Interlacing

Hi,
I need to deinterlace some video since there are some bad artifacts- the usual jagged edges, bad motion etc.
I usually solve this with the interlacing filter in FCP through a little trial and error, but this is not doing the job for my current work. Are there any more advanced steps I should be taking? I appreciate any advice.
Ben
G5 Mac OS X (10.4.8)

If your interlaced footage is going to be played back on an interlaced display (like a television), the interlacing won't be visible. If it's going to be played back on a progressive display (like a computer screen), there should be a setting in your compression software that will apply a de-interlacing effect when you encode.
Good luck,
Zap

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Mac mini on a LCD TV which does not support interlace mode

Dear all,
I am going to buy a new Mac mini and I wish to connect it to a Samsung LCD TV 37A656A1F (serie 6.
The TV manual says that it does not support the interlace mode. I then deduce that it supports progressive mode only.
My question: Does it mean that this LCD TV model cannot be used as a monitor for a Mac mini?
Please give a help to me

All computer monitors are progressive mode displays. Therefore all computers, including the mini, are very comfortable running progressive mode. It is their natural state. It is more a problem when a computer has to run interlace mode in order to support a display. That is when there is trouble. So I think you have nothing to worry about if your Samsung runs in progressive mode.

Why is the Mini Interlacing 1080p?

Hello All,
I recently purchased the prior 2011 Mac Mini with the following specs:
4 GB 1333 MHz DDR3
2.5 GHz Intel Core i5
AMD Radeon HD 6630M 256 MB
OS X 10.8.4
I also purchased an Asus 22" LED HD, (1080p) screen (VS229H-P) that I've attached via hdmi.
On my desktop and in most programs everything looks fantastic on screen and is perfectly clear. However an interesting things keeps happening every time I play a game in full screen mode. If I keep the game in full screen resolution of 1920x1080, it appears to convert to 1080i. The screen, while visible, appears to take on this distorted vibrating motion that is consistent with what I know happens with interlacing. I also tested this out of game by changing my desktop resolution in "display preferences" to 1080i instead of 1080p, and it did exactly the same thing, which confirmed my suspicion that it was interlacing.
When I take the game out of full screen mode and put it in windowed mode at the 1920x1080 resolution, it's crystal clear, no interlacing. As soon as it's back to full screen, interlacing is back.
I've tested this with multiple games and of the 10 I've tested only three do not interlace, two of those three happen to be purchased through the app store. Unfortunately I'm limited on trying alternative connection options since the mini only has hdmi, or thunderbolt connections - no mini display port. The screen only accepts hdmi, dvi or avg. While I know there are converter adaptars like hdmi to dvi, I'm hesitant to jump in and buy them as I don't know if they'll resolve the issue.
Question here is, why is this happening? Is it an application error, or a mac error in transmitting the hd signal to my screen? Is it possible to change the way my mini is transmitting the signal to each game? Might there be some setting I need to check on my monitor that I've missed?
I currently play in windowed mode or at a lower resolution which works, but is less than satisfactory for me and I'd like to explore a solution if one exists.
Any help or if others have had similar experiences and had any work arounds that they could share, would be sincerely appreciated.
Thanks in advance,
Joe

It is a game error. Contact the game publisher and tell them which games don't do this. Many games have preferences within the game themselves to choose the display preferences. Some games love to force screen settings on you.

Interlace problems with moving objects using iDVD

I had an MP4 file (created by a 3rd party) from a Hi-8 analog tape which has some interlace artifacts on moving images (left image of boy) but not too bad. When the MP4 files was imported into iMovie 11 the interlace artifacts smoothed somewhat - that was OK (right image of boy). The camera was still and the boy was moving. Vertical lines on stationary objects are OK in all images. These are screen captures from the Mac of the mp4 played through quicktime and the same file imported into iMovie 11 and played. I paused both to take the screen capture.
The completed project in iMovie 11 looked OK when previewed prior to rendering. These are 20 year old videos so my expections were being met.   I rendered the project with iDVD to the hard drive first and then to a DVD with the same poor imaging result on the moving object. I am using a new Macbook Pro I bought in early January which came with iMovie 11 and iDVD Ver 7.1.2 (1158). Running Mac OS X 10.7.3 Macbook Pro 2.3 Ghz Corei7   8GB 1333 Mhz DDR3.
I couldn't screen capture from the MAC DVD player screen to illustrate the poor result (got a checkerboard screen) so I took a photo of the screen and imported that (below). The moving boy on the left is from an iMovie 11 screen capture, the image on the right is the moving boy from the rendered DVD I paused on the Mac (and took a pic of).
Below a close up of the poorly rendered moving boy viewed on the resultant DVD. This translates into a horrible rendition of any quick moving object. It happens with any moving image - i.e. a pan across a room with straight vertical lines like edges of a wall will show as serrated and poorly rendered edge. I used a trial version of the Daniusoft DVD creator with the same result! I am at a loss on how to resolve this issue. Any thoughts out there??
I had previously used Pinnacle Studios on my old XP PC which worked great on other tape's Mpeg files and created great DVD's (never had an interlace problem) ... until my computer died ..... so I figured Apple and associated software should be at least equal if not a superior product.   Now I'm not too sure!

