Research On Timeline-based Visualization For Movement Data

With the development of technology, the gradually progressing tracking techniquesmake the collection of large-scale, high-precision and long-period individual movementdata become possible. Those movement data not only can reflect the real spatial andtemporal movement track of move entities, but also contain a lot of valuable informationabout the move entities, when and where the move happens, and the whole movementprocess. If those movement data can be visualized and analyzed by adequate spatial-temporal analysis method, more information can be extracted to utilize in the domain ofurban transportation planning, human behavior exploration and nature resourcereservation.Visualization, as a technique to deliver data and information supported by graphicalmethod, plays an important role in the data understanding and analysis. A rational andeffective visualization method can reflects the move entities, the behavior of moveentities, and the spatial and temporal characteristic of move entities more precisely,which may help the researchers to extract valuable information hidden behind thosemovement data effectively and deeply. This research raises a visualization method whichcombines the schematic map and timeline to present movement data based on thecharacteristic and feature of movement data and the combination of requirement analysisof client movement data. Meanwhile, this research also applies the concept of cartogramto carry out the deformation process of schematic map and timeline separately. Andfinally the visualization methods which are able to extract more hidden data can beachieved such as “basic presentation”,“from time to geography presentation”, and “fromgeography to time presentation”. It is shown through the case study that those methodsnot only can reflect the individual movement track, but also the stop information duringthe movement process. If those three methods are combined together, it is possible tobuild the relative real and complete reappearance of the movement process.