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Moire upscaling issue on output to 1920
Hello,
I’m new to FCP and to this forum, but wanted to say how fantastic it is to have such a high quality resource available for beginners.
My question concerns outputting HDV PAL footage to a DVD. When outputting as a quicktime movie, there is significant moire flaring, as the video subject wears a vertical striped black and white shirt. This kind of ‘pulses’ with any slight body movement, which is very distracting. My question is how is it best to minimize this?
The footage was captured using a Sony HVR-Z1 at 1440×1080, which as I understand is a full vertical but compressed horizontal version of full HD. I’m guessing the horizontal upscaling to 1920 width is causing this flaring, as the footage in the FCP canvas looks fine.
Is there a way to dampen or filter this moire flaring, with output to 1920, or is there a way to output the footage at 1440 resolution and avoid the upscaling issue (and I’m presuming the flaring)?
Other production details I’ve used are below:
Export from FCP: File, Export as Quicktime (current settings, non self contained movie)
Compressor: HD DVD H.264 60 minutes, QT format, 10.3 MbpsName: H.264 10.3Mbps
Description: For HD DVD. Fits up to 60 minutes of video with Dolby Digital audio at 192 Kbps on a DVD-5
File Extension: mov
Estimated file size: 4.94 GB/hour of source
DVD type: HD DVD
Partial sync: 0.5 seconds
Frame sync rate: 2 seconds
Field dominance: Progressive
Video Encoder
Format: QT
Width and Height: Automatic
Pixel aspect ratio: Default
Crop: None
Padding: None
Frame rate: (100% of source)
Frame Controls: Automatically selected: Off
Codec Type: H.264
Multi-pass: On, frame reorder: On
Pixel depth: 32
Spatial quality: 50
Min. Spatial quality: 50
Key frame interval: 48
Temporal quality: 50
Min. temporal quality: 50
Average data rate: 10.25 (Mbps)
Maximum data rate: 23 (Mbps)
Audio Encoder
16-bit Integer (Big Endian), Stereo (L R), 48.000 kHzthank you,
Doug
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3 Replies
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I think you’re stuck with this effect. It’s why professionals never wear clothes with tight patterns on-camera. You can try applying blur to decrease the moire. You can use Color, create a user shape, apply blur to it, and track it, so the blur only affects the shirt and not the rest of the frame. Maybe someone else has a trick that would help. I don’t think the thin raster of HDV contributes much to the problem. It’s the pattern on the shirt.
John
MacPro 8-core 2.8GHz 8 GB RAM OS 10.5.5 QT7.5.5 Kona 3 Dual Cinema 23 ATI Radeon HD 3870, 24″ TV-Logic Monitor, ATTO ExpressSAS R380 RAID Adapter, PDE enclosure with 8-drive 6TB RAID 5
FCS 2 (FCP 6.0.5, Comp 3.0.5, DVDSP 4.2.1, Color 1.0.3)Pro Tools HD w SYNC IO, Yamaha DM1000, Millennia Media HV-3C, Neumann U87, Schoeps Mk41 mics, Genelec Monitors, PrimaLT ISDN
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Ok, thanks for the advice John – I’ll give that a go.
cheers
Doug -
I had a serious Moire problem with my Canon HFS10 in full HD 30P mode on my jeans and guitar strings. I added a gaussian blur filter in Final Cut Express 4.0 and, bingo, the jeans moire fully disappeared and the moire on my guitar strings was mitigated substantially! I will add Neat Video filter to sharpen the video and should be in good shape.
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