Trajectory analysis with geometric features
| DWPI Title: System for extracting features from trajectory data recorded during motion of airplane, has processor which generates n-dimensional feature vector representative of airplane trajectory from trajectory data |
| Abstract: Described herein are various technologies pertaining to extracting one or more features from trajectory data recorded during motion of a body, and further, generating a n-dimensional feature vector based upon the one or more extracted features. The n-dimensional feature vector enables expedited analysis of the trajectory data from which the feature vector was generated. For example, rather than having to analyze a trajectory curve comprising a large number of time-position data points, the n-dimensional feature vector can be compared with one or more search parameters to facilitate clustering of the trajectory data associated with the n-dimensional feature vector with other trajectory data which also satisfies the search request. The trajectory data can be plotted on a screen in combination with the n-dimensional feature vector, and other pertinent information. The trajectory data, etc., can be displayed using heat maps or other graphical representation. |
| Use: System for extracting features from trajectory data recorded during motion of airplane, so as generate n-dimensional feature vectors based on features. |
| Advantage: The n-dimensional feature vector can be compared with one or more search parameters to facilitate clustering of the trajectory data associated with the n-dimensional feature vector with other trajectory data which also satisfies the search request. By generating a n-dimensional feature vector for the trajectory data, any analysis of the trajectory data can be performed based upon analysis of the one or more features from which the n-dimensional feature vector was formed. The n-dimensional feature vectors can be exported to a database, e.g., in data store or repository, to enable comparisons between large data sets to be performed expeditiously, with minimal computational complexity. |
| Novelty: The system (100) has a processor (140) which generates an n-dimensional feature vector (171-1-171-n) from trajectory data (110-1-110-n) that comprises positional coordinates of the airplane during flight and timestamps assigned to the coordinates. The vector is representative of the trajectory of the airplane, and comprises values for predefined features (161-1-161-n) corresponding to the flight. One of values corresponds to maximum speed of flight. The vectors are stored in a computer-readable data repository (120) and searched if needed based on a searched value. |
| Filed: 10/29/2015 |
| Application Number: US14927083A |
| Tech ID: SD 13064.0 |
| This invention was made with Government support under Contract No. DE-NA0003525 awarded by the United States Department of Energy/National Nuclear Security Administration. The Government has certain rights in the invention. |
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