Visualization, selection, and analysis of traffic flows

R.J. Scheepens, C. Hurter, H.M.M. van de Wetering, J.J. van Wijk

Onderzoeksoutput: Bijdrage aan tijdschriftTijdschriftartikelAcademicpeer review

39 Citaties (Scopus)

Uittreksel

Visualization of the trajectories of moving objects leads to dense and cluttered images, which hinders exploration and understanding. It also hinders adding additional visual information, such as direction, and makes it difficult to interactively extract traffic flows, i.e., subsets of trajectories. In this paper we present our approach to visualize traffic flows and provide interaction tools to support their exploration. We show an overview of the traffic using a density map. The directions of traffic flows are visualized using a particle system on top of the density map. The user can extract traffic flows using a novel selection widget that allows for the intuitive selection of an area, and filtering on a range of directions and any additional attributes. Using simple, visual set expressions, the user can construct more complicated selections. The dynamic behaviors of selected flows may then be shown in annotation windows in which they can be interactively explored and compared. We validate our approach through use cases where we explore and analyze the temporal behavior of aircraft and vessel trajectories, e.g., landing and takeoff sequences, or the evolution of flight route density. The aircraft use cases have been developed and validated in collaboration with domain experts. Keywords: Moving Object Visualization, traffic flows, interaction
TaalEngels
Pagina's379-388
TijdschriftIEEE Transactions on Visualization and Computer Graphics
Volume22
Nummer van het tijdschrift1
DOI's
StatusGepubliceerd - 2016

Vingerafdruk

Visualization
Trajectories
Aircraft
Flow interactions
Takeoff
Landing

Citeer dit

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title = "Visualization, selection, and analysis of traffic flows",
abstract = "Visualization of the trajectories of moving objects leads to dense and cluttered images, which hinders exploration and understanding. It also hinders adding additional visual information, such as direction, and makes it difficult to interactively extract traffic flows, i.e., subsets of trajectories. In this paper we present our approach to visualize traffic flows and provide interaction tools to support their exploration. We show an overview of the traffic using a density map. The directions of traffic flows are visualized using a particle system on top of the density map. The user can extract traffic flows using a novel selection widget that allows for the intuitive selection of an area, and filtering on a range of directions and any additional attributes. Using simple, visual set expressions, the user can construct more complicated selections. The dynamic behaviors of selected flows may then be shown in annotation windows in which they can be interactively explored and compared. We validate our approach through use cases where we explore and analyze the temporal behavior of aircraft and vessel trajectories, e.g., landing and takeoff sequences, or the evolution of flight route density. The aircraft use cases have been developed and validated in collaboration with domain experts. Keywords: Moving Object Visualization, traffic flows, interaction",
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Visualization, selection, and analysis of traffic flows. / Scheepens, R.J.; Hurter, C.; van de Wetering, H.M.M.; van Wijk, J.J.

In: IEEE Transactions on Visualization and Computer Graphics, Vol. 22, Nr. 1, 2016, blz. 379-388.

Onderzoeksoutput: Bijdrage aan tijdschriftTijdschriftartikelAcademicpeer review

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