I had an MP4 file (created by a 3rd party) from a Hi-8 analog tape which has some interlace artifacts on moving images (left image of boy) but not too bad. When the MP4 files was imported into iMovie 11 the interlace artifacts smoothed somewhat - that was OK (right image of boy). The camera was still and the boy was moving. Vertical lines on stationary objects are OK in all images. These are screen captures from the Mac of the mp4 played through quicktime and the same file imported into iMovie 11 and played. I paused both to take the screen capture.
The completed project in iMovie 11 looked OK when previewed prior to rendering. These are 20 year old videos so my expections were being met.   I rendered the project with iDVD to the hard drive first and then to a DVD with the same poor imaging result on the moving object. I am using a new Macbook Pro I bought in early January which came with iMovie 11 and iDVD Ver 7.1.2 (1158). Running Mac OS X 10.7.3 Macbook Pro 2.3 Ghz Corei7   8GB 1333 Mhz DDR3.
I couldn't screen capture from the MAC DVD player screen to illustrate the poor result (got a checkerboard screen) so I took a photo of the screen and imported that (below). The moving boy on the left is from an iMovie 11 screen capture, the image on the right is the moving boy from the rendered DVD I paused on the Mac (and took a pic of).
Below a close up of the poorly rendered moving boy viewed on the resultant DVD. This translates into a horrible rendition of any quick moving object. It happens with any moving image - i.e. a pan across a room with straight vertical lines like edges of a wall will show as serrated and poorly rendered edge. I used a trial version of the Daniusoft DVD creator with the same result! I am at a loss on how to resolve this issue. Any thoughts out there??
I had previously used Pinnacle Studios on my old XP PC which worked great on other tape's Mpeg files and created great DVD's (never had an interlace problem) ... until my computer died ..... so I figured Apple and associated software should be at least equal if not a superior product.   Now I'm not too sure!

How can I determine if certain footage is interlaced or progressive?

Hi everyone,
I shoot and edit my own ski/snowboard films every year. I use a Sony HDV V1U. When filming, I constantly switch between 30p and 60i depending on the shots. I do this because 60i can provide smoother slow motion in post. Problem is, when I am editing the footage, it is extremely difficult to tell what's progressive and what's interlaced. My computer monitor, like all, is progressive, so interlaced footage looks just like 30p. One way I can tell is by adjusting the clips speed to slow motion, then judging by how Premiere handles the frame blending, I know what it is. But that is not practical for a massive project. A simple solution would be preveiwing on an external monitor, but from what I have read you cannot stream HDV back to a camera from the timeline, and I do not have money for a special capture card.
So my question is, is there any way to playback HDV on an external monitor (my TV or camera LCD) without a special capture card, or is there another easy way to determine 60i from 30p on Premiere's timeline? Thanks.
Here's my specs:
Premiere Pro CS3
Sony HDV V1U camcorder
Windows vista 64bit
Intel quad CPU Q9550 2.83 GHz
8 GB ram
Nvidia GTX 260 graphics card

The problem is the files are not all seperate. In one single file of 45 mins of HDV footage, there is a mixture of 60i and 30p, but the computer will always think it is 60i. I have been filming this way for years, and mixing the 2 record modes is definately the way to go. In my past projects, I was working with DV so it was not a problem.

HDV 1080i to Standard def DVD "Ken Stone" method- interlace problems, help!

