon cycls o occu om m vdo s cqud sos sdum o s dlvy o om, c cusng qulyo dmns. in ddon, som dng nd lyou svs lmd n hD soluon o 1440x1080 s comd o ulls 1920x1080.

ano cllng s quly dnc bwn smulcsSD ogm nd s hD ognl, wc s xcd o b sg-ncn by nd us. W ugd o hD nsucu,s SD cnnl sn smlly sgncn quly ncs?ts, could w c hD cnnl s on ‘dvn’d (low b n 6X SD b ), cn n mnycss lm cvd quly dnc bwn wocnnls.

108050/60 – A N pdctn at

Bo gng no dls o s nw comssondvlomns, w wn o look 108050/60 wc could b nx oducon om o coc o bodcss. i scng ks lc, wll gly nfunc ow conbuon

qumn s dsgnd ov nx w ys. 108050/60now sns nncl o g-dnon omncn ys o vws g o s Blu-y-lk omnclcd n lv hD nsmssons.

i s blvd nx-gnon bodcs sysms wll snd nd w ogssv-bsd qumn. inlc ws no-ducd no bodcs nwoks smly s mns o ovcom g scnnng quncs o lvson. to, good sons o mov owds ogssv dsbuon:

povd n movmn n cu quly, cully o•

sos

avod nlcd o ogssv dsly convson, wc•

noducs cs

O n movmn n mxd lv con nd gcs•

scns (common n sos)

tk dvng o vlbly o ogssv dslys, wc•

domnn n xsng (nd lkly o b n uu lyouloms)

Wll smly oducon nd dsbuon sysms by usng •

common om

esy o ugd o 3 Gb/s ncs nd nsucu•

i u oo s qud, w cn xmn nd o ody’shD sos bng bodcs n 72050/60 om n g soluon 108025/30 om. in U.S., whD dloymn s md gs nods, 72060 s

bcom mos common oducon om mong sosbodcss. aBC, FOX, nd eSpN v ll cosn 72060om, w som clm dlvs smoo mg oso’s s con s no nlc lds wn mo oduc mol dly.

t oubl, n, o bodcss s condons myno b dqu o s s o k lc. Conn, cn-cl lgcy nd obl svc ovsonng sgncnssus o consd wn mlmnng nx-gnon hD108050/60 om. ts wll no dscuss noducono 1080 n u dl bu wll uly s momn-um bnd s sndd s noug o o m sousconsdon wn lnnng nw vdo nwoks. Fu, s 108050/60 os uu-oo nsucu o

3D—n ssu wll b covd n nx scon.



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New Compression Formats or New Video Networks (cont.)

3D – A N Vn exnc

Followng succssul noducon o hDtV, omnnmn ndusy s conmlng s nx mov n om vwng ‘xnc.’ Lookng cn movs n lm ndusy s ncsng s 3D ouu vng wy

o om vson o sm, wll u 3D vwng xnccy ov no consums’ lvng ooms? Lk bl comus,3D o om s d nd dd wy svl msn s. Nvlss, f dsly cnology s mdquck y sdy ogss n om non nd s nowmo o lss wll-sblsd w lg scns, dy o 3Dsogy. a s sg succss n mov s so bn om ‘wow’ co. among bodcss, lydos v bgun own 3D ls, nd 2010 looks o b y o mnn 3D cnnls.

t svl mgng sndds o dlvng 3D mgso nd consum. t m s o mnn s muc o xsng nsucu s ossbl, ldng o comoms nsoluon o mk ull mg no n xsng 1080 cn-nl. Fo conbuon lcons, s comoms n soluons, owv, no ccbl. evn s song vn s son 3D, conn mus lso b md vlbl n 2D hD ull-soluon. t l nd g so mg s ndld s wos hD cnnls w on o cnnls s usd s 2D vson.

Fo conbuon nsucu, w v coc o sngl 3G-SDi wokfow o dul hD-SDi wokfow. Bo ossbl, bu s mng bwn l nd g somg s ccl o 3D vwng xnc, sngl 3G-SDinsucu s bl. Gss Vlly™ suos bo omsw s nw VBe Va5004 JpeG 2000 conbuon codc, wl VBe eM3000 pmum Dsbuon ncod s ldybng usd o dc–o-om bodcs o 3D conn.



