Compression for mobile devices

Compression for mobile devices

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The requirements of video transmission systems to and from mobile devices differ considerably from those of satellite or terrestrial direct-to-home (DTH) transmissions. The main considerations are to keep the power consumption of mobile devices as low as possible and to make sure that frequency deviations due to the Doppler effect in moving receivers do not degrade the performance of the transmission system. In terms of video compression algorithms for mobile devices, there are also different requirements compared to traditional DTH applications. Not only should the compression algorithm provide high efficiency on relatively small, non-interlaced images, but it should also require little processing power and memory space for encoding as well as decoding.

Inspec keywords: video coding; encoding; Doppler effect; mobile handsets; data compression; radio receivers

Other keywords: video transmission system; encoding; power consumption; receiver; Doppler effect; mobile device; decoding; satellite direct-to-home transmission; concatenated codec; terrestrial direct-to-home transmission; video compression; satellite DTH transmission; terrestrial DTH transmission

Subjects: Image and video coding

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