Infoseite // Progressive scan quality improvement



Frage von Masterblaster:


Hello everyone!

I have an acquaintance of one getting JVC GR-DV 2000 camcorder.
I've taken with and without progressive scan and a test sequence to test using Ulead MSP 7.0 over (DV Type 1, 720x576 25 frames / s).

"Testing view" I have changed the recorded sequence as Avi s.mehreren PCs with CRT and TFT, and as MPEG2 on a DVD.

Now I could see in the test sequence is no quality advantage for the interlaced sequence, except that it is not so natural for horizontal panning "smooth" look.

I know the difference in Progressice scan DVD playback and a similar Schärfengewinng was not clear at all.
Also referred to here, "film-look" was not clear.

Have I done something wrong, or why progressive scan brings nothing in my case?

Space


Antwort von Markus:

Hello,

What do you'd expect quality lead in progressive recording? That this does not automatically create a film look is quite clear (see details in the links below).

Links:
" Filmpraxis > Shooting > Filmlook
" 25p or 24p (progressive or interlaced film?)
"

Space


Antwort von Masterblaster:

Thank you for your post!
Hmm, so if I'm erhlich sees the progressive even get worse off.
How can this be?
The vertical Resolutionist but twice!

I said as I promised a sharp vertical rise and fewer steps at edges.

Info: I kennne the quality gain if s.einem LCD TFT or Projector DVD interlaced versus progressive compares.

Was meint her?

"Markus" wrote: Hello,

What do you'd expect quality lead in progressive recording? That this does not automatically create a film look is quite clear (see details in the links below).

Links:
" Filmpraxis > Shooting > Filmlook
" 25p or 24p (progressive or interlaced film?)
"

Space


Antwort von Forrest:

"Master Blaster" wrote: The vertical Resolutionist but twice!

Nope, the vertical frame Resolutionpro Shown is the same (576th line), only to be written not just 50 fields but 25 frames per second.

Quote: Info: I kennne the quality gain if s.einem LCD TFT or Projector DVD interlaced versus progressive compares.


The more likely reason is that flat screens have problems with Interlacedbildern. Cameras, however, give out no real frames, but are Interlacedbilder, which included two each at the same time.

Christian

Space


Antwort von Masterblaster:

Quote: Nope, the vertical frame Resolutionpro Shown is the same (576th line), only to be written not just 50 fields but 25 frames per second.

Hmm yes Ok makes sense, but DV Type 1 is not 25Bilder / s?
When encoding to MPEG2, I certainly 25Bilder / s selected as the input format.

Quote: The more likely reason is that flat screens have problems with Interlacedbildern. Cameras, however, give out no real frames, but are Interlacedbilder, which included two each at the same time.

I thought Movie DVD interlaced versus s.LCD LCD TV or projector.
Please also note that even as you say then my Progressive DV camcorder material to look better, not what it does and yes that is my problem!

Space


Antwort von Axel:

"Master Blaster" wrote: I thought Movie DVD interlaced versus s.LCD LCD TV or projector.
Please also note that even as you say then my Progressive DV camcorder material to look better, not what it does and yes that is my problem!


Hello.
I know as the aforementioned Appler Programs do not know but that there are stumbling blocks on the path of the recording, processing, encoding and authoring / burning program, depending on a number of.
Moving with the camera directly s.ein TFT or Pasmadisplay to be, provided appropriate links to demonstrate the above-mentioned quality difference very clearly.
Have a subsequent de-interlace criticized (like many other posts), however, brings neither on computer screens (which make the conversion anyway) or to conventional TVs (which in turn automatically interlace) an increase in quality, quite the contrary. DV does not need to be progressive, to shine on all platforms, and the film look is influenced to a maximum of 5% of this aspect. If you absolutely want to motion blur, can indeed make the shutter speed to 1 / 25. But why, if the motion resolution of the great advantage of video? Yes no reasonable person would be synonymous bad steadiness, lint or strip can copy his video.

Space


Antwort von Forrest:

"Master Blaster" wrote: Hmm yes Ok makes sense, but DV Type 1 is not 25Bilder / s? When encoding to MPEG2, I certainly 25Bilder / s selected as the input format.

PAL is always 25 frames / s, ie 50 fields / sec (25 frames are synonymous). Or am I now have misunderstood your question?

Quote: I thought Movie DVD interlaced versus s.LCD LCD TV or projector.
Please also note that even as you say then my Progressive DV camcorder material to look better, not what it does and yes that is my problem!


That's what I'm saying do not. Now I'm not sure but I believe in progressive DVD sent genuine frames, ie 25 frames per second and are presented as synonymous. This requires correct then a special interface (me if I'm wrong).

