![]() | The contents of the Video compression page were merged into Data compression and it now redirects there. For the contribution history and old versions of the merged article please see its history. |
The page seems redundant with (and inferior to) the video codec page. Cat5nap 05:42, 7 Apr 2005 (UTC)
The article says that lossless video compression is not used. Why?
I thought it worth mentioning for the sake of clarity that A) DVDs are not technically lossless compression, so I changed the wordings for that sentence and also added that B) not all videos on hard drives are lower quality than DVDs and HDVDs. I'm sure this wasn't what was intended to be said, but it read like this to me. I also added some mention of uncompressed video codecs, since they're very common in post-production work, although not too much since this seems to be intended to be largely an intro/non-technical kind of page.
-Evan (06/04/07)
Anyone who is tech savvy already knows what video compression is, so this article should be written for a non-technical audience. (Or at least keep the detailed stuff to the end.) I've pulled a lot of buzzwords to reflect this, and replaced them with simple descriptions. Algr 08:47, 18 June 2006 (UTC)
"Without data compression, either the picture would look 30 times worse"
This sentence hardly fits any scientific criterion. Since there is no mathematical critetrion of 'how good the picture looks like', it makes no sence to use the number 30 here.
There's a merge tag suggesting a merge with the B pictures article. One page points the discussion of that merge suggestion here, while another directs the same discussion to take place on Talk:B pictures. The actual discussion has been taking place there, not here. Summarizing - Basically, no one (so far) is supporting the suggestion to merge the articles. - Mulligatawny 20:52, 9 October 2006 (UTC)
Aside from the players/codecs/filters, are there any means of generating a non-compressed file from a compressed one? (Similar to the decompression of ordinary archive files to get to the original documents inside.) -- Jokes Free4Me 10:31, 22 March 2007 (UTC)
Is a lossless compression equal to raw video? It seems to me that "lossless" compression is a term that contradicts itself. My understanding is that any form of compression is throwing out information. Is raw video itself really raw?- or does it undergo some form of compression when brought into the computer (via firewire for example). Also I have a question about the new HD cameras that compress files into MPG format on a REV PRO discs or flash cards. When the files are "uncompressed" for editing how is the information "reconstructed"? -Nick```` —Preceding unsigned comment added by 207.29.128.130 ( talk) 15:21, 3 October 2007 (UTC)
All mentioned compression techniques use frames, but there's also frameless compression: FrameFree-- 87.162.47.66 ( talk) 17:39, 22 July 2008 (UTC)
From Ten Steps to a Successful IP Surveillance Installation: Step 2 (section: Other considerations):
Just thought it should be documented somewhere. — Dispenser 23:31, 6 September 2008 (UTC)
![]() | The contents of the Video compression page were merged into Data compression and it now redirects there. For the contribution history and old versions of the merged article please see its history. |
The page seems redundant with (and inferior to) the video codec page. Cat5nap 05:42, 7 Apr 2005 (UTC)
The article says that lossless video compression is not used. Why?
I thought it worth mentioning for the sake of clarity that A) DVDs are not technically lossless compression, so I changed the wordings for that sentence and also added that B) not all videos on hard drives are lower quality than DVDs and HDVDs. I'm sure this wasn't what was intended to be said, but it read like this to me. I also added some mention of uncompressed video codecs, since they're very common in post-production work, although not too much since this seems to be intended to be largely an intro/non-technical kind of page.
-Evan (06/04/07)
Anyone who is tech savvy already knows what video compression is, so this article should be written for a non-technical audience. (Or at least keep the detailed stuff to the end.) I've pulled a lot of buzzwords to reflect this, and replaced them with simple descriptions. Algr 08:47, 18 June 2006 (UTC)
"Without data compression, either the picture would look 30 times worse"
This sentence hardly fits any scientific criterion. Since there is no mathematical critetrion of 'how good the picture looks like', it makes no sence to use the number 30 here.
There's a merge tag suggesting a merge with the B pictures article. One page points the discussion of that merge suggestion here, while another directs the same discussion to take place on Talk:B pictures. The actual discussion has been taking place there, not here. Summarizing - Basically, no one (so far) is supporting the suggestion to merge the articles. - Mulligatawny 20:52, 9 October 2006 (UTC)
Aside from the players/codecs/filters, are there any means of generating a non-compressed file from a compressed one? (Similar to the decompression of ordinary archive files to get to the original documents inside.) -- Jokes Free4Me 10:31, 22 March 2007 (UTC)
Is a lossless compression equal to raw video? It seems to me that "lossless" compression is a term that contradicts itself. My understanding is that any form of compression is throwing out information. Is raw video itself really raw?- or does it undergo some form of compression when brought into the computer (via firewire for example). Also I have a question about the new HD cameras that compress files into MPG format on a REV PRO discs or flash cards. When the files are "uncompressed" for editing how is the information "reconstructed"? -Nick```` —Preceding unsigned comment added by 207.29.128.130 ( talk) 15:21, 3 October 2007 (UTC)
All mentioned compression techniques use frames, but there's also frameless compression: FrameFree-- 87.162.47.66 ( talk) 17:39, 22 July 2008 (UTC)
From Ten Steps to a Successful IP Surveillance Installation: Step 2 (section: Other considerations):
Just thought it should be documented somewhere. — Dispenser 23:31, 6 September 2008 (UTC)