Successful HVX200 Pulldown Removal Test on 1080/24fps

H

holyzoo

Well-known member
Since I now have some raw footage, I went through 18+ options for pulldown removal in Cinema Tools, and found that this --

http://www.holyzoo.com/content/hvx200/video/HVX200_Remove_Pulldown.jpg

-- appears to remove the pulldown on the 1080i clip, yielding a 24fps .mov file.

I tested the file in a Final Cut Pro sequence with these settings:

http://www.holyzoo.com/content/hvx200/video/FCP_Settings_1080p_24fps.jpg

And it's working.

Here's the end result, encoded to H.264 (scaled down for manageable file size for web):

http://www.holyzoo.com/content/hvx200/video/1080_60iP2_Source_to_24fps.mov

:)
 
Awesome! Good work..........Thanks

holyzoo said:
Since I now have some raw footage, I went through 18+ options for pulldown removal in Cinema Tools, and found that this --

http://www.holyzoo.com/content/hvx200/video/HVX200_Remove_Pulldown.jpg

-- appears to remove the pulldown on the 1080i clip, yielding a 24fps .mov file.

I tested the file in a Final Cut Pro sequence with these settings:

http://www.holyzoo.com/content/hvx200/video/FCP_Settings_1080p_24fps.jpg

And it's working.

Here's the end result, encoded to H.264 (scaled down for manageable file size for web):

http://www.holyzoo.com/content/hvx200/video/1080_60iP2_Source_to_24fps.mov

:)
Click to expand...
 
You rock, holyzoo!

First: I'm not a techie guy!

Second: May anyone explain to me what's this...remove? And why?

Third: Can you holyzoo do the same for all Michael Pappas' footage, equal (encoded to H.264) as scaled down for manageable file size for web? Because most of all we are @PC side...with a simple laptop.

Even why after so compression artifacts news, I'm curious to see ALL that material. Re-encoded if I don't have other option...

Even regarding this sample, I don't follow such puzzling!? :laugh:

It's just a new frontier for the screen arts...that we must carry on...or I can also say, out...carry out... :cheesy:
 
Emanuel said:
Second: May anyone explain to me what's this...remove? And why?
Click to expand...

I'm sure this has been explained many times regarding removing pulldown on the DVX100 with its 24pa mode (progressive advanced pulldown). It's essentially the same deal, but with the DVCPRO HD codec.

Also before I go to town on this, Final Cut Pro should have an update that sees pulldown in 1080i off the HVX200, easily allowing you to remove it, just as easily as removing it on DVX100 or XL2 24p DV footage.

This is a very loose simplified explanation. Also I'm using 24fps/30fps terminology instead of 23.98/29.97 terminology. When recording 24fps to 1080i, it's actually recording at 30fps, with duplicate information in order to adhere to a standard. This is done, because there is no official 1080/24fps standard for broadcast systems, so they went with the infamous 1080i60 standard. More accurately, that's what had been decided to support in the DVCPRO HD codec years ago, from everything I've read. If you need more info, there's much more to it that you can read on the web. Anyway, there are a few reasons why you'd want to remove pulldown.

1) You want to transfer to film. I've never done this, so I can't say much more on the process.

2) You want to work with true 24fps because you will be encoding for web distribution or electronic distribution to be played back on a computer, so there's no point in A) wasting bits on repeat information, B) keeping repeat information since true 24fps looks better. See below about "pulldown repeat blend".

3) You want to work with true 24fps because you'll be scaling down to 720p/24fps or 480p/24fps for DVD.

4) You want to work with true 24fps because you're a purist and don't want to do it the hack way by editing on frames that include "pulldown repeat blends" (I just made that term up) Here's an example of "the blend" - http://www.holyzoo.com/content/hvx200/images/Pulldown_Repeat_Blend.jpg Here's an example of a pure frame with no pulldown - http://www.holyzoo.com/content/hvx200/images/Pure24.jpg

Note: If you shoot in the Native 720p/24fps mode on the HVX200, you don't have to bother with any of this. :) Nice.

Emanuel said:
Third: Can you holyzoo do the same for all Michael Pappas' footage, equal (encoded to H.264) as scaled down for manageable file size for web? Because most of all we are @PC side...with a simple laptop.
Click to expand...

I'll see if anyone beats me to that mission. If not, I'll do it.
 
Regarding the meaning of pulldown from DVX equal @HVX, there wasn't the problem despite, as european, these questions are not so important. But you explained very well the imperative point of this need.

Thanks a lot for your offer. As I said, holyzoo, you rock! [as well, your website :thumbsup:]

I'll be waiting!
 
Right -- for you European users, there is no such thing as pulldown so you don't even have to think about it.

(... er... at least as far as 1080 goes... or 720 "native"... but in 720 "over 50" mode, when shooting variable frame rates, you'll have pulldown to contend with)
 
Barry and Holyzoo:

Isn't 1080p : 1920 x 1080

and 720p : 1280 x 720

Holyzoo: you've got 1280 x 1080 in your settings...

... am I missing something...

Thanks
 
stabwound said:
Barry and Holyzoo:

Isn't 1080p : 1920 x 1080

and 720p : 1280 x 720

Holyzoo: you've got 1280 x 1080 in your settings...

... am I missing something...

Thanks
Click to expand...

DVCPROHD stores 1080i/P in 1280x1080 resolution. HDV doesn't store at full rez either by the way, 1440x1080 I believe.
 
Echoing what philnerd stated, yes, the image is stored as 1280 x 1080 for 1080i, and 960x720 for 720p. But when it's displayed it's 1920x1080 or 1280x720.

And yes, HDV doesn't record at full dimensions either. 1440x1080. Same with HDCAM even.
 
Yeah, for HDCAM only SR records in the full 1920x1080 resolution. So if you want all 1920 horizontal pixels at your disposal, you need to go with a F950U CineAlta or one of the uncompressed HD systems like the T/GV Viper.
 
Awww.

Sounds like interpolation going on.

I am assuming this: During editing, we use 1280x1080, and on display it somehow changes to 1920x1080?

AAieeee!

My head hurts.
 
Barry_Green said:
Right -- for you European users, there is no such thing as pulldown so you don't even have to think about it.
Click to expand...

Well, depends, Cinema Tools offer two pulldowns for us: 24@25 and 24&1.
 
Damn, you website is blocked to the military :
Category: "Entertainment/Recreation/Hobbies;Nudity;Profanity;Gruesome Content"
 
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