Motion on TVs: Motion Blur Pictures (1/5) –

Motion on TVs: Motion Blur Pictures (1/5) –

Hi, I’m Cedric from This is the first video in a series about
motion. Motion is a complex subject and there is a lot of misconceptions about it. Hopefully
the next few videos are going to help clear it up. Today’s subject is how can we actually
capture motion blur on in a photo. It might seem easy at first, but matching what you
see with your own eyes when following a moving object is not that straightforward.
Motion all depends on your reference point and whether your eyes are moving at the same
speed as the moving object. A good test to illustrate this is from First,
fix with your eyes the top UFO, without moving them. You’re going to see white vertical lines.
Then follow the second UFO with your eyes. You’re going to see a white background with
moving black squares. So what is happening here? In real life, when
your eyes are following a moving object, that object will always appear centered in your
field of view. On a screen though, the moving object is limited by the frame rate. It jumps
from one point to another. At the beginning of the frame, the object appears centered
in your field of view, but when your eyes continue to move, the object will shift slightly
to the left in your field of view. That back and forth won’t actually be perceived by the
eye assuming the frame rate is high enough, instead the eyes are going to perceive a blur
starting from the binning to the end position. We’ve now moved to our test room to actually
show you what it looks like on a real TV. If you were to take a normal picture, it wouldn’t
really represent what we see with our own eyes. Which is why the camera needs to move
at the same speed as the moving object. We are using a camera slider to do so. If we
take a normal picture. It looks like this. Which is far from what we see with our own
eyes. But if we take a picture while the camera is moving. It’s going to look like this. Which is a lot closer to what we see in real life. The difficulty in doing so is the camera needs
to move at exactly the same speed as the moving object. Mark Rejhon from invented
a temporal pattern to help for this. The pattern is composed of four vertical lines of vertical
lines, each displayed for one frame. The camera shutter speed is set to four frames.
If we go too slow. You can see that lines are tilted to the left. If we go too fast. The lines are tilted to the right. It’s only if you got the exact same speed as the object that the lines are going to be aligned. So that is how we take the motion blur pictures
for our reviews. The next few videos are going to go into more details on how to interpret
these pictures and what varies between TVs. If you want to know more about motion, click
the link in the description below. And if you liked this video, subscribe to our channel,
and see you next time!

Only registered users can comment.

  1. This is kind of complex to measure, really ingenious approach from him.
    Hopping for the results!
    Great channel, deserve more views and subs!

  2. I hope we get other informative videos like on judder, but I guess this is not quite in your field on reviewing TVs.

  3. I have the Ks8000 television, I am seeing a lot of motion blur. I followed your calibration settings. I'm seeing micro stutter as well, at times making it unwatchable. I don't know what to do

  4. Excellent video of the testing technique that we invented — thanks for giving Blur Busters appropriate credit! For readers interested in the corresponding peer-reviewed conference paper (co-authored with, Keltek and NOKIA), see

  5. Cannot wait for another great year from you guys! Really wanna see 2017 models reviewed when they come out, and look forward to more content like this from you guys. Thanks!

  6. From what I have seen in person. Sony is ALWAYS on top of the motion game. OLED kinda gets close to it for some content. But Sony is as smooth as it gets in person.

  7. I hate motion jutter. Bought the latest Samsung 65" flat 8-series and the motion jutter Is horrible. There's no setting to fix it either

  8. Picked up the Sony XD80 with your expert analysis on how it handles motion. It was a toss up between input lag and motion blur, compared to the KU6300 and motion blur won over for me. Sony's panel handles this a lot better and I don't notice the higher input lag of the two at all.

  9. Hi, if decreased brightness /30-35/ and increase the backlight /15-20/ will not be the received normal quality picture without pmw – KS8000

  10. Please give me an advise. I've made a test through TEST UFO (Chrome, vsync compatibile). It shows me that my refresh rate is 60 Hz. Now I'm wondering cause I have a Samsung KS7000 – it has a 120 Hz panel for sure. So… Is the result connected with my Asus laptop settings (GPU)? Moreover I can't enable in Windows monitor settings proper refresh – max. setting is still 60 Hz. Any ideas? Is it my fault or Samsung's given me a fraud tv?!

  11. Plasma TV dont has this motion blur . I have Panasonic and LG plasma TV and they are better that my other LCD or LED , even OLED is not the same level compere with PLASMA !

  12. judder is when you crank up the motion plus up it rips the picture in half in small skinny things like sticks and 24p content will tear at the tops and bottom with here and there with fast moving things, watch 60 fps content or more for judder free viewing

  13. Man! you've save my life from local store TV salesmen. Recently, they've told me how QLED has surpass OLED TV's.

  14. Hi, firstly of all congratulations for so useful channel. Secondy, I would like you to answer me some questions about motion blur if it is possible. Thanks. Some months ago I got the Sony 49×9005 to play in my ps4 pro. I have cheked noticeable blur in game mode, whereas my other tv set 1080p Sony 40W905a doesn't show any blur. As for my 49xe900 some games perform at 1080p and my first question is, can the tv rescaled accion add more blur to the movement of the image? Another question is, some games takes 4k resolution by checkerboarding, can the checkerboard tool add more blur to the image in comparision with the 4k native resolution? Other question, if I compare playing with the motion interpolation, is a similar experiencie regarding blur to playing at 120fps in this tv? Another one, Is my 100hz tv (Sony x9005) more likely to have more blur in my ps4 pro at 30 or 60fps because of the persistence than a 60hz tv when I play a game at 30fps or 60fps? And finally, Are the miliseconds tested in a tv comparable with the same miliseconds of a monitor to know which one shows more blur? Please, let me know your opinion. I'm very interested in being answered. Thank you!!!

  15. One of the misconceptions out there is people equating motion blur produced in real life (e.g. how a car wheel appears blurred in motion) and that produced by modern displays. They are not the same.
    Virtually all displays on the market today have extremely high levels of motion blur that would never happen in real life. This is because of the fundamental way these displays work (the sample-and-hold method and the limited refresh rate). Open a window with text on any of your lcd/led/oled screens and try to slowly move the window and track a word in it and see how easily it starts to blur, and does so more and more as you move the window faster on the screen; something that would not happen with an actual paper with text.
    Essentially, the best way to solve motion blur is to increase display refresh rates and content frame-rates to much higher levels than today (120-240-480-960hz/fps and beyond). That is an enormous challenge, but it's the best way to achieve crystal clear motion images.

  16. French accents change the inflection of English words so much. It almost sounds like they're speaking a different language. Awesome video, btw.

  17. Interesting..
    But what do you select your TV settings to make it "just work normal?" like TVs used to do..

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