{"id":116397,"date":"2017-03-28T17:47:27","date_gmt":"2017-03-28T15:47:27","guid":{"rendered":"https:\/\/mygaming.co.za\/news\/?p=116397"},"modified":"2017-03-28T17:48:40","modified_gmt":"2017-03-28T15:48:40","slug":"the-difference-between-1080i-and-1080p","status":"publish","type":"post","link":"https:\/\/mygaming.co.za\/news\/hardware\/116397-the-difference-between-1080i-and-1080p","title":{"rendered":"The difference between 1080i and 1080p"},"content":{"rendered":"

Display specifications can be complicated, considering there are multiple factors to consider \u2013 like resolution, refresh rates, contrast ratio, aspect ratio, display size, and HDR capabilities.<\/p>\n

When looking at TVs and the source signals they receive, a point of contention is the\u00a0difference between 1080p and 1080i, and what it means for the average TV owner.<\/p>\n

Below is a simple explanation of what the differences are and what you need to know about the standards.<\/p>\n

Progressive and Interlaced<\/h3>\n

1080p and 1080i refer to a display resolution of 1,920 x 1,080 pixels, and\u00a0it is the suffixes attached to the resolution number\u00a0that you must pay attention to.<\/p>\n

The \u201cp\u201d in 1080p stands for \u201cprogressive\u201d, while the \u201ci\u201d in 1080i means \u201cinterlaced\u201d.<\/p>\n

These terms refer to the scanning technique used to display, store, and transmit images.<\/p>\n

Progressive scanning is a common method for\u00a0displaying video, with entire images displayed a certain amount of times per second. This depends\u00a0on the frames per second of the source video and the refresh rate of the TV.<\/p>\n

Interlaced scanning is different, and involves a technique in which alternating halves of an image are displayed per interlacing \u201cfield\u201d.<\/p>\n

A single frame of interlaced 1080i video consists of two sequential 1920 x 540 images, with the first field consisting of all odd-numbered vertical pixel lines and the second all even-numbered pixel lines.<\/p>\n

Both these half-images together create a frame every 30th of a second.<\/p>\n

This means if a second of 1080i video consists of 30\u00a0\u201c1,920 x 1,080\u201d frames, it includes 60\u00a0\u201c1,920 x 540 fields\u201d.<\/p>\n

An important note is that when the source video is 1080i\/60, there are in fact no full images \u2013 as each of the 60 interlaced fields occupy a different point in time and 30 interlaced frames are displayed per second.<\/p>\n

This results in a slight offset or reduction in quality\u00a0when fast movement is displayed or the video is deinterlaced and viewed\u00a0on a 1080p panel.<\/p>\n

\"Deinterlaced<\/a><\/p>\n

Visual Difference<\/h3>\n

Due to the fidelity and fully-displayed frames, a 1080p video delivers a sharper and more refined image which can provide better quality during scenes with lots of motion.<\/p>\n

Interlaced video suffers in scenes with lots of motion, as it only displays half an image at a single point in time. This makes it difficult\u00a0to display fast movement.<\/p>\n

Compared to progressive scan, interlaced video has more jagged edges and motion artifacts.<\/p>\n

Visual quality of 1080i video can also depend on your TV, as some video processors are better at deinterlacing video than others.<\/p>\n

Broadcast and Decoding<\/h3>\n

Currently, DStv broadcasts in 1080i and 720p, and does not offer Full HD quality.<\/p>\n

Users who use a 1080p TV to watch DStv are in fact watching deinterlaced 1080i video or a 720p broadcast.<\/p>\n

A major reason for 1080i broadcasts is reduced bandwidth requirements and infrastructure limitations.<\/p>\n

DStv\u00a0said<\/a>\u00a0<\/strong>in 2016\u00a0it would not offer Full HD broadcasts any time soon, as their implementation would require changes to broadcast infrastructure and use more bandwidth than the current broadcast resolutions.<\/p>\n

This article first appeared on MyBroadband <\/a><\/strong>and is republished with permission.<\/em><\/p>\n

Now read:\u00a0Most-watched TV shows in South Africa<\/a><\/strong><\/h4>\n","protected":false},"excerpt":{"rendered":"

When looking at TVs and the source signals they receive, a point of contention is the difference between 1080p and 1080i, and what it means for the average TV owner.<\/p>\n","protected":false},"author":226,"featured_media":105003,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_sma_x_autopost_enabled":true,"_sma_x_custom_text":"","_sma_x_autopost_status":"idle","_sma_x_autopost_error":"","_sma_x_post_id":"","_sma_x_attempts":0,"footnotes":""},"categories":[7],"tags":[24175,17560],"class_list":["post-116397","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-hardware","tag-1080p-versus-1080i","tag-resolution"],"_links":{"self":[{"href":"https:\/\/mygaming.co.za\/news\/wp-json\/wp\/v2\/posts\/116397","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/mygaming.co.za\/news\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/mygaming.co.za\/news\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/mygaming.co.za\/news\/wp-json\/wp\/v2\/users\/226"}],"replies":[{"embeddable":true,"href":"https:\/\/mygaming.co.za\/news\/wp-json\/wp\/v2\/comments?post=116397"}],"version-history":[{"count":1,"href":"https:\/\/mygaming.co.za\/news\/wp-json\/wp\/v2\/posts\/116397\/revisions"}],"predecessor-version":[{"id":116399,"href":"https:\/\/mygaming.co.za\/news\/wp-json\/wp\/v2\/posts\/116397\/revisions\/116399"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/mygaming.co.za\/news\/wp-json\/wp\/v2\/media\/105003"}],"wp:attachment":[{"href":"https:\/\/mygaming.co.za\/news\/wp-json\/wp\/v2\/media?parent=116397"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/mygaming.co.za\/news\/wp-json\/wp\/v2\/categories?post=116397"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/mygaming.co.za\/news\/wp-json\/wp\/v2\/tags?post=116397"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}