Trip Synopsis: 60km in 60sec

H. Huang, D. Lischinski, Z. Hao, M. Gong, M. Christie, D. Cohen-Or

Research output: Contribution to journalArticlepeer-review

14 Scopus citations


Computerized route planning tools are widely used today by travelers all around the globe, while 3D terrain and urban models are becoming increasingly elaborate and abundant. This makes it feasible to generate a virtual 3D flyby along a planned route. Such a flyby may be useful, either as a preview of the trip, or as an after-the-fact visual summary. However, a naively generated preview is likely to contain many boring portions, while skipping too quickly over areas worthy of attention. In this paper, we introduce 3D trip synopsis: a continuous visual summary of a trip that attempts to maximize the total amount of visual interest seen by the camera. The main challenge is to generate a synopsis of a prescribed short duration, while ensuring a visually smooth camera motion. Using an application-specific visual interest metric, we measure the visual interest at a set of viewpoints along an initial camera path, and maximize the amount of visual interest seen in the synopsis by varying the speed along the route. A new camera path is then computed using optimization to simultaneously satisfy requirements, such as smoothness, focus and distance to the route. The process is repeated until convergence. The main technical contribution of this work is a new camera control method, which iteratively adjusts the camera trajectory and determines all of the camera trajectory parameters, including the camera position, altitude, heading, and tilt. Our results demonstrate the effectiveness of our trip synopses, compared to a number of alternatives.

Original languageAmerican English
Pages (from-to)107-116
Number of pages10
JournalComputer Graphics Forum
Issue number7
StatePublished - 1 Oct 2016

Bibliographical note

Publisher Copyright:
© 2016 The Author(s) Computer Graphics Forum © 2016 The Eurographics Association and John Wiley & Sons Ltd. Published by John Wiley & Sons Ltd.


  • Categories and Subject Descriptors (according to ACM CCS)
  • I.3.3 [Computer Graphics]: Picture/Image Generation—Viewing algorithms


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