martingilly 0 Posted October 3, 2005 Offers the best picture quality. MPEG2, MPEG4 or JPEG2000? Share this post Link to post Share on other sites
Jasper 0 Posted October 3, 2005 MPEG-2 produces the best quality between it and MPEG-4. MPEG-2 files can also be easily converted to DVD complaint files and burned to DVD for playing on standard DVD home players. MPEG-2 uses less CPU to compress files than MPEG-4. Hardware compression is preferable than using the CPU if you have that option. So the power of the computer is a very strong factor if you are not using hardware compression. MPEG-4 uses much more compression, uses much less hard drive space, I have seen 4.7GB DVD's (MPEG-2) compressed to a 700MB while retaining a beautiful picture. If your computer is powerful enough to handle real time MPEG-4 compression that's what I would use because you save so much space and you can reverse compress those files back to DVD format easily as well if you want to burn them to DVD. Also MPEG-4 version 10 seems to be even more effective at maintaining a higher quality image and compressing files even smaller. H.264 is the name of the advanced video codec that is used to accomplish this task. MPEG-4 files are also very easy to stream across the internet for remote viewing The bit rate is so much lower than MPEG-2. MPEG-2 is not practical unless you have enormous bandwidth on each side. Even then I would still go with MPEG-4 because it is technically superior in just about every way. The other file format you mentioned I am not familiar with. Maybe somebody else in the forum can discuss the pros and cons of that format. Share this post Link to post Share on other sites
rory 0 Posted October 4, 2005 Wavelet is also a very high quality compression, but I think it takes up even more space than MPEG2 or MJPEG. Search is your friend http://www.cctvforum.com/viewtopic.php?t=1975 http://www.cctvforum.com/viewtopic.php?p=16383 http://www.cctvforum.com/viewtopic.php?p=21903&highlight=jpeg2000#21903 So to answer your question, JPEG2000. Share this post Link to post Share on other sites
martingilly 0 Posted October 4, 2005 thanks guys, I'll have a JPEG2000 here tomorrow to test. http://pluscctv.com/dvr.htm seems way to cheap to be worth it's salt, but ya never know. Share this post Link to post Share on other sites
rory 0 Posted October 4, 2005 It is cheap Now, what they do with that compression is a whole different thing .. mind you even the cheapest DVR on the market with MPEG2 is very high quality, just lacks a ton of features and other things. That network software it uses is one of the worst Ive ever used by the way, but hey, its cheap Share this post Link to post Share on other sites