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Bit Rate Reduction Using MPEG-4 AVC

Fo mny sons, MpeG-2 comsson ws oug c o ol-low, nd s dscbd vously n s , s sll vy mucn volvng sndd. Fo conbuon lcons, MpeG-2vdo s bn om o coc o ls 10 ys ndoducs vlbl w us suc s low lncy nd-o-nd dly nd 4:2:2 com smlng o ncsd dly.as w MpeG-2 vdo, ols v bn dvlod wnMpeG-4 aVC c o nds o ossonl uss.ts possonl pols nclud numb o conbuon-scc ols:

hg 10 pol, u o 10-b vdo/4:2:0 com smlng•

hg 4:2:2 pol, u o 10-b vdo/4:2:2 com smlng•

hg 4:4:4 pdcv pol, u o 14-b vdo/4:4:4 com•

smlng

in ddon o bov us, dvncd 8x8 nsom ndsclng mcs covd by hg pol (u o 8-bvdo/4:2:0 com smlng) cn onlly o sgn-cn cu quly movmns n ng o 15% ov

Mn pol.

wat D mpeg-4 AVC o ov mpeg-2

Vd?

MpeG-4 aVC bulds on MpeG-2 vdo sndd, bu slluss mny o undmnl buldng blocks bnd og-nl sndd. ts :

Slc nd mcoblock-bsd ocssng o lumnnc nd•

comnnc xls

Dsc Cosn tnsom o mov sl cu•

dundncy

Moon esmon dcon o mov mol squnc•

dundncy

tnsom, Qunzon nd enoy codng o mov•

u so-mol dundncy bwn ognl nddcd mcoblocks

wat d mpeg-4 AVC v mpeg-2

Vd?

pcu nd Mcoblock-adv Fld/Fm codng llows•

codng dcsons o b md n ld o m mod cu o mcoblock lvl

a wd ng o n- nd n-dcon mods o block•

szs ngng om 16x16 down o 4x4 xls. By vyng block sz usd n moon comnson, bodcss mo ncs ossbly nd ccucy o mc bwnnc nd moon-comnsd dcd blocks

allowng moon comnson o b omd on-•

qu sml cson nd bly o us moonvcos om ousd o cu

Mo cn noy ncodng sgs n om o•

Conx-Bsd adv Bny amc Codng (CaBaC)nd Conx-adv Vbl Lng Codng (CaVLC)

as w cn s, MpeG-4 aVC sndd s s o wll-dnd ools o cov conbuon lcons. Mnucuso ncods nd dcods v, owv, bn ly slow obng ou qumn ks dvng o s nw sn-dds. Only n ls y v w sn MpeG-4 aVC codcslk Gss Vlly VBe eM3100 ong cu quly qulo xsng MpeG-2 ncods. ts codcs o 4:2:2 ol

bu lmd o 8-b soluon, s n cs o MpeG-2vdo. ts codcs v succssully nbld sgncnb ducon ov lgcy codcs w sml no qulquly. Bndwd svngs o oxmly 40% on g-dnon lnk cn b cvd. t obvous bn o s s hD conn cn b movd ound muc mo sly nd gly ducd cos.

in dgm blow, w v comd bs- n-clssMpeG-2 vdo conbuon ncod o nw VBe eM3100ncod. t suls ndc MpeG-4 aVC ovds sgncn ducon o u o 40% s b s ducd.a g b s, gn o movng o MpeG-4 aVC s momgnl. Bo ogssv nd nlcd (720 nd 1080)sow sml suls. i w k on xml o conbuon

lnk cunly unnng 50 Mb/s usng low lncy nd 4:2:2smlng, s ossbl o duc s o 30 Mb/s by movng oMpeG-4 aVC w sml lncy nd 4:2:2 smlng.

Blow s no comson bwn MpeG-4 aVC ndMpeG-2 hD vdo, w bo ncods unnng n 4:2:2 mod.t nso sm ws s 20 Mb/s nd 40 Mb/s, sul-ng n vdo b o 18 Mb/s nd 35 Mb/s. t nn o scomson ws o dmons cossov on bwn wo comsson oms. t MpeG-4 aVC b wsk consn o sow wn MpeG-2 vdo would yldqul quly. t suls blow sn n vg vlu o14 squncs nd ncludd bo 1080 nd 720 conn.

