On top of that, the order is usually important but it is difficult to be absolutely sure that the sequence coded is the correct order for all cases.

This example relies on mapping infrequently used characters such as a left angled quote (?, often coded as «) and assumes that such characters do not appear in the resulting sequence otherwise.

Method and system for coding sequence of segmented images, corresponding coded signal and storage medium, and method and system for decoding such a coded signal.