C-Cube Message Board - Msg: 114441

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Technology Stocks : C-Cube

CUBE 36.04

-0.8%

Dec 31 3:59 PM EST

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To: Stoctrash who wrote (655)	6/4/1996 11:19:00 PM
From: James Wang	of 50808

Fred, It is a bogus claim to provide "virtually loseless to 350:1 compression". MPEG is an international stanard designed by engineers from more than 30 different companies and it only achieved 40:1 compression with very good quality. When compression ratio is higher than 200:1, there is no guarantee that the picture quality is acceptable. Wavelet transform is a similar technology as Discrete Cosine transform, which is the core of MPEG. Theretically, they are almost identical. There is no reason that one should be a lot better than the other. The key is that MPEG is internationally accepted and wavelet is not. MPEG is also much optimized for compression than wavelet. Claiming 350:1 compression ratio is nothing but a marketing trick, which is very irresponsible.

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