Greetings,
I am on a tight deadline to produce a standard def DVD for an art exhibit, from HDV material that was imported and edited natively in FCP 7 as 1080i. I used the "Ken Stone" method of exporting the 10 minute sequence using QT conversion, as a pro res 422 HQ quicktime movie, then I took it into compressor 3.5 to make a Mpeg-2 file for a standard def DVD.
The problem is that the video that came out of compressor, when simulated in DVD SP 3.5 (and also when burned on DVD) has weird "interlaced" looking edges whenever there is movement in the video. It is a figure against a black background, and whenever the figure moves back and forth against the black background, the edges of the figure show interlaced-looking lines. The rest of the video where there is slow movement looks fine. BTW, motion was set to "Best" in compressor.
What am I doing wrong? was there something not mentioned in Stone's walk-thru, having to do with de-interlacing, or something I have missed? Is there a better way to produce a standard def DVD from HDV 1080i material?
Thank you so much for your help. I am down to the wire on this one...
AKJ

exporting the 10 minute sequence using QT conversion, as a pro res 422 HQ quicktime movie...
You are adding an unneeded compression cycle for a start. Export with QuickTime Conversion always recompresses your footage, even when you use the same settings as your Timeline.
Export to QuickTime with Current Settings, Self Contained will give you a Master file that is identical to what you edited.
weird "interlaced" looking edges whenever there is movement in the video...
If your source material is interlaced it will look odd on a computer monitor. It will display correctly on a TV set.
having to do with de-interlacing, or something I have missed?
Deinterlacing will throw away half of the vertical resolution. Bye bye HD. No good can come of that, right?
What is your intended delivery format? Does the method that you are currently using to view the material compare with how the end product will be seen?

Should i be able to see interlacing on the computer display?

I'm trying to verify if i have things set up properly.
If i'm working in a timeline that is DV NTSC and i've brought in elements from after effects and as well have moving images within FCP, should i be able to see the interlaced lines in FCP?
It looks okay on the broadcast monitor but i'm trying to figure out if interlacing on ftg/renders should be visible on the cinema display.
a simple yes, no and a sentence if you've got the time would be nice.
thanks

You can observe the presence of interlacing on a computer display only if the Canvas (or Viewer) are set to display 100% size and the video is paused. The interlacing will appear as a comb effect on moving objects. You can not observe interlacing with a computer display on running video.

Best way to work with interlaced and progressive clips in the same timeline

I´m shooting with Sony MC-50E camera in 1920x1080, 50i. When importing with Log & Transfer I can work with ProRes 422 files in interlaced mode. I have to mix the footage with video screencapture which is progressive (ProRes 422). The final videos are for web only so it should end up as progressive H264 videos. I´m getting good result if exporting to H264, 1024x576 with deinterlacing enabled, but exporting to full HD gives typical interlaced lines in the picture. How can I avoid this and what is the best solution for working with both interlaced and progressive clips?

Deinterlace in Compressor using Frame Controls, Best settings. You can reconnect the deinterlaced files to your project, if you've already edited, but you may need to copy and paste the clips in your sequence to a new 25p timeline, then Remove Attributes, Basic Motion.
When you're ready to export your sequence, use Quicktime Movie, Current Settings, Self-contained. Take that file to Compressor to transcode back to h.264.
The Apple T.V. preset is very good.

AVCHD interlaced sequence export to progressive (h.264) with Premiere Pro CS5.

Hi !
I have searched everywhere on the web (and this forum) for an appropriate answer.
Here is the problem :
I have used AVCHD (upperfields first / square pixels / 1080i30(i60)) footages to make a movie.
The primary sequence settings are correct :
AVCHD 1080i30(i60) square pixels
The files play fine in Premiere, and the montage was flawless in high 1080i quality.
I have exported 5 seconds of the movie into raw "AVI Microsoft uncompressed" files, so I can import them in "After Effects" to had some texts and graphics. When done, I re-imported them into the Premiere's sequence. (same AVI uncompressed format).
Playback works fine. The movie looks great and flawless, and has no interlacing artifact.
HOWEVER : When I want to export this sequence into a MPEG H.264 progressive final file, there is some gerkiness on the parts where the "AVI" files were added.
It looks as if it had been interlaced, when the rest of the movie looks ok.
When I'm in the exporting window, I can see the "Source" and "Output" display.
"Source" looks fine and "Output" looks gerky.
I have tried to create a new progressive sequence, into which I imported my main AVCHD sequence (with some progressive footages in it). To no avail !... I had heard that this could work but it's not.
I looked in the "Output" window while trying all the possible codec formats (and field orders), to no avail.
UNTIL !! I checked the key : "Make Sequence settings match" that is on top of the exporting window.
The image in the "Output" window became clear. However, all the settings below the checked key were now locked.
Producing a file with this format (it seems it is a MPEG2 / upperfield first, the same format that is used for Preview files) can render a file that has all it's field and image quality aligned.
By unchecking the "Make sequence match" key, I was able to create my own settings of MPEG2 "upperfield" that still interpretes the movie correctly.
But it's not the MPEG H.264 progressive file that I want. I have to re-render it with a third party software to get a H.264(p) out of a MPEG2(i).
Is there something I should check or try to be able to export my movie in H.264 directly ?
Thank you!

