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You’ve decided to upgrade your home entertainment system, or maybe your computer screen. Wandering through an electronics store, you’re bombarded with meaningless jargon 8 Common Terms You Need To Know Before Buying Your Next TV 8 Common Terms You Need To Know Before Buying Your Next TV When you go out to buy a new television, you might be a little confused by the many options available, all the features they have, and the jargon you need to wade through. Read More .

One of them is upscaling.

What is upscaling? How does it work? And is it all it’s cracked up to be?

What Exactly Is Upscaling?

Digital Video Resolutions

Upscaling converts low resolution material into a higher definition – or that’s what it’s purported to do anyway. It’s just one of the common terms you need to know 8 Common Terms You Need To Know Before Buying Your Next TV 8 Common Terms You Need To Know Before Buying Your Next TV When you go out to buy a new television, you might be a little confused by the many options available, all the features they have, and the jargon you need to wade through. Read More before buying your next 4K television, or any device that supports upscaling, like a Blu-ray player.

Upscaling has been around for a while – it happens when you output DVD video to your Full HD television.

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Simply put, upscaling produces video that utilizes your television’s or monitor’s maximum resolution, even when playing a standard definition video. Most flat-screen TVs have a 1920 x 1080p resolution, resulting in 2,073,600 pixels in total – that’s 1,920 across, multiplied by 1,080 rows of pixels. Playing a Standard Definition 720 x 567p movie, then, wouldn’t use all of the available pixels.

So instead of just using those 408,240 pixels, a device that supports upscaling – in the form of an upscaling Blu-ray player (like this Sony BDPS6500) or a 4K television – optimizes all those available pixels by ‘filling in the blanks’ and stretching the image across the entire screen.

It typically works using an interpolation (inferring new data by extracting from known elements) algorithm, and tells pixels what to do based on what those surrounding it are displaying, and then duplicating them.

In addition to this, many manufacturers apply sharpening software to market their products, thereby reducing pixelation or softening, often tampering with contrasts to make an image look more vivid. It makes their upscaled videos better than their competitors.

Upscaling Blu-ray Player, or 4K TV?

As mentioned earlier, upscaling can be handled by either a capable Blu-ray player, or by the television. The decision between buying a new Blu-ray player or 4K television depends on the media you watch more often.

DVDs are very popular, and Blu-ray discs are still a relatively niche market. If you want to upgrade, yet don’t want to scrap your DVDs and start your collection anew, upscaling Blu-ray players are tempting. After all, if you can’t see the difference between an upscaled picture and a HD one from a good distance (ie. one you’ll be comfortably watching television from), surely it’s worth doing. It’s a convincing argument, that’s for sure. Don’t be tricked by a player that boasts superior upscaling: in the end, your television is the limiting factor.

Some Blu-ray players can upscale to 4K (hence occasional ‘Mastered in 4K’ releases, capable of playing as standard and higher quality if used on a superior player), but in most cases, when playing a DVD for display on a 4K TV, the television will be responsible for making that leap to higher definition – indeed, it’s something it does with all signals. But even if a Blu-ray player is capable of upscaling to an impressive 4K, if your TV doesn’t support this, you’ll simply get the highest resolution your set is confined to, likely 1080p HD.

Before swapping your players, question whether a newer television set is more beneficial. Read our buying guide for more information on choosing a new HD TV TV Buying Guide: How To Pick The Right TV For Your Living Room TV Buying Guide: How To Pick The Right TV For Your Living Room When it comes to buying a TV, there's a lot more than what's on a spec sheet. By the end of this guide, you'll know exactly how to pick the right TV. Read More .

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If you mostly watch anything other than DVDs or Blu-ray media, then buying a new 4K TV would make sense. It would upscale all video input, including DVDs and even Blu-rays, to as near to 4K definition as possible.

Naturally, purchasing Blu-ray players will be the cheaper option. They’re typically below $200, while a 4K TV can cost a lot more. If you’re very invested in UHD TV and future-proofing your home entertainment How To Pick The Right Receiver For Your Home Theater Needs How To Pick The Right Receiver For Your Home Theater Needs Read More , you’ll be tempted by a 4K television.

4K Idiosyncrasies

Upscaling (also known as upconversion) sounds like you’re getting 4K video quality from 1080p video. That’s not what it is. And it’s far from perfect. It stands to reason that there would be problems with technology that forces a picture into duplicating its pixels to create a fair estimation of a higher resolution.

