TV 4K în anul 2018. Ce trebuie să cunoaștem despre TV 4K, întrebări etc.

Institutul national japonez de tehnologie a comunicatiei (NITC) tocmai a reusit sa emita si sa receptioneze un semnal de televiziune in ultra inalta-definitie ( de saisprezece ori inalta-definitie actuala ) via un satelit japonez, la debit foarte inalt. Acest test, o premiera mondiala, a avut loc la sfirsitul saptaminii trecute prin grupul audiovizual public NHK, virf de lance al televiziunii in ultra HD ( numita si Super Hi-Vision sau SHV ). Acest experiment a constat in emiterea catre un satelit a unui program in SHV de pe un site al NITC, si receptia imediata intr-un centru de cercetare de la NHK.Un semnal in SHV se distinge tehnic de un semnal TV actual (standard sau HD) printr-un volum de date mult mai ridicat, corolarul unei ameliorari semnificative a preciziei imaginii si sunetului. In SHV imaginile sint constituite fiecare din 33 milioane de puncte (sau pixeli), contra numai 2 milioane in actuala TV HD. 7680 X4320 va fi U-HD .Sunetul asociat este la rindul sau restituit in peste 20 canale audio, contra 6 in TV HD. Diferitele produse compatibile - camere, proiectoare etc sint in curs de dezvoltare.

Edited by softpedic, 20 May 2009 - 18:55.

Incredibil!! Voi fi nevoit să-mi instalez 20 de sateliți + subwoofer și voi  observa că machiajul prezentatoarei rubricii meteo se termină sun bărbie. Asta pe un display de 150". Serios acum, 7680x4320 poate peste 10-15 ani.

softpedic, on May 20 2009, 19:28, said:

tocmai au reusit de cativa ani incoace. am vazut pe viu anul trecut la IBC 2008 la Amsterdam RAI. Au avut nevoie de doua transpondere pentru asta. au mai experimentat impreuna cu BBC transmisia prin fibra optica de langa London Bridge, cu o camera speciala. au mai spus ca tehnologia va fi disponibila publicului larg aka home user prin 2025.

Edited by ghyo, 20 May 2009 - 20:31.

ideea este ca si ochiul uman are limitele lui ,ne putem juca cu efecte 3d dar cand vine vorba in a depasi pragul perceptiei detaliilor se cheama doar marketing......

Edited by amboomdth, 20 May 2009 - 20:50.

Exact...
eu cred ca ar trebui sa se limiteze la transmisii FULL HD macar vreo 20-30 de ani... cel putin pentru publicul larg

Inq, on May 20 2009, 21:15, said:

Japonezii spun ca teste mai avansate vor face din 2011, si estimeaza pentru anul 2020 inceperea transmisiilor pentru marele public.

 39de.jpg   51.68K   517 downloads C-am asa arata evolutia imaginii de inalta rezolutie, la noi nu sunt in stare nici de transmisie 1080i, am ramas ca pe vremea impuscatului, partial HD.

Ultra HDTV not around the corner, but certainly on the way
by Jeff Chabot on November 3, 2009


We haven’t heard much about Ultra High Definition Television (UHDTV) in the mainstream recently, but the next evolution in high-def is the subject of some industry speculation. Recent In-Stat research estimates content providers will be able to begin offering Ultra High Definition content for UHDTVs somewhere between 2017 and 2022.
Although it will be quite a long time before the technology hits any type of market saturation, In-Stat says there will be enough interest for companies to strategize long-term plans to develop Ultra Hi-Def as a marketable product.
The In-Stat research found the following (summarized):
• Early UHDTVs will begin being made available to consumers between 2017 and 2022.
• UHDTVs in Europe will approach 5% of households by 2021 (and over 28.2% by 2025)
• Japan is expected to be one of the early adopter countries of UHDTV
What is UHD? It’s an advanced video/audio technology that produces 16x the amount of current HD resolution. If you think your 1080p Blu-ray Disc is sharp, try multiplying that resolution by four or sixteen, and adding 4x the amount of audio channels.
Ultra HDTV will increase video resolution to either 3840×2160 lines (referred to as 4k) or 7680 x 4320 (8K resolution) — 16x what Blu-ray currently offers.
Now imagine a sound system utilizing 22.2 channels — not only are you watching high-definition, you are immersed in it.
Dr. Masaru Kanazawa of NHK (Japan’s broadcasting organization) is one of the original designers of HD. A few years back Dr. Kanazawa spoke of the emerging Ultra HD technology and was quoted as saying, “When we designed HDTV 40 years ago our target was to make people feel like they were watching the real object. Our target now is to make people feel that they are in the scene.”

