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DVD and BluRay ghosting during movment

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Geoff Chandler
DVD and BluRay ghosting during movment
on May 31, 2017 at 1:30:18 am

I have a 90 min dance/stage event under various stage lighting which looks fine on my Vegas Pro 10 timeline but when rendered to both BluRay and DVD, any running-like dancer movement has a weird blur/ghosting. I hoping against hope it's something I can fix with different render settings and it's not a camera setting error. I'll try to get settings and screen shots but I thought I'd throw this rings a bell for someone.

http://www.chandlervideo.com


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Geoff Chandler
Re: DVD and BluRay ghosting during movment
on May 31, 2017 at 1:46:33 pm

Could it be something to do with re-sampling? Maybe try turning that off? Or motion blur setting on the Vegas timeline?

http://www.chandlervideo.com


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Jeff Pulera
Re: DVD and BluRay ghosting during movment
on May 31, 2017 at 2:10:56 pm

Hi Geoff,

This type of thing can happen when editing and/or export settings do not match the clip. What is the source video, like 1080p60, 1080i, other?

Did the editing setup in Vegas match? What export settings were used? Screen shots will be most helpful in this regard

Thanks

Jeff Pulera
Safe Harbor Computers


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Geoff Chandler
Re: DVD and BluRay ghosting during movment
on May 31, 2017 at 6:44:52 pm

Thanks Jeff. I think you're on to something because I recorded the show two ways:

1- To SD card in the Sony EX1
2 - To a Panasonic switcher then to a Ronin recorder

The footage directly from the camera looks fine in output to both DVD and BluRay. The footage from the Ronin is the problem. I'll try and dig into the settings more but the properties from the two sources are:

Sony EX1 SD Card - 1920 x 1080 x 12
Ronin - 1920 x 1080 x 32

http://www.chandlervideo.com


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Geoff Chandler
Re: DVD and BluRay ghosting during movment
on May 31, 2017 at 7:54:46 pm

Could the incompatibility be between my camera and recorder? Here are the settings in the menus.

Panasonic AW-HS50 Switcher
Format: 1080/59.94i

Sony EX Menu
HD/SD Mode: HD
Video format: HQ 1920/60i

Atmos Ronin
1080i 59.94 Pro Res LT

http://www.chandlervideo.com


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Jeff Pulera
Re: DVD and BluRay ghosting during movment
on May 31, 2017 at 8:19:24 pm

What you've shown so far is that all sources/recordings are 1080i. If you edited as 1080i, and exported as H.264 Blu-ray 1080i, then there should be no ghosting. But I don't know what was used for editing and exporting. When you say there is ghosting, where are you seeing that? Do not preview DVD and Blu-ray discs on computer because results can vary depending on software (and playback settings) used. Computers do not display interlaced video properly and maybe that is what you are seeing, interlacing issues on progressive computer display?

To test discs you burn, always play them in a DVD or Blu-ray player out to a TV via HDMI, do not use computer to proof them.

Thanks

Jeff Pulera
Safe Harbor Computers


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Jeff Pulera
Re: DVD and BluRay ghosting during movment
on May 31, 2017 at 9:03:07 pm

Download and install the free MediaInfo app - https://mediaarea.net/en/MediaInfo

Then in Windows Explorer, you can right-click any video clip and from the drop down menu, select MediaInfo and it will tell you all about the video clip. This is the first thing I would do. The Ronin is only going to record whatever it is given - it should auto-configure to match the incoming video - so maybe the switcher was not set right and did something to the signal format? Many links in this chain of yours 😉

Thanks

Jeff Pulera
Safe Harbor Computers


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Geoff Chandler
Re: DVD and BluRay ghosting during movment
on May 31, 2017 at 9:24:17 pm

So, this is a file from the Panasonic Switcher/Ronin recorder.


http://www.chandlervideo.com


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Geoff Chandler
Re: DVD and BluRay ghosting during movment
on May 31, 2017 at 9:40:37 pm

And this is file is directly out of my Sony EX cam. So, the two files look the same - 1920x1080 (16:9) at 29.970 FPS. I assume this means I made a rendering error?


http://www.chandlervideo.com


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Geoff Chandler
Re: DVD and BluRay ghosting during movment
on May 31, 2017 at 8:16:26 pm

In Vegas Pro, when I select File>New and Match Project settings, I click on my Ronin file and get this:


This are the Properties I get from the SD card right out of the Sony EX



http://www.chandlervideo.com


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Christopher Smith
Re: DVD and BluRay ghosting during movment
on Aug 2, 2017 at 10:23:14 pm

In my experience, working with interlaced footage produces ghosting when the frame rate is resampled. The new frame rate takes advantage of the 60 fields and grabs fields instead of whole frames in order to "best" sample the video. The partial frames (i.e. the fields) produce ghosted edges on fast motion.

But you are staying at 29.97 fps throughout your pipeline, so I'm not sure of the cause. Nevertheless, there must be somewhere in the chain which is not honoring the 29.97 interlaced setting.

Christopher Smith

CBN International


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