Whereas it’s implied to be all about precision, upscaling can’t add more detail than is already present. That’s why Blu-rays aren’t pointless: they give you the nearest definition to cinema without a 4K Ultra HD television Should You Buy A 4K / Ultra HD Television? Should You Buy A 4K / Ultra HD Television? About a decade ago, manufacturers started to sell what's now widely known as an HDTV. But now HD is old news, so the industry has decided to push another new technology; Ultra HD, also known... Read More (which has 3840 x 2160p); so yes, quality also naturally depends on the equipment used.

Image Interpolation

The main problem with upscaling is the possibility of visual artifacts, increasingly an issue with fast-moving videos. While some material might appear stretched, one notable trouble is the ringing artifact, which appears as a ‘ghost’ or further outline around objects. Blurring and distortion of any sort, especially, will be most noticeable the closer you are to your television or monitor.

Despite the lack of content thus far What Can You Actually Watch On a 4k TV? What Can You Actually Watch On a 4k TV? 4K TVs were definitely a hot gift this past Christmas—but what can you actually watch on one? Read More , 4K is what most movies are filmed in, and Joe Kane, former chair of the SMPTE Working Group on Professional and Studio Monitors, says that this has been common practise for at least two decades:

“As much as we’ve been producing in the 4K format, we didn’t store it because nobody thought we were ever going to use it! We would shoot in legitimate 4096 x 2160, produce in 4K but then archive in 2K.”

Better resolutions will always be desirable on desktop computers, and that’s why 4K computer monitors also upscale input to the full 3840 x 2160p resolution. Yet none of us use PCs or laptops to solely play movies, and the side-effect of a 4K screen is a very mixed performance. To start with, icons appear ridiculously small, but more so than that, if you want to play a game in all its detailed glory PC Gaming at 4K: Is It Worth The Money? PC Gaming at 4K: Is It Worth The Money? A resolution revolution is on its way. Ultra HD televisions and monitors are finally starting to drop to reasonable prices. Has Ultra HD matured, or is it still too much money for too little benefit? Read More , you’ll need a seriously good Graphics Processing Unit (GPU) What Is the Difference Between An APU, A CPU And A GPU? [MakeUseOf Explains] What Is the Difference Between An APU, A CPU And A GPU? [MakeUseOf Explains] Over the last five or more years, there have been a number of different terms swirling around to describe computer hardware. Some of those terms include but aren’t limited to APU, CPU, and GPU. But... Read More , which can be very costly!

Just like 4K TVs Why Buying A 4K TV Right Now Is A Waste Of Money Why Buying A 4K TV Right Now Is A Waste Of Money With an obvious price difference between the new generation of 4K TVs, and older Full HD models - do you really need 4K? We think not, and here's why. Read More , 4K computer monitors aren’t really worth it. Apple has already released an iMac with a Retina 5K display, but the problems with 4K monitors haven’t been ironed out yet.

Will You Upgrade?

Near-UHD is superior to SD, yes, even though you risk visual artifacts. But it’s not UHD either.

If you’re sitting at a sensible distance from the television, upscaled movies will appear clearer. Upscaling from a Blu-ray player a great option if you’re still attached to your extensive DVD collection. Don’t be fooled by showroom tricks Buying A New TV Or PC? Avoid Showroom Tricks That Cost You Money Buying A New TV Or PC? Avoid Showroom Tricks That Cost You Money Over the years I've become more and more resistant to their tactics and approaches, thanks mainly, I think, to the realisation that they haven't been entirely honest with me. Read More that make Ultra HD appear clearer than it actually is though.

Upscaling is a smart addition to your televisual set-up. But what do you think? Do you support upscaling, and if so, is it so you don’t have to ditch your DVDs? Or are you hooked on Blu-ray?

Image credits: Rustyclark via Flickr, TRauMa (Wikimedia Commons), Image Interpolation 2D, Bicubic (Wikimedia Commons)

  1. Koen
    November 6, 2016 at 4:36 pm

    So I'm interested in getting a Samsung 4K TV that has upscaling and eventually a Samsung 4K upscaling Blu ray player. I currently have a Yamaha reveiver which has 4K pass through (always on) and 4K upscaling (optional). My question is, which devices would I need to have upscaling on and can there be any cons of stacking upscaling?

  2. Ozzie
    October 4, 2016 at 8:43 pm

    I have a 4k TV and a regular blue-Ray player. If I want to play 4k BDs would I be happy with Upscaling? Also is a true 4k BD player backward compatible and will it upscale regular BDs and DVDs?

  3. Ozzie
    September 24, 2016 at 9:29 pm

    It seems like it's not true 4K. I have a 4k Samsung Curve. but is a 4k blue ray player backward compatible to DVD or even VCD?