33

34

35

36

37

38

39

18 25 30 45

Mb/s

P S N R

( d B )

MPEG-2/MPEG-4 @ 850 ms

EM3100 MPEG-4

HDE8150 MPEG-2

32

33

34

35

36

37

38

39

35 45 50 60

Mb/s

P S N R

( d B )

MPEG-2/MPEG-4 @ 350 ms

EM3100 MPEG-4

HDE8150 MPEG-2





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Increased Picture Quality Using JPEG 2000

esblsd s n nnonl sndd n Jnuy 2001, JpeG2000 s sng o ov s usulnss s comssonom o g b lcons. is lck o ly succsso ccnc cn b bud o lck o snddzonmods o cyng JpeG 2000-ncodd cus ov ns-msson lnk. howv, s s now bng ddssd nd xcon s cg wll soon bcom n nnonlsndd.

JpeG 2000 s cully mly o sndds. among ssndds, JpeG 2000 p 1 [2] dns lossy nd losslsscomsson mods o colo dgl sll mgs. i s usdn dgl cnm s vdo comsson ngn. in s cso dgl cnm, vdo s consdd succssv mgswc c codd ndvdully. a co o JpeG2000 ncodng ngn, Dsc Wvl tnsom (DWt)s ld o c colo comonn o cu. SuccssvDWts ld on qu-szd low quncy cu.ec succssv DWt movs comsson cncynd dds sl sclbly u. t nsomd cus n ncodd on block-by-block bss. ec cocn

s unomly qund nd wgd o r DsoonOmzon uncon. ec b-ln s ncodd n svlconscuv ss by eBCOt (embddd Block Codngw Oml tuncon) noc cod, w ngbong bswn block consdd. t lmny cks n bly odd o gn nl cod sm. JpeG2000 s n n-only comsson mod. in m ncod-ng llows o low-comlxy ncods o b usd snc dos no qu moon smon. howv, lck o ndcon (p nd B ms) songly lms comsson os cn b cvd.

Can mpeg-4 AVC and Jpeg 2000

Gss Vlly cd ou n nvsgon comng dncomsson sndds o g b lcons. t sudyound wo bs comsson oms o s lc-ons aVC-in (aVC-i) nd JpeG 2000.

t nvsgon uncovd on uly n-m bss, wo comsson oms w qu combl coss ng o squncs. t my dnc s n ndlng ocomsson ons, o concnons, w JpeG 2000dlvs b suls.

manad Nt

Nx-gnon vdo nwoks no ll bou comsson.in c, w v sn som vdo nsmd uncomssd.ts s mly bn cs o SD conn w bnd-wd s mo mngbl. as vdo nwoks mov owd nip-bsd nso ly o ncsd oung cbls, ssm ip nwoks nd o b mngd o m dmndo conn fxbly. Conn s bn cngng. i could blv o -codd. Lkws, could b sss n om odvsng o vdo-on-dmnd. Common o s mngdnwoks s y dmnd mo om conol nd mn-gmn sysm. Sml qumn conguon nd lmmonong no noug. Nw us suc s lnk scdul-ng w bndwd mngmn ndd. ts wll llowoos o mxmz vnu oug ncsd nwokulzon nd o ddss d-oc vns suc s nwsgng.

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26

28

30

32

34

36

38

40

42

150 200 250 300 350 400

All Sequences 1080p50 Shift

P S N R

( d B )

Bitrate (Mb/s)

AVC-I (Iteration #1)

JPEG 2000 (Iteration #1)

AVC-I (Iteration #8)

JPEG 2000 (Iteration #8)



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The HD Compression Choice

Wn lookng conbuon nwoks, bodcss cd w cnology cocs. No only do w s s omsll-bsd conbuon nwoks owd mo b-bsdnwoks, w lso v coc n comsson oms. tsoms :

JpeG 2000•

aVC•

aVC Long GOp•

ec om s ccscs nd cos ons mk msubl o dn lcons. i s mon o noc s dncs dvn by mlmnon lmons n solls n sndds mslvs. an xmlo lmd omnc dnc bwn JpeG 2000 ndaVC-i s llusd n vous scon. JpeG 2000 codcsv, owv, bn n mk o coul o ys wln aVC-i soluon s no xcd unl 2011.

to mk comsson cocs mo snv o l-l

lcons, s sls qumn no s.t coc o comsson sndd s nomlly comomsbwn ollowng ky comonns:

latncy

in dgl wokfow, lncy s nv dsbl bu no ncs-sly s ccl s cn b o som conbuon lnks. Fo mos , s ls o lv wo-wy nvws wxcssv lncy wll ld o bkdown n fow o

convson. in gnl, n nd-o-nd lncy o mo n1 scond s no ccbl. ts wll oduc comssonlncy o 500 ms nd nwok lncy o sm vlu.

