T迅播影院www.xunbo.xyzamta Gabrichidze’s documentary ’The Trader’ claims Sundance Film Festival awardFilmmaker Tamta Gabrichidze has been unveiled among the prize-winners of Sundance Film Festival after her documentary The Trader claimed the Short Film Jury Award at the renowned event on Tuesday.The young director’s short, which was selected by cinema platform Netflix for global distribution earlier this month, had three screenings at Sundance starting last week.It was announced among winning films of the Sundance Shorts Awards, while the festival is set to continue running through Sunday.The Trader, also known as Sovdagari, follows its principal protagonist Gela, traversing the Georgian countryside looking to sell second-hand clothing and everyday items from the back of his minibus.Gela does his trading in villages and towns where potatoes, not money, is the main currency of exchange.Young and old peer into his truck, their eyes lighting up at the sight of modern conveniences like sponges and lint brushes. It’s a riddle that pits rural value against urban valuation, dirt versus gold”, said a preview of the short by Netflix.Produced by Ilia Tavberidze, the documentary was picked for Sundance’s 2018 shorts program that highlighted women filmmakers.The festival’s award is the second highlight for The Trader after the Best Short Documentary Award of the 2017 Hot Docs Canadian International Documentary Festival, where it premiered.It is the fifth work for Gabrichidze, who has directed short and documentary films starting with Ms. Nature in 2009.
（1）高清（High Definition），是我们目前相对比较熟悉的一个词语。高清是在广播电视领域首先被提出的，最早是由美国电影电视工程师协会(SMPTE)等权威机构制定相关标准，视频监控领域同样也广泛沿用了广播电视的标准。将“高清”定义为 720p、1080i与1080p三种标准形式，而1080P又有另外一种称呼—全高清（Full High Definition）。关于高清标准，国际上公认的有两条：视频垂直分辨率超过720p或1080i;视频宽纵比为16：9。
（2）标清（Standard Definition），是物理分辨率在720p以下的一种视频格式。
（3）超高清（Ultra High-Definition），这是我们今天的重点内容。来自国际电信联盟(International Telecommunication Union)最新批准的信息显示，“4K分辨率 (3840×2160 像素)”的正式名称被定为“超高清Ultra HD(Ultra High-Definition)”。同时，这个名称也适用于“8K分辨率(7680×4320像素)”。CEA要求，所有的消费级显示器和电视机必须满足以下几个条件后，才能 贴上“超高清Ultra HD” 的标签：首先屏幕最小的像素必须达到800 万有效像素（3840×2160），在不改变屏幕分辨率的情况下，至少有一路传输端可以传输4K 视频，4K内容的显示必原生，不可上变频，纵横比至少为16:9。 与此同时，电视行业里，同对高清电视机命名为HDTV一样，对于4K电视机的命名，美国消费者电子协会针对4K电视进行了一个官方的命名UHDTV，这个命名也就是超高清电视。
Ps: 720p格式，分辨率为1280×720p/60Hz，行频为45kHz 。
4K分辨率是1080p的4倍3840×2160 = 1920×2×1080×2
8K分辨率是4K的4倍7680×4320 = 3840×2×2160×2