FAQ: What information should I provide when asking a question on this forum?

Adobe Media Encoder de-interlace question

My video in the preview displays horribly interlaced, this is odd because the footage in the timeline displays correctly and clearly as well as my original footage. What seems to be the problem, I've tried rendering with de-interlace as well, it still shows fairly bad after being rendered.
All my original footage is 1280x720, 25fps.
My settings:
Format: H.264
Range: Entire Sequence
NTSC, 1280x720, 25[fps], Progressive
AAC, 160 [kbps], 48 kHz, Stereo
VBR, 2 Pass, Target 8.00, Max 8.00 [Mbps]
Video Codec: MainConcept H.264 Video
TV Standard: NTSC
Width: 1280 px
Height: 720 px
FPS: 25Field Order: None(progressive)
Pixel Aspect Ratio: Widescreen 16:9
Profile: Main
Level: 4
Bitrate Encoding: VBR, 2 Pass
Target/Maximum Bitrate: 8
Attached Files to show ya what I mean.
Rendering an uncompressed video yeilds the same results as Media Encoder.

On further inspection, Even still renders are interlaced like mad...
What's wrong?!
EDIT:
I fixed it!!! Apparently when speeding up or slowing down clips, it merges the frames together giving off that horrible look! So I turned off "frame blend" And it looks super awesome.

Where is the De-interlace in Adobe Media Encoder CS4?

How do you de-interlace video Using the Adobe Media Encoder in CS4? In CS3 there was a de-interlace check box in the video Output Tab but there is not one in CS4?
I am using 720x486 SD interlaced 29.97fps footage editing it and exporting the final product to flash flv.
Thank you!
Joe

Deinterlacing is now automatically applied if the source and the destination differ as far as their field order is concerned. In other words:
Interlaced source --> interlaced destination = no deinterlacing
Progressive source --> progressive destination = no deinterlacing
Interlaced source --> progressive destination = automatic deinterlacing
The Field Order option in the output setting determines whether deinterlacing is applied. Be sure to check the "Use Maximum Render Quality" option in the fly-out menu; it will take 4-5 times longer to render, but with better results.

MB Colorista renders interlaced in (AME) APP CS4

Hey everyone,
Everytime I apply colorista to a Clip in Adobe Premiere Pro CS4 and
render it out with Adobe Media Encoder (Youtube Widescreen HD, H.264)
the parts of the video are interlaced although my footage, sequence as
well as my render settings for render output are set to progessive.
I am working 1080p AVCHD footage
Any help would be much appreciated. Thanks in advance.
Best,
Alex

btw, same happens to me with MB Looks.
any idea?

Exported Interlaced MP4 Unplayable

I'm using the DV NTSC High Quality preset in Adobe Media Encoder CS4. The export appears to go fine, but I have trouble playing the video. The video looks very blocky and corrupt. I've tried playing it in Media Player Classic and Windows Media Player using the K-Lite Codec pack.
If I export with Progressive field order (no interlacing), the video plays fine.
I've exported a few mp4 files in MPEG Streamclip using interlacing and they seem to play fine, so I don't think it's an issue with not having the right codec for playback.
Is there something I should change in the export settings? Or is it just my computer not able to playback the files and if so, can I expect these MP4 files to play fine on other computers?