The camera takes in progressive scan at 25 frames per second. So far so good. In order to meet but now the conventional PAL standard, each frame is divided into two fields, and so synonymous spent. Thus then have LCDs and plasma problems.

Bye, Christian

Space


Antwort von Axel:

"Forrest" wrote: That's what I'm saying do not. Now I'm not sure but I believe in progressive DVD sent genuine frames, ie 25 frames per second and are presented as synonymous. This requires correct then a special interface (me if I'm wrong).
In order to meet but now the conventional PAL standard, each frame is divided into two fields, and so synonymous spent. Thus then have LCDs and plasma problems.

Bye, Christian


These are the points:

1. "special interface. Composite, no preference whether transmitted via the SCART or RCA, and S-VHS can not progressiv images. To do so, either stay "natively" on the Calculator or use YUV cable. There is still another interface with only one stroke, is the 'HD ready' plasma, the Standard, the name I do not know now.

2. Special players. DVD player, the one in the "progessive mode can switch", are still exotic. Only about 20% of the devices have this option. Conventional and older devices no progressive recordings transferred.

3. Each phase of operation within the editing programs can unwittingly the standard for PAL (WITH hinzurendern interlaced) again. You notice it because the pictures look worse than usual.

Interlaced is the standard for DV. Among the many steps up to the output, and particularly synonymous with the issue one likes to overlook the link in the chain, the progressive benefit from spoiling.

Can one say that DV is progressive and is poorly compatible s.Qualitätszuwachs for a minimum needs to take a lot of disadvantages in Purchase?

The situation is different in HD. Here MUs has lost nothing interlaced.

Space


Antwort von Forrest:

"Axel" wrote: Can one say that DV is progressive and is poorly compatible s.Qualitätszuwachs for a minimum needs to take a lot of disadvantages in Purchase?

Well, disadvantages? Interlaced isses in both cases, yes, is therefore of the erstmal no preference. Whether you are 50i or 25p is beautiful, is a matter of taste.

Quote: The situation is different in HD. Here MUs has lost nothing interlaced.

Well, there's synonymous with a progressive-and an interlace method (720p / 1080i, see synonymous

Space



Space


Antwort von Axel:

"Forrest" wrote:

Well, disadvantages? Interlaced isses in both cases, yes, is therefore of the erstmal no preference. Whether you are 50i or 25p is beautiful, is a matter of taste.


What I'm saying is that interlaced to progressive Calculator, LCD TV and flicker everywhere satisfactory results, however, only consistent adherence to these very harsh conditions. Interlaced interlaced looks better, and (of PCs, LCDs and plasma equivalent), a progressive yet practical as well. Progressive looks better than interlaced progressive at all, but mishandled it will mess. That's not a question of taste.

Quote: Well, there's synonymous with a progressive-and an interlace method (720p / 1080i, see synonymous

Space


Antwort von Markus:

Since this thread has rapidly developed but still the debate on principles. ;-) This fits the question of synonymous progressive or interlaced HDV in post Which HD Cam?

Space


Antwort von Masterblaster:

Progressive DVD is 50P, which of course looks better condition than 50i (HW key).

OK, I once again steer in the right direction.

Quote: Interlaced is the standard for DV. Among the many steps up to the output, and particularly synonymous with the issue one likes to overlook the link in the chain, the progressive benefit from spoiling.

OK, I guess that my 25P is for dubbing only 25i, so what looks to be in the Comparison 50i jerky and not so great.

Can it be?

Have I done something wrong when dubbing needs MediaStudio Pro nen patch?

Space


Antwort von Axel:

"Master Blaster" wrote: OK, I guess that my 25P is for dubbing only 25i, so what looks to be in the Comparison 50i jerky and not so great.

Can it be?

Have I done something wrong when dubbing needs MediaStudio Pro nen patch?


Hi,
As I said, I do not know the Programs. In Final Cut Pro (Mac) is the "audio / video preset" (perhaps somewhere else just to say "Preferences" or "Project presets"), the sticking point. If a Represents under "rows dominance" either "straight line" or "Odd lines", there is fidgeting and picket fences of the meanest. The correct box is simply "No", then that's Progressive. The Mpeg2 Encoder, unless it can be started from the editing program (in this case must simply with "current settings" are passed), must also have such a touchpad. Regard! The checkbox should not read: "Override Bolos! These measures are, of course, synonymous for AAE or other post-production Programs, as each import with standard PAL presets tinkering a line jump.
While authoring, and burning should be properly glattgehen everything.

But consider: Each of the following factors suppresses Progressive:
1. Wrong stream (see above).
2. Wrong Player.
3. Wrong interfaces.
4. Tube televisions.

Space





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