Wavelet Technology

[Service Engineer]

Would any of you care to give me some feedback on Wavelet Technology and the Wavestore range of DVR, NVR and Hybrid recorders created by www.wavestore.com .

I would especially appreciate any comments on the quality of their products and also opinions of the technical support department.

Thanks.

[Service Engineer]

Does no one here use the Wavestore range.

I'd really appreciate some input guy's.

How do you rate there DVR's.?

How are Tech Support.?

How good is the Wavelet compression method compared to others.?

Anyone need a demo or trial.?

Thanks David for putting the question to the forum.

For those who have not considered Wavestore, we can arrange for them to have a demo (at their office or ours) and the opportunity to trial a unit.

Chris Williams

www.wavestore.com

+44 (0) 208 756 5480

+44 (0) 7710 620 820

[secboy]

Does no one here use the Wavestore range.

I'd really appreciate some input guy's.

How do you rate there DVR's.?

How are Tech Support.?

How good is the Wavelet compression method compared to others.?

Anyone need a demo or trial.?

Dave, don'nt know the company you are looking for info on but if its any help DALLMEIER uses wavelet compression technology for their dvr's which are considered high middle grade kit have used several and quality of stored image is good.

Paul.

[Matt the Teckie]

As a general rule, I find wavelet technology's particulaly fitting for CCTV applications mainly due to fact that it's not using fractal or predictive coding. It blurs edges and detail the more compression you apply. Just for information, JPEG2000 is the proper implimentation of Wavelet technology.

The best analogy I heard was that it works in a similar way to our brains.

If you show some-one a poster for 1 second and take it away, then ask that person what they saw. Chances are that they'd remember the most prominent parts of the image but certainly not all. This applying maximum compression.

Now show the same person the poster for 20 seconds and ask the same question. This is the kind of result you'd get if you applied minimum wavelet compression.

Eitherway, since the image blurs rather artifacts, the overall image is often more pleasing to the eye (as this is the way poorly defined images are processed by the brain)

Hope this helps

[UltraHighResolution]

Lee Tracey is an occasional contributor to this forum and is a veritable expert on the subject. I don't know how to email him from here but I'm sure one of you does.

Robin

[morph]

if you know his member name either use the search or click his profile in the member list, you will then have the option to PM or email him.

[Guest Lee Tracey]

Matt the Techie is close to the answer. I am off to spend a couple of days down south with a Police Force to cover mobile video surveillance. On my return I will put up a full math article on compression which highlights the power of the wavelet algorithm. Wavelet is by far the most superior video compression algorithm existing in the world today. I am currently being unfaithful to wavelet and have a new mistress called H.264.

The reason is finance. H.264 is a massive number crunching algorithm and can produce good images as small as 5K, but it does have some counter productive side issues as well. Wavelet, on the other hand produces superb images of about 30K. When you consider a 135 camera Police Custody Suite project that has to record at real-time in 4CIF for 90 days over the 135 cameras you would get something like 192 terabytes in wavelet. With H.264 it would be 74 terabytes. With a terabyte costing the Police about