mjpeg2000 vs H264

[pieter1976]

I found a comparison of mjpeg2000 with H264 which is rather interesting. It seems that Mjpeg2000 works better for 1920x1080 video material.

Here is the link (http://iphome.hhi.de/marpe/download/perf_spie03.pdf)

[pieter1976]

I also have been working on a postprocessing filter specialy for Jpeg2000 files. It has a positive effect on the PSNR values.
Is anybody interrested in filters like this?

[thegeby]

The comparison seems to be purely by quality. Neither speed, nor computing resources, seems to have been a factor. It does not seem surprising that a compression algorithm designed for individual pictures perform better, quality-wise. By photographic standards, 1920x1080 would after all be considered rather crummy....

Anyhting that pushes the quality envelope should be welcomed, however

[Tommy Carrot]

I'm not sure if you noticed that it was a keyframe-only comparison, so it doesn't tell anything about the video coding performances, only that jpeg2k has higher PSNR rate than the h.264 keyframes.

[drmpeg]

Here's a newer paper that compares JPEG2000 with H.264 FRExt on 720p
images. Seems the 8x8 transform helps quite a bit.

http://ftp3.itu.ch/av-arch/jvt-site/2005_01_HongKong/JVT-N010d1.zip

Ron

[pieter1976]

Here is a postprocessing filter that improves the PSNR levels.
link (http://www.iis.sinica.edu.tw/JISE/2003/200307_08.pdf)

Does a similar opensource projects exist?

[pest]

it's easy to code a i-frame only wavelet
coder which kicks jpeg2000s ass...
you can add a sbr-like algorithm to the
dequantization to further improve the texture quality
the problem is a good motion compensation
and current state of the art techniques are just
a way too complex..but reference coders beat h264 psnr-wise
just wait... ;)

pest

edit: spelling