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Use lossless data compression in embedded systems

Posted: 08 Jul 2009 ?? ?Print Version ?Bookmark and Share

Keywords:Data compression? algorithms? lossless?

Data compression is all around us. We see it in a variety of products, such as, high definition televisions, DVD and MP3 players, cell phones, digital cameras, fax machines, automobiles, etc. When you look at all the embedded products out there you will quickly see that data compression is an integral part of their operation.

There are a significant number of data compression techniques available to meet the specific needs of most applications. But whatever the solution may be, all compression algorithms fall into two main categories, lossy and lossless data compression.

Lossy data compression is used in applications where an acceptable amount of data loss is allowed in the compression algorithm. We see lossy data compression predominantly in the areas of imagery, video, and audio applications.

When it comes to lossless data compression, there are two options you can choose, Statistical or Dictionary-Based compression methods. The method chosen is based primarily upon the type of data being compressed.

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