W lncy s do w comsson. Wnlncy s ducd, wo o s us o b los longlook-d nd dul-ss comsson. ts “loss” mks ncod mo vulnbl dung scn cngs o cn cusd lon n cu comlxy. as lncy s ducd, comoms mus b ound bwn quly nd b .

in gnl, JpeG 2000 nd aVC-i/so GOp v bou 50 mso nd-o-nd lncy, nd s s my u dvng bs g o s oms. JpeG 2000 s lmd o n-m only wl aVC cn k dvng o GOp sucus

o cv mo fxbl lncy nd b comoms (ococ). in cun ncod mlmnons, GOp sucuo “ipipip” o “iBpiBp” s nomlly slcd. ts lds o lncy o bou 500 ms.

Qaty

Conbuon cu quly cn b bokn down no vsulquly nd objcv quly. Du o vg g b susd o conbuon lnks, vsul quly s nomlly onlycomomsd o lv nws nvws w lncy s momon nd conn s ll vlu bng d o s m. Fo s son, mos nws conbuon dsus 4:2:0 smlng mod.

Objcv quly s yclly mo mon n conbuon.

W MpeG-2, only 4:2:2 com smlng ws od bovw ws bodcs o om. W MpeG-4, sn-dd s now ong 10-, 12-, nd 14-b xl soluon nd108050/60 cu om longsd 4:2:2 com smlng.JpeG 2000 lso os s nncmn ov MpeG-2. tsnncd cu nomon wll qu g b ov ny c on cu quly.

Latency

Quality Bit Rate



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The HD Compression Choice (cont.)

bt rat

t conbuon b s on ovlookd wn dscuss-ng g quly vdo lnks. in sk cons o Dth ncodsw cllng s bly o un down b ,MpeG-bsd conbuon ncods v oos ob-

lm. as b gos u, n ncod wll nd ncsdocssng ow o b bl o un mny o comssonus lk CaBaC b s bov 50 Mb/s. abov cnb , s os ll quly gn—dndng on sccmlmnon. JpeG 2000 dos no su om s oblmowv s s mly du o mo blncd ocssngnd bwn ncod nd dcod. a JpeG 2000 ncods mo sgowd comsson ngn comd oMpeG-4 wl dcodng sd s mo comlx nd qusmo ocssng ow.

h t C t rt Tcny

in ms o comsson oms, bodcss v mococ. ts nw oms clly o sgncn bns ov

xsng MpeG-2 om wn movng o hD. t blblow s summy o u ss dscussd bov:

h Qaty, l latncy t h bt rat

W bly o ndl u o 500 Mb/s o vdo w bo4:2:2 nd 10-b soluon, JpeG 2000 s n dl comssonsndd o nw lco-bsd conbuon lnks. add o sbus good lncy omnc, nd JpeG 2000 mks

vy good soluon o g-bndwd lnks. No, owv, JpeG 2000 sndd s no subl o us b s blow100 Mb/s. Fo s ys o sysms, Gss Vlly os VBe Va5004 Vdo ado.

gd Qaty, l latncy t ltd bt rat

Followng wd dloymn n Dth lcons, aVC s bgn-nng o mk s wy no conbuon n. Gss Vllyluncd s 4:2:2 ncod nd ody, om s gnngwoldwd momnum. aVC ncods v bn ulzd mnlyo lcons w lmd bndwd. W u o 40% gb ulzon n MpeG-2, sll bodcss vbn m y uss o MpeG-4 aVC ncods. t GssVlly VBe eM3100 codc s dl o s ys o conbu-

on lnks.

gd Qaty, ln latncy t l bt rat

Wn b bcoms mos mon u o nsmsson, s common o mov o dul-ss coms-son sysm nd duc smlng o 4:2:0. an ncod sucs Gss Vlly VBe eM3000 s cbl o dlvng gquly vdo b s u o 50 Mb/s nd s dl o con bu-on lnks w 4:2:0 com smlng s sucn.

Jpeg 2000 AVC AVC loNg gop

+120 Mb/s•

108050/60•

10-b suo•

4:2:2 suo•

in-m only•

Lncy: <100 ms•

20-120 Mb/s•

108050/60•

8/10-b suo•

4:2:2 suo•

in-m o ip/iBp GOp•

Lncy: 350-750 ms•

1080/720•

8-b suo•

4:2:0 suo•

Lncy: +500 ms•



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Grass Valley Contribution Solution

Gss Vlly s ld n dlvng soluons nblng g-quly nsmsson o bodcs conn ov lcomnwoks. W wd ng o oducs covng moscommon nwoks, Gss Vlly s ld n s mk.

