Results 211 to 220 of about 51,257 (257)
Convolutional Sparse Coding for Trajectory Reconstruction [PDF]
IEEE Transactions on Pattern Analysis and Machine Intelligence, 2015 Trajectory basis Non-Rigid Structure from Motion (NRSfM) refers to the process of reconstructing the 3D trajectory of each point of a non-rigid object from just their 2D projected trajectories. Reconstruction relies on two factors: (i) the condition of the composed camera & trajectory basis matrix, and (ii) whether the trajectory basis has enough ...
Yingying Zhu, Simon Lucey
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Trajectory Reconstruction for Travel Time Estimation
Journal of Intelligent Transportation Systems: Technology, Planning, and Operations, 2008In this article, we propose a Trajectory Reconstruction Model as an improvement to existing speed-based travel time estimation models. The proposed model utilizes point-based speed data collected by existing Intelligent Transportation Systems (ITS). Using the smoothing scheme proposed, it is possible to construct a speed surface as a function of space ...
Daiheng Ni
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Precision trajectory reconstruction
IEEE PLANS '88.,Position Location and Navigation Symposium, Record. 'Navigation into the 21st Century'., 2003A precision trajectory reconstruction technique based on photoscoring has been developed to evaluate the airborne accuracy performance of guidance and navigation systems. The sensors include a reference inertial navigation system (INS) and a motion picture camera.
W. Tang, N. Johnson
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Player trajectory reconstruction for tactical analysis
Multimedia Tools and Applications, 2018To increase the performance of sport team, the tactical analysis of team from game video is essential. Trajectories of the players are the most useful cues in a sport video for tactical analysis. In this paper, we propose a technique to reconstruct the trajectories of players from broadcast basketball videos. We first propose a mosaic based approach to
Liang-Hua Chen +2 more
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RECONSTRUCTION OF CURVED PARTICLE STREAK TRAJECTORIES
Journal of Flow Visualization and Image Processing, 2008We present a method for reconstructing curved particle trajectories from particle streak velocimetry. The reflection properties of a particle are modeled as a point light source. The mapping of the particle on the image is spread by the point spread function of the camera lens.
Rosenstiel, Marcus, Grigat, Rolf-Rainer
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Stereo Reconstruction of Droplet Flight Trajectories
IEEE Transactions on Pattern Analysis and Machine Intelligence, 2015We developed a new method for extracting 3D flight trajectories of droplets using high-speed stereo capture. We noticed that traditional multi-camera tracking techniques fare poorly on our problem, in part due to the fact that all droplets have very similar shapes, sizes and appearances.
Luis A. Zarrabeitia +2 more
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Personalized semantic trajectory privacy preservation through trajectory reconstruction
World Wide Web, 2017Trajectory data gathered by mobile positioning techniques and location-aware devices contain plenty of sensitive spatial-temporal and semantic information, and can support many applications through data analysing and mining. However, attribute-linkage and re-identification attacks on such data may cause privacy leakage, and lead to unexpected serious ...
Yan Dai 0001 +4 more
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3D Trajectory Reconstruction under Perspective Projection
International Journal of Computer Vision, 2015zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Hyun Soo Park +3 more
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K-BestMatch Reconstruction and Comparison of Trajectory Data
2009 IEEE International Conference on Data Mining Workshops, 2009In this paper we propose a map matching method to overcoming the limitations of standard best-match recon- struction strategies. We use a more flexible approach which consider the k-optimal alternative paths to reconstruct the trajectories from the GPS raw data.
Nanni M, Trasarti R
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Algorithms for opportunity trajectory reconstruction
2008 Tyrrhenian International Workshop on Digital Communications - Enhanced Surveillance of Aircraft and Vehicles, 2008In this paper some key points of a new tool being currently developed by Eurocontrol for air traffic control multiradar-multisensor data processing systems performance assessment are described. It summarizes the algorithmic foundations of the trajectory reconstruction process used to obtain reference trajectories from recorded measures. Example results
Juan A. Besada +4 more
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