信息技术方面的翻译

The numerical data hideaway is the multimedia service one kind ofeffective encryption authorization technology. This article unifiesthe letter source and the channel coding proposes in one kind of videofrequency picture based on the letter source and the channel encodedvector data hideaway method. The encryption data first carries on thevector quantification letter source code, then through code processingwhen obtains the index, the use orthogonal vectors harassmenttransformation inserts to the main engine (carrier) in the signal. Thecarrier signal transformation ratio decomposes the vector group andthe use multi-dimensional standard carries on the channel coding it into insert the data the information content, has carried on to thenoise robustness and between the video information fidelity optimizedcompromise processing. The experimental encryption data is the lowfrequency air zone video signal, the carrier signal is the H.263compression main engine video frequency data.