Cnv Cdc ran

t Gss Vlly VBe vdo comsson oduc mly oss-o-- ncodng nd dcodng cbly. t VBencod oducs dlv wd vdo comsson ng omul-low b s o ndusy-ldng low lncy. pmumvdo quly s nsud by g-omnc, Gss Vlly-dsgnd comsson ngn. W noducon o bnd-wd-nnsv hD, vdo comsson s movng o MpeG-4nd JpeG 2000 o nbl g-quly dsbuon wnvlbl bndwds. Ou VBe ng ovds comssonn MpeG-2, JpeG 2000 nd MpeG-4, n hD nd SD oms.W ngd aSi nd ip nso ncs nd oono pDh nwok ngon, VBe ncods cn d lco nwok dcly o oug nwok d. t VBedcod ng comlmns ncod ng w fxbl

ccu. t VBe dcods cn b ngd n VBelco csss longsd ncods o fxbl conguon, ocongud s sndlon irDs. t VBe comsson mly sdsgnd o lbl nsmsson nd suos owd ococon (FeC) ov bo ip nd pDh nwoks.

x Nt Adat

Fo conn ocssng, Gss Vlly Npocsso s comc soluon ong g aSi dnsy w u o 700 Mb/sougu d , llowng smoo mgon om lgcynwoks o ip. t Npocsso os g lbly—

ncludng dundncy o ncs nd ow suls ndnncd monong o bo svc nd comonn b s.t uns cn dlv suo cbls o Sngl FquncyNwok-dd sms o dgl s l nwoks. Wdvncd ip smng, ull ossonl MpeG FeC suo,nd d ns cbls, Npocsso os un-vlld cbls.

Tc manant syt

t Gss Vlly XMS™ Xnsbl Mngmn Sysm osull QOS conol w ddcd lcom nsmsson dd-ono onbook-syl lnk con. Conollng bo Gss Vllynd d-y qumn, XMS sysm os ull ool-ogy vsbly nd dundncy conol o n nwok.

t Gss Vlly Gn QOS obs cn b usd o monond collc sms unnng on nwok—ong boqumn nd sm dundncy swcng.




sAles

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Conclusion

t dvlomn o comsson sndds s movng n sv-l dcons, ll subl o nx-gnon vdo nwoks.as s lcng MpeG-2 vdo s conbuon om,bodcss v coc o ducng b bydong MpeG-4 aVC o movng (ncsng) vdo qulyby mlmnng JpeG 2000. No s s du o cuncodc mlmnon lmons n lmons n comsson sndds mslvs.

Wl bo oms sll n nncy, y mungo on o bng commonly vlbl. tss v dmon-sd MpeG-4 aVC cn ovd sm cu qulynd lncy s MpeG-2 vdo usng gly ducd bndwd.in som css, us o MpeG-4 aVC cn sv u o 40%n nsmsson coss. t JpeG 2000 sndd, on ond, s sblsd sl n g b ‘cgoy’ s yclly qus n xcss o 100 Mb/s b s o yld qulymgs.

Usng JpeG 2000 cn sul n ducd dw coss nd os wo mon bns. JpeG 2000 s cbly o

cy 10-b, 4:2:2 vdo w lss n 100 ms lncy nd s lso cully good ndlng ncodng concnonsw mnml loss o cu quly s comssonsg.

rnc

[1] Advanced Video Coding for Generic Audiovisual Services ,itU-t rc. h.264 nd iSO/ieC 14496-10 (MpeG-4 aVC), itU-tnd iSO/ieC JtC 1, Vson 1: My 2003, Vson 2: My 2004,Vson 3: M. 2005, Vson 4: S. 2005, Vson 5 nd

Vson 6: Jun 2006, Vson 7: a. 2007, Vson 8 (ncludngSVC xnson): Consnd n July 2007, Vson 9: Mc 2009(ncludng MVC xnson).

[2] JPEG 2000 Core coding system, itU-t rc. t.800 (2002)/ Co.2 (08/2007) | iSO/ieC 15444-1:2004/Co.2:2008, itU-t ndiSO/ieC JtC 1, tcncl Cogndum 2: al 2008

[3] Wikipedia , ://n.wkd.og/wk/pSNr

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