Horizontal objects (eg, stadium seats) in video produce flickering of those objects

JohnTS

Newbie Joined: Nov 06, 2011 17:28 Messages: 30 Offline

Solved by

Sep 02, 2015 08:19

I've had this problem with earlier versions of PD and have the same problem with PD13. Any objects with horizontal lines will cause a flickering of those objects. I've had this problem with things like fences and most anything with several horizontal like lines but it occurs most often with the rows and rows of stadium seats at a football stadium. When videoing a football game the stadium across the field becomes unstable and flickers. JohnT

PlaySound

Senior Contributor Joined: Dec 02, 2010 10:26 Messages: 2031 Offline

Sep 02, 2015 10:45

I agree with what you said, PD does this but is perceived to MPEG2 (SD)

What I do is minimize mara whenever possible to produce in HD or FullHD progressive first.
I made a clip to show this effect to Cyberlink, see if it's the same as you have.
http://directorzone.cyberlink.com/video/13812694?utm_source=profile-video-upload&utm_medium=video-detail&utm_campaign=4322169 AMD-FX 8350 / 8GB DDR3
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The Shadowman

Senior Contributor Location: UK Joined: Dec 15, 2014 13:06 Messages: 1831 Offline

Sep 02, 2015 11:58

I don't know if you are filming English football (pal 50hz) or American football (ntsc 60hz), but check your camera and your viewing device are set to the same. By the same Critea, make sure filming in pal, your camera is set to 50 frames per second and ntsc 60 frames per second. Both of the above can cause flickering if the settings are not correct.

When producing, ensure the camera frame rate and the production profile are the same, eg 25 fps.

Please tell us what your camera resolution is set to and what frame rate you are using. Also, what settings are you using to produce the clips. Panny TM10, GH2, GH4,

optodata

Senior Contributor Location: California, USA Joined: Sep 16, 2011 16:04 Messages: 8630 Offline

Sep 02, 2015 12:44

JohnTS

Newbie Joined: Nov 06, 2011 17:28 Messages: 30 Offline

Sep 02, 2015 12:48

Thanks for the response. The camera is a Panasonic HDC-TM55. Recording is made using best AVCHD setting, 30 frames/sec and PD13 is set at 30fps. The problem I usually have is american football.. shooting from one side and sometimes catching the bleachers on the other side of the field. It's really horrible. JohnT

optodata

Senior Contributor Location: California, USA Joined: Sep 16, 2011 16:04 Messages: 8630 Offline

Sep 02, 2015 13:16

I just looked at the camera *specs* and even the *owner's manual* and it appears that your camera can only record in 60i. That format can also be interpreted as 30p, and if you've set the project settings to 30fps and you're producing to a 30p format, I think you're doing everything correctly.

You camera model came out 5 years ago and all the consumer HD cameras back then were interlaced (50i or 60i). You can now get very affordable HD 60p cameras which would completely solve the artifacts you're seeing, but if you could attach a small sample of one of your clips perhaps someone can find a setting that reduces the flickering of vertical objects when you're panning.

The file size limit is about 30MB, so if you don't have a small enough clip, please upload it to a cloud drive (OneDrive, DropBox) and post the link.

YouTube/optodata

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