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Panasonic AG-HPX 370 - 3D-Effekt inklusive

Panasonic AG-HPX 370 - 3D Effect Included



Frage von deti:
Mai 2010

That's kind of an impressive if one absolutely synonymous adverse effect in the new HPX370: http://www.dvxuser.com/V6/showthread.php?t=210156

Deti



Antwort von Jott:

Motion prediction, codec problem. May feel free to join smear equivalent and skew, which regards the mess of photographs.



Antwort von deti:

"Jott" wrote:
Motion prediction, codec problem. May feel free to join smear equivalent and skew, which regards the mess of photographs.

There is no motion in AVC-Intra Prediction:)

Deti








Antwort von Jott:

Sure? Due to the intra-frame coding? Oops, you're quite right. But what is it? must Rumrechnerei s.Picture with a false result so be it - provided the linked video is no joke-fake bummer that one can never rule out.



Antwort von iMac27_edmedia:

who would not have his camera to move, but seems to be synonymous with the 301 of the case.



Antwort von deti:

I suspect it is because here was an area is tagged as noise. This is of ever-smaller sensors and more processing power in the cameras. In fact, the effect was described with the 300 synonymous already, but he was not as clear. The 370 seems to filter more aggressive, synonymous when it is alleged that a better sensor block was built.
The resulting 3D effect is quite remarkable ;-)

Deti



Antwort von iMac27_edmedia:

On the basis of the effect seems to me the 370s before fainter - or
because the picture is brighter, more rushes synonymous, then attack the internal computer processes it and then to the effect comes about.

But in the current prospectus, despite all discovered that the HPX370/371
F11 comes to offering 1080/50i acquisition, with 60i F10. That would be identical
with the values of SonyEX1/3/320.

Whether one can always trust the manufacturer's instructions, which was once an open question.
Since Panasonic claims a picture quality as 1 / 2 "or more sensors to be topped.



Antwort von Jott:

Then the noise would have to work even partially - basically masking via the supposedly rushing image areas, and because of the processing time for these parts of the image's noise reduction will be delayed one to two frames s.ihren place back? What nonsense would that.

I tend to be honest, to be a fake - until someone has a logical explanation for it.



Antwort von r.p.television:

This is definitely not a fake.
First, there was already a video of the 301er with a dragonfly s.einem blade of grass. Since the dragonfly hovered although completely static, sitting on the grass suggests and her.
I then asked a friend who once worked frequently with the 301er sure he noticed. He has confirmed that and meant that in some shots was really annoying synonymous.
He has described to me a scene where the camera was completely static on a tripod and a golfer he has filmed, standing next to a flag. The style flags (though has completely still standing down and forth, probably triggered by the movements of the golfer next to it.
I think so but that it is a codec problem, although one that would actually exclude straight at AVCIntra 100 more. The scene was lit bright as day. Either the 301 has such a strong noise synonymous with daylight that the noise filter're doing some nonsense or AVC100 but works with any of The Art of Motion Prediction.



Antwort von Jott:

If wowu-reads, I would be interested in his opinion. Although one can argue with him great - for such things he should be the right analysts.

I was really looking forward to a coherent technical explanation. Always provided the footage creator tells no nonsense when he says he looks forward to the camera screen. Otherwise the way to Vimeo is of course long ...



Antwort von tommyb:

Noise reduction. My tip.

Intra codec will not - which not like that. The noise reduction but works across multiple frames - that is a perfectly normal side effect (especially when comes to small movements).

That is probably synonymous to the trick, why the 1 / 3 "sensors of the 370 will be as bright as the half" of the EX-family ...



Antwort von Jott:

"TommyB" wrote:
this is a perfectly normal side effect (especially when comes to small movements).


Do not believe me. Virtually all CMOS cameras work intensively with Noise Reduction, and at least I have never seen such a thing. The filmed situation is not exactly exotic.








Antwort von iMac27_edmedia:

Habs me just once viewed in large or has someone help him in as clouds, in other details like wallpaper, it does not look it.
But if necessary, can be synonymous s.der Scan Type of Chips and s.der Flash Volume compensation, perhaps synonymous plays along here, is not a flash, but still likely to be activated as well as CAC.

All of these computational processes (which are generally more in CMOS anyway) is having possibly synonymous on the Picture. I tend to reduce noise as synonymous, possibly Coring may affect the setting of the Effect.

Yes WoWu sure what there could help.

If one wants to not have it, not herumwackeln Camera Tripod and again!

At the same coverage with just such best poster and then test yourself and post at Vimeo!



