Faster algorithms for the shortest path problem
Journal of the ACM (JACM)
A Model of Saliency-Based Visual Attention for Rapid Scene Analysis
IEEE Transactions on Pattern Analysis and Machine Intelligence
Algorithm 360: shortest-path forest with topological ordering [H]
Communications of the ACM
Saliency, Scale and Image Description
International Journal of Computer Vision
Summed-area tables for texture mapping
SIGGRAPH '84 Proceedings of the 11th annual conference on Computer graphics and interactive techniques
Looking into video frames on small displays
MULTIMEDIA '03 Proceedings of the eleventh ACM international conference on Multimedia
Automatic thumbnail cropping and its effectiveness
Proceedings of the 16th annual ACM symposium on User interface software and technology
Robust Real-Time Face Detection
International Journal of Computer Vision
Learning user interest for image browsing on small-form-factor devices
Proceedings of the SIGCHI Conference on Human Factors in Computing Systems
A Principled Approach to Detecting Surprising Events in Video
CVPR '05 Proceedings of the 2005 IEEE Computer Society Conference on Computer Vision and Pattern Recognition (CVPR'05) - Volume 1 - Volume 01
CVPR '06 Proceedings of the 2006 IEEE Computer Society Conference on Computer Vision and Pattern Recognition - Volume 2
Video retargeting: automating pan and scan
MULTIMEDIA '06 Proceedings of the 14th annual ACM international conference on Multimedia
ACM Transactions on Multimedia Computing, Communications, and Applications (TOMCCAP)
Optimized image resizing using seam carving and scaling
ACM SIGGRAPH Asia 2009 papers
FSCAV: fast seam carving for size adaptation of videos
MM '09 Proceedings of the 17th ACM international conference on Multimedia
Spatial-temporal video browsing for mobile environment based on visual attention analysis
ICME'09 Proceedings of the 2009 IEEE international conference on Multimedia and Expo
Supporting zoomable video streams with dynamic region-of-interest cropping
MMSys '10 Proceedings of the first annual ACM SIGMM conference on Multimedia systems
Video retargeting with multi-scale trajectory optimization
Proceedings of the international conference on Multimedia information retrieval
Vlogging: A survey of videoblogging technology on the web
ACM Computing Surveys (CSUR)
Crowdsourced automatic zoom and scroll for video retargeting
Proceedings of the international conference on Multimedia
Towards characterizing users' interaction with zoomable video
Proceedings of the 2010 ACM workshop on Social, adaptive and personalized multimedia interaction and access
Algorithms for video retargeting
Multimedia Tools and Applications
Supporting region-of-interest cropping through constrained compression
ACM Transactions on Multimedia Computing, Communications, and Applications (TOMCCAP)
Combining content-based analysis and crowdsourcing to improve user interaction with zoomable video
MM '11 Proceedings of the 19th ACM international conference on Multimedia
Scale and Object Aware Image Thumbnailing
International Journal of Computer Vision
Neurocomputing
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We consider the problem of cropping surveillance videos. This process chooses a trajectory that a small sub-window can take through the video, selecting the most important parts of the video for display on a smaller monitor. We model the information content of the video simply, by whether the image changes at each pixel. Then we show that we can find the globally optimal trajectory for a cropping window by using a shortest path algorithm. In practice, we can speed up this process without affecting the results, by stitching together trajectories computed over short intervals. This also reduces system latency. We then show that we can use a second shortest path formulation to find good cuts from one trajectory to another, improving coverage of interesting events in the video. We describe additional techniques to improve the quality and efficiency of the algorithm, and show results on surveillance videos.