I was expecting that someone would bring that up, but I don't really see how that provides any solution.
I've tried the videos on a number of computers and so far have not found any that were able to play the MP4s. Basically, I want to be able to show the video on any other computer besides just the one I edit on - which is why I brought up the codecs (not sure how else you'd get the videos to play). Is there something else that should be installed or is it a setting I need to change in the export? That's what I'm trying to ask here.

Interlacing/ Scan Lines on iPhone 4S Screen + Yellow tint!

Hi everyone I bought my 64gb IPhone last week and noticed that I have faint interlacing lines on my screen. My serial starts with c39 and I am extremely dissatisfied. I had my iPhone 4 replaced last year and the replacement had this issue as well. I am so sick of Apples qc lately. You can really notice the issue when the display is showing a light grey bg and also the iMovie and Facebook icons. Please respond if you are experiencing this issue. I also have the yellow tinted screen. What is going on Apple?

I have the some issue with you.I found this interlacing issue with my last Iphone4 in july 2011,and then got 2 replaced iphones having the same problem.when I get my new iphone4S these days,I found the same issue,although its Not easy to observe,and MUCH BETTER then my last iphone4,but its defintely there,I can also notice it!
(The same issue on iphone4
https://discussions.apple.com/thread/3170657?start=0&tstart=0
http://thedice.net/iphone4/)
Please try to load the image via link below
https://discussions.apple.com/servlet/JiveServlet/showImage/2-15835585-24296/293 90947_7087297.jpg
and then save it into your camera roll. if you open it your iphone display will flash/flick very bad . (or when you push the "delete"button)you will notice it easier when you set that image as wallpaper and lock screen.
Let me know what happened,thanks.

Video switching from interlace to progressive on render

We have a video 29.97 1920x1080i which we are running dynamic linked through after effects, and when we render the video out in premiere it is switching from interlace to progressive.
When the video, in the dynamic link is left un-rendered, we can see the fields in the video, they only disappear after render.
We have tried rendering into several different codecs, ProRes 422 (HQ) being our preferred codec.
Has anyone else experienced something similar?

The issue is present, even on our external monitors. I just had a chat with customer support, it offered little help:
Ankit Chillar: Please elaborate the issue you are facing.
Jack Savage: We have interlace media, which we are dynamic linking through after effects, and back in premiere, before we render the clip we can see that it is still interlace, but as soon as we render it, no matter what the codec, it renders into progressive
Ankit Chillar: What is the version of Premiere Pro and after effects are you using?
Jack Savage: cc 2014.2
Ankit Chillar: Hi, Checked this information for you
Ankit Chillar: After Effects renders the video frame by frame so if you send a project from AE to Premiere then the sequence would be progressive by design and ca not be changed to interlaced
Jack Savage: why is it not rendering inside of premiere?
Jack Savage: not using premieres render engine
Ankit Chillar: because Premiere will treat the file as a uncompressed media file and render it as it is.
Jack Savage: I would like premiere to operate the same way the AE render engine does, giving me an option to choose the field order.
Ankit Chillar: I am afraid that is not how the application is designed, If you have suggestions for any improvement or feature you can register your suggestions on following link :0186602810
Ankit Chillar: https://www.adobe.com/cfusion/mmform/index.cfm?name=wishform
Jack Savage: we can force it into interlace by changing the setting in modify, is there a way to make that the default setting when using dynamic link projects?
info: Your chat transcript will be sent to [email protected] at the end of your chat.
Ankit Chillar: No sir, there is no workflow to do that, However a workaround might be possible for that you can post the query on our community forums. The support staff on forums as well as many of our active professional users might help you with the workflow.
Jack Savage: ok thanks
Ankit Chillar: Thank you for contacting Adobe. Good Bye.

How can we transform a video from progressive to interlaced with final cut?

How can we transform a video from progressive (720x1080 50p) to interlaced (PAL) with final cut pro???????
The video is taken with Sony EX3

Hi Nick
Sorry but your first link says +"The file you are trying to access is temporarily unavailable."+ ... but tell me, are you viewing these interlaced encodes yourself on an interlaced monitor (eg are you burning them to disc and viewing on a TV) as they are meant to be seen, or are you just playing them back from file on your (progressive) computer display?
By the way, I did manage to download your source file and encoded it here. Looks ok to me ... in a addition to the instruction above, I also changed the Field Dominance in the Encoder > Video Format tab to Top First (it defaulted to progressive due to the progressive source file).
Let me know if that helps
Andy

Interlacing

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