A spatio-temporal trajectory compression method based on trajectory dictionary
A compression method, a technology of space-time trajectory, applied in the fields of electrical digital data processing, instrumentation, calculation, etc., can solve the problems of a large amount of storage space, inability to compress, and time-consuming
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[0061] The following will clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only some of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.
[0062] Such as figure 1 As shown, embodiments of the present invention include:
[0063] A spatio-temporal trajectory compression method based on a trajectory dictionary, comprising two parts: the establishment of a trajectory dictionary set and the trajectory compression based on the trajectory dictionary set, specifically including the following specific steps:
[0064] 1) Establishment of trajectory dictionary set
[0065] 1.1) The trajectory dictionary set based on the frequent trajectory pattern is established...
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