Infoseite // HV30 - motion block forming a kind



Frage von darklord77:


Hello,

have recently launched a Hv30.
I've noticed in the video in a kind of block Beweungn education is to be seen. On the screen you see is not. Only after I had captured. (Sony Vegas)
Why?

Space


Antwort von Axel:

A screenshot would not be bad. An easily adjustable belt tracking may cause block formation, typically in the first few seconds. Other causes of users here are perhaps spontaneously recognized, if you show them how it is displayed.

Space


Antwort von darklord77:

I enclose a screenshot times.
In the red highlighted area is clearly visible.

Space


Antwort von domain:

This is not a band but typical management problem for the long-gop process in mpeg2.
One is already on hundreds of postings drag problem is that frames be judged and not the current video, but of course it would be nice if all synonymous frames had no compression artifacts and would be razor sharp.
But that is not currently läufts halt in the consumer sector and mpeg2 mitigated not synonymous with H.264 AVC

Space


Antwort von darklord77:

This means that is normal?
And I can not do?

Space


Antwort von domain:

Is normal and may even turn out significantly worse.
However, it bothers you when playing the real synonymous videos so much?

Space


Antwort von Axel:

For me looks like like interlace artifacts in motion blur (probably still crooked scaled, because small preview window), not as block formation. They are after the deinterlacer (through an HD-Television) is no longer visible. To determine whether's it is, open the clip gecaptureten with the VLC player and go about> Video> deinterlacer (eg "discard", which halved the size of the image, but is guaranteed to clean). If the "blocks" are gone, post the result.

Space


Antwort von WoWu:

For me, the problem according to the 25F, which is half the frame rate in the Camera. For 50i and 25i will be the half and then in the camera frames to be calculated. Arises from two fields but of course not full full, as of a progressive sampled sensor would come, because all the interlace artifacts are still preserved in the Picture.
For the comparison of the format will be fixed very quickly, that it just is not indifferent whether two fields with 1 / 50 sec in the Skip or progressive with a full 1 / 25 sec, or, as here, two to a half Vollbild merged.

@ domain
What an MPEG artefact should that be?

Space


Antwort von Axel:

Now I throw the glove in this matter, and particularly the feet of the specialist Wolfgang. If the one (incidentally at the HV30 Progressive sampled with CMOS and packaged only in half, so called the Canon synonymous not "F") 25p mistake, I am ashamed stop the door. I think the bet, it's "i".

Space



Space


Antwort von darklord77:

Ok. Now I do not anymore.

It is as I watch the videos for the Web allesammt prepare. The are not played on the Television.
And the artifacts are extremely disturbing.

I need the videos for the Web in the dimensions: 480 x 360 pixels.
How do I use the Create Project in Vegas so annoying artifacts such mimimiert be?

Space


Antwort von Alan Smithee:

Is this perhaps in HDV and recorded as DV (SD) have been captured?
If yes, then probably the interlace artifacts when downscaling in the Camera arise.

Space


Antwort von darklord77:

It is recorded in HDV.
What do you mean with "captured in DV?

I have yet to Vegas before capturing specify whether HDV or DV. In that respect it's been captured in HDV.
The only thing I can imagine this is the project settings are wrong in Vegas. But what?

Space


Antwort von Alan Smithee:

With "captured in DV" I thought the select options from the menu in the camera, when the HDV output via FireWire to a DV stream (ie SD resolution) down.

On my HV20, I find the words in the menu under "Wiederg/Aus-Setup2" -> "IR Output".
If there is "HDV / DV", then gives the camera in HDV HDV recordings synonymous, if only because "DV" stands, an HDV recording runterkonvertiert.

I think in the HV30 wirds similar or equal.

In Vegas, I'm going to unfortunately not help.

Space


Antwort von WoWu:

@ Axel

.. Sit back relax and read again carefully.
I did not say it was a 25p errors, but it seems like the "F" problem.
Exactly this effect is in the older Canon shots plentiful in moving sequence can be observed.
Otherwise, a rename of a scanning so synonymous basically no guarantee that the procedure actually used.
So you relax.

Space


Antwort von Axel:

It can be synonymous with interlace material Halbbildreihenfolge swap. Then to say that this is typical for the I-problem is s.der point.

"WoWu" wrote: among older Canon recordings ... it will probably have been something like: Not the right presets in NLEs, although technically HDV1080 always "i", it must be in the case of f / p but otherwise treated.

Since the end of 2006 were the two I know of NLEs, APP2 (with Canon plug) and Final Cut Pro 5.1 ff, the material process, synonymous to the "F-Mode" from the A1, and without that synonymous only the shadow of an interlace-line ever occurred. This means carefree Scale (best for web), but completely synonymous unproblematic as the standard edition PAL DVD. Less trouble with zappelnden graphics, even (actually straight) on an old native "i" box.

Well, I'm for "p" partisan, but when I fixed the false statements here ever again see, do I stop my Sermon synonymous ever again.

For those interested here
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Antwort von r.p.television:

This is simply and easily because of the interlacing. Just the frame as it is open in Photoshop and deinterlacer. If the picture is clean would be the proof. Or even simpler: the clip deinterlace before exporting. Then this Kammeffekt disappear.
Or no fields in the export / progressive / etc Halbbilddominanz not set.

Space


Antwort von domain:

I think on closer inspection actually now synonymous. From block formation can be no question.
Hence my question above synonymous, whether in the current video is synonymous to see. And that is just not on s.and frame analysis with faulty deinterlaces

Space


Antwort von darklord77:

Thanks, I'll give it a try.

Space



Space


Antwort von r.p.television:

"domain" wrote:
Hence my question above synonymous, whether in the current video is synonymous to see. And that is just not on s.and frame analysis with faulty deinterlaces


That is basically correct. But: The thread starter was s.damit Web videos to want to create. In the wrong export settings so that progressive frames are created, where each quasi-fields without interpolation over. That would not be nice. Important when you export the settings so progressive / no fields.

Space


Antwort von darklord77:

Hello,

So it was really s.den things you've mentioned (interlacing, etc.)
Do it now reasonable target.
Thanks for your helpful hints.

Space



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