ALIASING HELP - reduce moire

So, the aliasing on the BMCC is considerably bad. Striped shirts, brick walls, etc can be quite overwhelming when your director wonders what the hell is happening to their image. I am aware of avoiding things that cause this effect, but does anyone have suggestions for reducing or removing aliasing in post or in camera?

I've heard of aliasing filters, but I've never made use of them. Anything helps!

Thanks!

IM actually putting together a tut on this but there is somethings you can do to reduce moire or false color in post. It really depends on how sever the moire is, if its just the red banding or a certain color banding over the texture you are safe. When its in the luma or details you will have a harder time getting rid of in in post.

If is just in the chroma you can fix it by separating your RGB channels into YCbCr (Gamma, Chroma Red, Chroma Blue) or in something AE you would use YUV. Then you can blur the Chroma channels and leave all the nice sharp details intact. You should also only sharpen the luma channel as well but thats another topic.

In Nuke it can be quite easy and I know there are pugins for final cut that do this as well. When it comes to AE I found it a pain in the butt although it can be done. Again Ive got my files all done for this tut im just trying to record a video or write it up at the moment. If I remember correctly in AE you have to use a channel switcher or combiner on a duplicate layer to sharpen the luma in YUV and then combine it back.

Sorry if this is confusing but if you look up doing this in YCbCr or YUV in your package hopefully you will find out what you need. As I said if its in the details like a chain link fence, coarse jeans or anything you could get into holding the frame and matchmoving the object in comp to get rid of it. Using filters or shooting a bit soft in camera could save you time and money too.

So, the aliasing on the BMCC is considerably bad. Striped shirts, brick walls, etc can be quite overwhelming when your director wonders what the hell is happening to their image. I am aware of avoiding things that cause this effect, but does anyone have suggestions for reducing or removing aliasing in post or in camera?

I've heard of aliasing filters, but I've never made use of them. Anything helps!

Thanks!

One of the methods I found to be successfull is to use neat video with a high frequency cb cr filtration with a radius of 5 frames and play around with a motion sensitivity. That's in after effects.

Somewhere in this forum I read that Resolve 10 (that we can hopefully use as BMCC user) contains easier access to luma channel blur noise reduction. So should work in one click then.
I like Neat Video but somehow I find it too expensive.

Somewhere in this forum I read that Resolve 10 (that we can hopefully use as BMCC user) contains easier access to luma channel blur noise reduction. So should work in one click then.
I like Neat Video but somehow I find it too expensive.

I really do not understand how is it too expensive. (99$)
I mean, it's the only thing that really works in the sense that I can actually run a bunch of clips overnight through it without owning a render farm. As long as you have a good GPU.
They really have no competitors. I also own and sometimes use re:vision effects de:noise ($149) in a very special cases (low quality source footage, like HDV, shadows in such footage) where neat video might fail on its own, as a first pass. But de:noise suffers often from the optical flow motion artifacts. It is slower but still usefull.
Then there is dark energy antimatter, it's fine but slower then neat video and too finiky to setup ($149-$399)
And of course red giant denoising plug in: very slow. Used to clamp super whites, though they fixed that. Slow. Very very slow. ($99)
So neat video is really not that expensive. One of the cheapest on the market and works great in most cases.

I really do not understand how is it too expensive. (99$)
I mean, it's the only thing that really works in the sense that I can actually run a bunch of clips overnight through it without owning a render farm. As long as you have a good GPU.

It is great that one can do batch processing with it without much assistence. That is a huge plus.
Thanks also for pointing out which competitors there are. If you want more resolution then 1280x720 pixels (HDV 720p) then you need the 199$ version.

I wonder where it is best used in the process.
I mean do you put the final cut film in ProRes through it, or the individual shots. But then you would have to give up rawpretty early in the process. And do the final grade without raw.

I really do not understand how is it too expensive. (99$)
I mean, it's the only thing that really works in the sense that I can actually run a bunch of clips overnight through it without owning a render farm. As long as you have a good GPU.

It is great that one can do batch processing with it without much assistence. That is a huge plus.
Thanks also for pointing out which competitors there are. If you want more resolution then 1280x720 pixels (HDV 720p) then you need the 199$ version.

I wonder where it is best used in the process.
I mean do you put the final cut film in ProRes through it, or the individual shots. But then you would have to give up rawpretty early in the process. And do the final grade without raw.

After effects pro version is $99, so is the final cut version.
It is a nuke and OFX versions that are $199.
A side note. There are no built in batch capabilities in neat video. I am using after effects mechanics to batch. My point was that its actually fast enough.
You're right about raw. Haven't gotten my camera yet, for now most of the footage I get is not raw. And when resolve 10 ships I will actually get the 199 OFX version of the plugin. Although I head that the denoiser in resolve 10 is superior to what we have now in 9. So mayby won't have to make that purchase after all.
Denoising is he first step in my process now. Allows for clean qualifications in resolve.

Hi all here's
an adjunct to my original post RE Moire

Great Solution is also using a softer lens or the lens at the largest f value F1.4 will greater reduce colour moire, for instance the New sigma 35mm is regarded as one of the sharpest lens out there at F5.6-f8.6.
which exhibits quite bad moire on some surfaces....... take it down to f1.4 and that moire is greatly reduced to the point where its not noticeable, then sharpening in post a little generally won't bring the moire back as bad.

Moire issues occurs at different focal wavelengths & the Best effective way to resolve moire issues
on any camera afflicted is to either Simply move in Or away or zoom in or out from the subject until the moire disappears or is minimized ,also if avail purchase an olpf for the camera. .....hope this helps
Cheers
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