Frage von Stefan:
Hi,
I unfortunately nogroße idea
schonmal why I want to apologize for my stupid question
on google I found nothing concrete ...
I have a DV-Camera of Sony (; TRV-245e), which I Firewire s.den Calculator, followed (Windows XP). To edit and save later I suppose, "Magix Video Deluxe 2004/2005".
A few days ago was at our local fair, where I recorded several scenes of the ride "Polyp". Naturally, such a recording contains naturally very fast scenes or movements.
After I cut the file as mpeg (; for DVD) in multiple versions saved to "comb" effects through the interlacing be avoided. The best result I achieved here by the de-interlacing, play the comb effects were all gone.
Now I have but the problem with the play of the finished DVD (; burned with nero vision) on the Television (; standard 4:3 device) are some details pixelated, especially the (; smooth color) act gondolas "unclean". Does anyone have any idea what's wrong? I set the highest possible quality and synonymous already stored uncompressed in order to burn then, unfortunately, the same result.
If the fault is perhaps simply the fact that more than 25 fps are required to record the number of simultaneous movements correctly?
Thank you for your help -
Greetings,
Stefan
PS: A copy of the scenes I can send if required by the Yahoo messenger or by mail.
BPV-AT-gmx.de
Antwort von Markus:
Hi Stefan,
Television represents an interlaced video frames (; interlaced). If you can immerse the recordings before a de-interlacing, You change the picture depending on the quality of the conversion is not necessarily for the better.
Capture times change is a scene of your camcorder, it without further processing in order to MPEG2 and burn it to DVD (; rewritable DVD-RW discs are ideal for such tests). Whether playing s.PC now comb effects occur or not, the images should s.Television almost seem as if you were of the camera are leaked.
Greetings
Markus
www.behrendt.tv markus-IN-behrendt.tv
Antwort von - Udo -:
Regardless of that, I believe synonymous that you are JUST RIGHT for fast image with the interlacing are driving s.besten:
I suspect that simply the selected data rate of the MPEG2 is too low to encode the extreme image change without artifacts.
Antwort von Kiara Borini:
: After I cut the file as mpeg (; for DVD) in multiple versions
: Saved to "comb" effects through the interlacing be avoided.
...
:
Now I have the problem, however, play the finished DVD in the (; burned with
Nero vision) on the Television (; standard 4:3 device) are some details pixelated,
: In particular the (; smooth color) act gondolas "unclean".
...
:
: The problem is actually that I have a RW with all sorts of software
: I have created variations, actually s.besten the image if I do a
: De-interlacing in to it. This indeed devoid of any logic, but is actually
: SO.
I'll try a short answer is yes before breakfast ... (; Ask Possibly so..)
When encoding to MPEG color information of the single image and image areas of a sequence are combined to save space.
Deinterlacing I delete every other line image information and replace it with something that can be one of only doubled line information of the preceding line to reach based on a complicated average new information on mathematical functions. This information may, on the Nachbearzeilen, but are synonymous obtained from the neighboring images. Such elaborate methods provide most appealing frame. Accordingly, your results will vary during the subsequent MPEG encoding.
A line is merely doubled in the evaporation of the color information on "fertile ground" because it can evaporate because of the identical information very well and saves space. The disadvantage is that this result slightly by compression artifacts, aka "block" is visible. A mathematically averaged Erstazzeile does not make it to the encoding engine so easily and it makes so usually better results.
On the other hand, to nuzen To the existing range with the greatest possible quality, resulting from the de-interlacing resolution loss can have positive effects on the "apparent" results have since provided by the soft-focus effect is less apparent motion in the starting material and major parts of a sequence be interpreted as "static", which offers a compression advantage ...
Especially in flat areas of color unmoved by the noise of the Sensorss occurs readily apparent movement, which eats up lots of bandwidth in the MPEG encoded data stream and easily leads to loss of quality. A De-interlace can - minimize this noise by means of inferiority and thus save valuable bandwidth then the quality is visible again - depending on the method.
However that is always synonymous, the eye will always be disappointed. The image information is always used Bandwreite. The question is, what the eye in a particular situation as more important, more relevant information and exercises which data loss is more comfortable and less troublesome result delivers.
It really depends on the individual case can not s.and for each subject and each output unit general answer.
Addendum:
Whether comb effects are visible, whether deinterlacing is therefore a good sense depends very much of the later use from the video. On conventional Fernshern rather not s.Computer sure to high-end equipment and projectors, may be, even after their own firmware.
The need depends synonymous on the subject: The comb effects occur even with a location (;! Or camera or lighting) movement between the two fields of a frame (, so 2 * 1 / 25 second for PAL) Is the Camera on a tripod and the subject is moving at constant light (; Attention fluorescent) is not a deinterlacing is rarely necessary. (; The exception
Antwort von Markus:
Hi Stefan,
if there are still s.Television comb effects, then perhaps the field order is reversed. Can you set the capture or when the export?
Greetings
Markus
www.behrendt.tv markus-IN-behrendt.tv
Antwort von Stefan:
: Hi Stefan,
:
: A Television presents video images are interlaced (; interlaced). If you know the
: Recordings previously subject to a de-interlacing, you change the images, depending on
: Not necessarily for the better quality of conversion.
Hi Mark,
first thank you for your answer -
the problem is actually that I have a RW with all possible variations created in the software actually is s.besten the image if I do a de-interlacing in to it. This indeed devoid of any logic, but bear this out.
:
: Capture times a scene of your camcorder, they will walk without any further processing in
: To MPEG2 and burn it to DVD (; rewritable DVD-RW discs are ideal
: For such tests). Whether playing s.PC now comb effects occur or not,
: S.Television the recordings should look almost as if they were of direct
: The camera will be leaked.
Unfortunately, it is with me just the opposite: On the PC has the image of any comb effects only on the Television. As described above, unfortunately, synonymous in the file "version", in which I have not changed a bit interlacing ...
BPV-AT-gmx.de
