SUSAN—A New Approach to Low Level Image Processing
International Journal of Computer Vision
Looking into video frames on small displays
MULTIMEDIA '03 Proceedings of the eleventh ACM international conference on Multimedia
Distinctive Image Features from Scale-Invariant Keypoints
International Journal of Computer Vision
An Experimental Comparison of Min-Cut/Max-Flow Algorithms for Energy Minimization in Vision
IEEE Transactions on Pattern Analysis and Machine Intelligence
Video retargeting: automating pan and scan
MULTIMEDIA '06 Proceedings of the 14th annual ACM international conference on Multimedia
Automatic scaling and cropping of videos for devices with limited screen resolution
MULTIMEDIA '06 Proceedings of the 14th annual ACM international conference on Multimedia
Seam carving for content-aware image resizing
ACM SIGGRAPH 2007 papers
Proceedings of the 15th international conference on Multimedia
Improved seam carving for video retargeting
ACM SIGGRAPH 2008 papers
Seam carving for media retargeting
Communications of the ACM - Rural engineering development
Visual mapping by a robot rover
IJCAI'79 Proceedings of the 6th international joint conference on Artificial intelligence - Volume 1
Semi-automatic registration of videos for improved watermark detection
MMSys '10 Proceedings of the first annual ACM SIGMM conference on Multimedia systems
Algorithms for video retargeting
Multimedia Tools and Applications
Grid-based retargeting with transformation consistency smoothing
MMM'11 Proceedings of the 17th international conference on Advances in multimedia modeling - Volume Part II
MUSIZ: a generic framework for music resizing with stretching and cropping
MM '11 Proceedings of the 19th ACM international conference on Multimedia
SeamCrop: changing the size and aspect ratio of videos
Proceedings of the 4th Workshop on Mobile Video
Semantic Mastering: content adaptation in the creative drama production workflow
Multimedia Tools and Applications
Convex object surface mapping for wide field of view video representation
Proceedings of the 3rd ACM international workshop on Interactive multimedia on mobile & portable devices
GPU video retargeting with parallelized SeamCrop
Proceedings of the 5th ACM Multimedia Systems Conference
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The presentation of multimedia data and especially of high resolution videos on small mobile devices is still a great challenge today. Both cropping of borders and scaling of frames may result in the removal of essential content of videos or lost details due to the reduced size of the visual content. Another major problem emerges if the aspect ratio of the original video and the display of the mobile device differ. User evaluations indicate that changing the aspect ratio may reduce the visual quality of videos significantly. In this paper, we present the new FSCAV algorithm (Fast Seam Carving for Size Adaptation of Videos) to adapt the size of videos to the limited display resolution and different aspect ratios of handheld mobile devices. The general idea of the seam carving algorithm for still images is to remove seams in images so that the essential content is preserved. We extended this technique which works very well for images to create videos without jitter or visible artifacts. A major feature of our FSCAV algorithm is the low computational complexity which enables an efficient adaptation of videos to small screens. Nevertheless, severe distortions are clearly visible in some shots of the adapted videos. We present a new heuristic to identify shots with such a low visual quality. If the quality drops below a threshold, a different adaptation technique is used for this shot (e.g., scaling or cropping). User evaluations confirm a very high visual quality of our approach.