Linear Differential Algorithm for Motion Recovery: AGeometric Approach
International Journal of Computer Vision
Comparison of Approaches to Egomotion Computation
CVPR '96 Proceedings of the 1996 Conference on Computer Vision and Pattern Recognition (CVPR '96)
Summed-area tables for texture mapping
SIGGRAPH '84 Proceedings of the 11th annual conference on Computer graphics and interactive techniques
Modeling of Moving Objects and Querying Videos by Trajectories
MMM '04 Proceedings of the 10th International Multimedia Modelling Conference
Camera Motion Characterization through Image Feature Analysis
ICCIMA '05 Proceedings of the Sixth International Conference on Computational Intelligence and Multimedia Applications
IEEE Transactions on Multimedia
Nonparametric motion characterization for robust classification of camera motion patterns
IEEE Transactions on Multimedia
Semantic-Based Surveillance Video Retrieval
IEEE Transactions on Image Processing
Rapid estimation of camera motion from compressed video with application to video annotation
IEEE Transactions on Circuits and Systems for Video Technology
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This paper describes an approach for the camera motion estimation and moving object detection via tracking of the local image regions through the image sequence. The propose algorithm consists of two parts. First image of the sequence is used to compose a triangular grid which vertices are used as a feature points. Grid is optimized in order to increase number of elements in the regions with higher level of details. This grid is then used as an initial for the next frame in order to track local features. Neighborhood of each vertex is used to generate color distribution model which is used as a feature vector for tracking. In the second part of the proposed algorithm grids of two consistent frames used to estimate motion of correspondent grid vertices in order to form a motion field. This field is used to find dominant motions and make assumptions for background-foreground motion. Background motion is then used to estimate camera motion parameters.