Prin urmare, cam prin 2021 la noi ( EUROPA ), iar japonezii, cum altfel, mai inainte.  

Sunt curios unde pui 22.2 boxe intr-un apartament nenorocit Iti trebuie camera speciala pt asa ceva

softpedic, on 6th November 2009, 23:03, said:

bine zis Europa )) gresit zis "la noi" ) la noi prin 2050 ) zgripturoii nostri nu vor sa investeasca, doar sa scoata profit... banii n-au miros

Quote

Nici nu ma mira faptul.Cand am citit/auzit prima data de Inalta Definitie era tot facut de japonezi si cred ca in cadrul unui important eveniment sportiv (olimpiada sau ceva de genul) transmis in HD si asta la inceputul anilor 90 !

Poate cineva bine imformat sper sa detalieze

baribalu, on 6th November 2009, 23:11, said:

sala in care am vazut si auzit testele era destul de mare, daca esti prea aproape de ecran va trebui sa intorci capu' de prea multe ori,sa intelegi ceva din imaginea aia

eram la o distanta de aproximativ 8 metri si eram mult prea aproape iar sunetul... numai filme de groaza sa nu vezi in ultra hd (super hi-vision)

Edited by ghyo, 06 November 2009 - 22:30.

E vorba de fapt de realizarea transferului unui volum mare de date prin satelit. Sunt sigur ca tehnologia nu urmareste neaparat definitia ultra inalta (ar insemna o foaie de 16 ecrane 24" FHD (4 vertical, 4 orizontal) cu marimea pixelului obisnuita. Transmisia ca atare e importanta. Avest volum poate fi constituit din informatie 3D de exemplu.

The next major technical advance for television may not be 3D TV, as was being widely predicted a year ago, but UHDTV, or Ultra High Definition Television. Japanese broadcaster NHK is demonstrating the technology, which it calls "Super Hi-Vision" at a number of industry events, displaying a picture with a resolution of 33 million pixels (versus 2 million pixels for the top HDTV screens currently on the market. According to industry reports, a group assigned by the International Telecommunications Union to work out global standards for the technology have settled on the key ones. Christoph Dosch, chairman of the group, was quoted by Broadcast Engineering magazine as saying that it "promises to bring about one of the greatest changes to audio-visual communications and broadcasting in recent decades. Technology is truly at the cusp of transforming how people experience audio-visual communications." Current plans call for UHDTV monitors to be installed in various public venues around the world in time for next year's Olympic Games.

In vara olimpica a lui 2012, UHDTV in diverse locuri publice ! Presimt ca nu la noi.

softpedic, on 27th October 2011, 00:36, said:

Când am fost la ei în septembrie, am luat o broșură http://forum.softped...t...&p=10452011

softpedic, on 20th May 2009, 18:28, said:

Copii tai pe la 45 de ani au sa vada asa ceva ! SONY a anuntat urmatoarea modernizare de paneluri cu pixelul de alb format din 4leduri=avantaj al nuantarii de negru similar cu plasma,dar abia prin 2017 va intra pe piata ! in schimb SAMSUNG a anuntat inceperea introducerii in fabricatie de paneluri cu dubla rezolutie HD 3840*2160 LA INCEPUTUL ANULUI 2012 ! PANA SA AVEM NOI MURITORII DE RAND MACAR ASTEA , VA MAI TRECE CEVA APA PE DUNARE !

Incep sa apara primele camere 4K pentru public... iata un CANON de 10.000$

http://blog.gsmarena...k-still-images/

Asteptam tv-urile... eu nu ma bag la 4K mai devreme de 10-15 ani  

rz, on 4th November 2011, 14:00, said:

LG-ul a scos deja de anul trecut UHDTv, protitip binentels . Din 2013 cica vor intra in productie de masa.