Antwort von WoWu:

, I think things over until I had it reproduced. It is, according to the posters so pretty unclear what exactly he has set. This one has little synonymous conclusion on possible components involved, if no preference SW or HW.
rp says yes, it is synonymous with the 300 ... views see.

My first tip is, however, as synonymous of Jott, in the direction of prediction.
In H.264 there is a prediction within a frame.
The pixel values of a macro-block transformation or to predict from the surrounding pixels and only the difference is coded. This has the advantage that, AC coefficient prediction is unnecessary. And as I would on the 16x16 (or) Chroma prediction tap, which is carried out in four directions. Here interesting: horizontal and vertical. Too bad that he has wobbled in one direction only. Would have been interesting to see what happens vertically.
But that would lead to so synonymous light "streaks".
It makes no sense when he says he is synonymous in the viewfinder??
So I try to make time itself and then we gaze times. Come to test your system but only s.Montag.
I am glad that is so noticed an effect on us yet and would not be any angry, if it remained there, but let's see.



Antwort von pilskopf:

That's right ne expensive camera, holla the forest fairy would be so bad if it were always this way.



Antwort von deti:

've Tried with the degree of HPX301E replicate - I do not manage: http://www.vimeo.com/11750390 (conversion takes a little longer).

Deti



Antwort von WoWu:

@ Pilskopf

we will have in the future having trouble with a couple of things, all of which are due to the fact that it necessarily has to be 1080 and possible motion nor the (slow progressive).
The efforts of the Fraunhofer Institute to reduce the amount of data is next to this goal. Because the format is in its quality upwards quite open, but not the storage capability. It will be very soon either inadequate and / or too slow, or prohibitively expensive.
It now has a choice: we clamp down on all of the current quality and excellent discussion about who it goes and who does not, or we face the challenges of driving on the Picture next synonymous and synonymous to keep the consumers affordable.
It has sent the Introduction of DV and given the crazy Effects of the Introduction of MPEG-not to speak.
There are still, in each codec the typical side effects. This is normal. In MPEG, it took 15 years to the biggest things were eradicated, in DV they have never been removed, because MPEG came.
But it all remains so even leave the level at which the image quality (and storage media), he would make his final decision. I for one think the really exciting development and sit apart like that. And I think a few others here in the forum think something like that.

@ Deti
I'm curious. Then it would be plenty of time, sometimes synonymous to dig in the amendments to the 370th
Unfortunately, there is no adequate information on how the modified RS compensation was made. At the point of the video there is of course no edges as a reference. Maybe yes synonymous only the reference sector too small?



Antwort von iMac27_edmedia:

@ Pilskopf:
Really expensive I think the camera does not, so synonymous is the big Panasonic
and otherwise synonymous HDCAM SR - this is expensive.



Antwort von tommyb:

"Jott" wrote:
"TommyB" wrote:
this is a perfectly normal side effect (especially when comes to small movements).


Do not believe me. Virtually all CMOS cameras work intensively with Noise Reduction, and at least I have never seen such a thing. The filmed situation is not exactly exotic.

This is less then the CMOS itself but s.der internal signal processing.

With Entrauschungsfiltern to "time" basis, which can also readjust very well. If the pixel motion analyzed over several frames, this is but the threshold is set too high, just that happened fortunately remains the displaced position of the image parts as visible until the memory is cleared for the current Picture.

As far as the software version of which, as easily replicate in Avisynth in connection with eg "temporalsoften (3,16,24,15,2)"

For example, this solution is the noise detection on only three frames (News, News-1, Current + 1) - distributed as it is not so bad. But you increase the value to like 7, is getting worse.

So I would indeed tap on it (if synonymous WoWu is not yet so far;) that it is more a problem with the software-side noise - especially something like is quite simple to realize synonymous and synonymous works very well if it was not to doll is driven or too much noise exists.



In the appendix you'll find it a test file that I have just brought one of Dr. House DVD. been here is the noise with the extreme Settings "temporalsoften (3,16,24,15,2) will fight. Pay attention to the forehead ...



Antwort von iMac27_edmedia:

interesting how the wrinkles on the stars down and to side motion and other artifacts. -> Signal Processing

So probably with a different setup the camera look better synonymous,
or tampered with setup could see it synonymous s.der HPX301,
when the noise filter to work at full speed and try to smooth.
Why not runterstellen equal sharpness.



Antwort von r.p.television:

Apparently, this effect occurs in a very spontaneous and it is difficult to recreate it. Certain backgrounds, patterns and lighting conditions can be static elements out and her swim.
I would become synonymous to the noise filter tap synonymous when it looks like a bad Motion Prediction for MPEG2 / 4 This effect where eye hinterherschweben always in the faces of the head movements ".









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