Cinema 4K

CoolMax · 发表于 2012-5-20 11:14 PM

本帖最后由 CoolMax 于 2012-5-20 20:23 编辑

什么是Cinema 4K？

先说一下HDTV，HDTV最高分辨率是1080P。代表逐行扫描1080线。
分辨率为1920x1080。

4K的计算方法有点不同，4K代表4000，是指的水平分辨率。
常见的规格有：
Digital Cinema 4K: 4096x1714
Digital Cinema 4K: 3996x2160
Academy 4K: 3656x2664
Full Apeture 4K: 4096x3112

所以，比HDTV 1080P的分辨率高4倍。相当于4个1080P的HDTV拼接起来的分辨率。
比较下图：
800px-Digital_video_resolutions_(VCD_to_4K)_svg.png

800px-Digital_video_resolutions_(VCD_to_4K)_svg.png

Canon最新的顶级DSLR机型，已经可以摄制4K的Video。说DSLR不能摄像，是错误的。
其它还有:
Dalsa Origin - released in 2006 and records at 4096 × 2048 (8.4 megapixels)
Red One - released in 2007 and records at 4096 × 2304 (9.4 megapixels)
Red Epic - released in 2011 and records at 4096 × 2160 (8.8 megapixels)
JVC GY-HMQ10 - released in 2012 and records at 3840 x 2160 (8.3 megapixels)
Sony CineAlta F65 - released in 2012 and records at 4096 × 2160 (8.8 megapixels)
Canon EOS C500 - to be released in 2012 and records at 4096 × 2160 (8.8 megapixels)
Canon EOS-1D C DSLR - to be released in 2012 and records at 4096 × 2160 (8.8 megapixels)

4K Video有少量YouTube的样本，有兴趣可以去看看：
1, http://youtube-global.blogspot.c ... 4k-video-comes.html
2, Search: 4K Video Samples

那么，怎样才能在家里也可以欣赏4K的Video呢？

Don't be sad,
其实，4K的液晶电视的原型已经有了。分辨率是QFHD：3840x2160.
需要使用4个HDMI接口。售价55吋在$10K左右。

随着时间的推移，价格也会越来越大众化。

silicon_beaver · 发表于 2012-5-20 11:39 PM

--- 售价55吋在$10K左右。

Too expensive. normal product is 2K or lower.

源济 · 发表于 2012-5-21 12:05 AM

RedCedar · 发表于 2012-5-21 12:16 AM

Thanks CoolDai. Do we know who is making the graphic chips ?

licai5688 · 发表于 2012-5-21 07:42 PM

wnd4 · 发表于 2012-5-21 08:25 PM

RedCedar 发表于 2012-5-21 01:16
Thanks CoolDai. Do we know who is making the graphic chips ?

co-ask this question.

CoolMax · 发表于 2012-5-22 05:03 PM

RedCedar 发表于 2012-5-20 21:16
Thanks CoolDai. Do we know who is making the graphic chips ?

You mean light engine?

It's DLP

RedCedar · 发表于 2012-5-22 08:26 PM

CoolMax 发表于 2012-5-22 18:03
You mean light engine?

It's DLP

Thanks! vaguely remember INTC was in that business (DLP).

RedCedar · 发表于 2012-5-22 08:38 PM

CoolMax 发表于 2012-5-22 18:03
You mean light engine?

It's DLP

叹，我还未买一个大的1080p电视. 酷大就推出4K. 我只是无法赶上.

RedCedar · 发表于 2012-5-22 08:40 PM

CoolMax 发表于 2012-5-22 18:03
You mean light engine?

It's DLP

Thanks 酷大! I almost thinking about nvda/glw.

CoolMax · 发表于 2012-5-23 01:23 AM

RedCedar 发表于 2012-5-22 17:26
Thanks! vaguely remember INTC was in that business (DLP).

DLP from TI

RedCedar · 发表于 2012-5-23 11:08 AM

CoolMax 发表于 2012-5-23 02:23
DLP from TI

right, right. Thanks!

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[知识] Cinema 4K

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