  4. Edward Hosack
    April 22, 2016 at 10:57 pm

    i have a 4k tv and a oppo bdp 103 blue ray player, that upscales to 4k. if i purchase 4k dvd will i get the full affect of the 4k experience

    • Gloria
      April 23, 2016 at 4:28 pm

      You need a 4k blu-ray player in order to watch a 4k dvd. Blu-ray players that upscale won't work.

  5. Alejandro10
    April 3, 2016 at 11:19 pm

    Hi Philip my name is Alejando and I have a question, do I need to buy an upscaling Blu ray player or is it enough with the upscaling from my Tv? I own a samsung UNJU486500 its an UHD Tv but I don't know if it upscales automatically or if I have to able it at settings or something like that. I don't know either if it has a good upscaling quality or not. Thank you everyone for you answers. Im from México and native UHD Blu ray players haven't arrived here yet so I dont have that possiblility.

    • James
      June 8, 2016 at 6:57 pm

      Darn. I came here wondering this very same thing, I wish it was answered for you so I could know the answer as well.

  6. Tony Adams
    February 3, 2016 at 5:42 pm

    I have a new 4K uhd tv. Frequently there is a momentary disruption in the audio and video (lasting only a few microseconds). Cable input, HDMI cables have all been tested and are operating properly. Wondering whether this annoying little glitch is a result of up scaling. If so, thought I would contact manufacturer to see if a software or firmware update is being developed to address it.

    • Yusuf
      June 14, 2016 at 2:40 pm

      It probably you blu ray player or the dvd player you use not the tv. I had the same until i did a firmware update on my blu ray player and now I no longer get audio dropouts. I don't exactly know why it does it but it has something to do with compability between the blu ray dvd and the player not your hdmi or tv. Hope this helps.

  7. Derrik Pates
    November 27, 2015 at 3:36 am

    @John: Unfortunately yes, you'll be stuck with a player that can only upscale Blu-ray Disc content at best. Blu-ray Disc players won't have drives ready for the new triple-layer media, and they won't have HEVC hardware decoders needed for Ultra-HD Blu-ray Disc movies. The new players will be a significant amount more money than the relatively inexpensive upscaling players on offer from Samsung, Sony, LG and others. Unless your UltraHD TV does particularly bad scaling, you'll probably be fine hanging back and waiting for UltraHD Blu-ray Disc to hit early next year.

  8. John
    November 23, 2015 at 1:19 am

    So, I have a Question. I have a 65" UHD TV. If I buy a 4K upscaling BD player now, will it work with 4K BD's when they hit shelves? Or will I be stuck with a player that only has the ability to upscale, not play native 4K from the disc.

  9. Howard Blair
    August 30, 2015 at 5:53 pm

    This is nothing new, and I don't see why the article tries to present it as such. It's been around since Video for Windows in Windows 3.1; it was used if you resized a (thumbnail-sized) AVI playback window.
    DScaler/dTV has been around since at least 2001, and was one of the first 3:2 pulldown software.
    Windows Media Player for Windows 95 supported resizing its window, scaling the output to match, as well as "full-screen" mode.
    Old DVD players, which decoded "wide-screen" movies on a standard CRT TV, would downscale 720x480 video onto a TV screen, where the typical resolution is 480i, or about 352x240 interlaced.

    • Mihir Patkar
      August 30, 2015 at 6:04 pm

      I don't think Philip's intention was to present it as something new, Howard. This is part of our "Technology Explained" series, which isn't about "newness" as much as just breaking jargon down for someone who doesn't know about it.

      • Howard Blair
        August 30, 2015 at 10:16 pm

        Ah. Mentioning some of its history (beyond "DVD players that upscale to HD," which is rather recent) might have been in order, then, as well as the fact that we've been using it for decades without realizing it (downscaling DVD video to SD TVs, for example, or hitting "Full Screen" in media players or YouTube).
        I appreciate demystifying things...but you also have to let people know how we've also taken this for granted.

        • Philip Bates
          August 31, 2015 at 12:00 pm

          Yeah, Mihir's right in that I wasn't trying to present it as new, but yeah, I do see what you mean; I didn't mean to imply there wasn't a history of upscaling. I considered including downscaling, but I wasn't sure it was relevant to anyone making a choice about buying, for instance, a new TV or monitor (who I mainly aimed this at), so decided not to.

          Thanks for commenting, Howard. :)

  10. David Patterson
    August 28, 2015 at 6:25 pm

    An excellent quality reference BluRay player like the OPPO BDP-103 Blu-ray Disc Player; is a good choice. It plays all disc types, CD, SACD, music DVD, DVD and bluray.

    And will a very good job upconverting you movie discs.
    It is also a fraction of the cost of comparable high end disc players.

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