Image analysis techniques may be employed to identify moving and/or static object within a sequence of spatial data frames (102, 300). Attributes of interest may be identified within a sequence of spatial data frames (102, 300). The attributes of interest may be clustered and examined across frames
Image analysis techniques may be employed to identify moving and/or static object within a sequence of spatial data frames (102, 300). Attributes of interest may be identified within a sequence of spatial data frames (102, 300). The attributes of interest may be clustered and examined across frames of the spatial data to detect motion vectors. A system (200) may derive information about these attributes of interest and their motion over time and identify moving and/or static objects, and the moving and/or static objects may be used to generate natural language messages describing the motion of the attributes of interest. Example uses include description of moving and/or static objects in data such as weather data, oil spills, cellular growth (e.g., tumor progression), atmospheric conditions (e.g., the size of a hole in the ozone layer), or any other implementation where it may be desirable to detect motion vectors in a sequence of spatial data frames.
대표청구항▼
1. An apparatus that is configured to identify a moving object in spatial data, the apparatus comprising: a memory coupled to at least one processor; andthe at least one processor, configured to:receive, from a spatial data source, a data structure that comprises spatial-temporal data, wherein spati
1. An apparatus that is configured to identify a moving object in spatial data, the apparatus comprising: a memory coupled to at least one processor; andthe at least one processor, configured to:receive, from a spatial data source, a data structure that comprises spatial-temporal data, wherein spatial-temporal data comprises a combination of time series data and spatial data;convert the spatial-temporal data to a sequence of spatial data frames, where the sequence of spatial data frames represents the spatial data as a sequence of image-like objects;determine a location of one or more clusters in the sequence of spatial data frames at two or more of a plurality of time values, the sequence of spatial data frames defining one or more locations of the one or more clusters at the plurality of time values;determine that a first cluster of the one or more clusters in a first of the two or more time values corresponds to a second cluster of the one or more clusters in a second of the two or more time values; wherein, to determine that the first cluster corresponds to the second cluster, the processor is further configured to: determine a location of each cluster at the first of the two or more time values;determine a location of each cluster at the second of the two or more time values;compute a cluster similarity score for one or more of the clusters at the first time value with one or more of the clusters at the second time value; andassociate the first cluster with the second cluster based on the similarity score;determine at least one motion vector between the first cluster and the second cluster; anddetermine a moving object based on information comprising the at least one motion vector, wherein the processor is further configured to generate an output text using a natural language generation system, the output text linguistically describing the moving object. 2. The apparatus of claim 1, wherein the sequence of spatial data frames is represented as a set of frames, each frame corresponding to one of the plurality of time values. 3. The apparatus of claim 2, wherein each frame comprises a coordinate representation of a location. 4. The apparatus of claim 1, wherein the first cluster is a first set of one or more attributes of interest and the second cluster is a second set of attributes of interest. 5. The apparatus of claim 4, wherein the first cluster is one or more points contiguous attributes of interest. 6. The apparatus of claim 4, wherein the first cluster represents two or more merged clusters. 7. The apparatus of claim 4, wherein the processor is further configured to: compute a first point location of the first cluster and a second point location of the second cluster; anddetermine the at least one motion vector using the first point location and the second point location. 8. The apparatus of claim 4, wherein the first point location is a centroid of the first cluster and the second point location is a centroid of the second cluster. 9. The apparatus of claim 1, wherein the processor is further configured to compare a first content of the first cluster with a second content of the second cluster, and wherein the information further comprises the results of the comparison. 10. The apparatus of claim 1, wherein the at least one motion vector comprises a speed and a direction of motion. 11. The apparatus of claim 1, wherein the processor is further configured to determine a transition type between the first cluster and the second cluster. 12. The apparatus of claim 1, wherein the moving object is determined using a domain model specific to a spatial data type. 13. The apparatus of claim 12, wherein the spatial data type is at least one of weather data, traffic data, medical data, or computer network data. 14. The apparatus of claim 1, wherein the processor is further configured to remove at least one of the one or more clusters from consideration based on at least one of a size of the cluster or the cluster motion type of the at least one of the one or more clusters. 15. The apparatus of claim 1, wherein the similarity score is based on at least one of a similarity of the size, the shape, or the location of the first cluster and the second cluster. 16. The apparatus of claim 1, wherein the first cluster is associated with the second cluster based on the association maximizing a frame similarity score, the frame similarity score derived from the similarity score of each cluster at the first time value to at least one object at the second time value. 17. The apparatus of claim 1, wherein the first cluster is associated with the second cluster based on the association maximizing the cluster similarity score for the first cluster. 18. The apparatus of claim 1, wherein the processor is further configured to receive the sequence of spatial data frames from a spatial data source. 19. The apparatus of claim 18, wherein the spatial data source comprises at least one of one or more sensors, a database, or a remote computer. 20. A non-transitory computer readable storage medium that is configured to identify a moving object in spatial data, the non-transitory computer readable storage medium comprising instructions, that, when executed by a processor, configure the processor to: receive, from a spatial data source, a data structure that comprises spatial-temporal data, wherein spatial-temporal data comprises a combination of time series data and spatial data;convert the spatial-temporal data to a sequence of spatial data frames, where the sequence of spatial data frames represents the spatial data as a sequence of image-like objects;determine a location of one or more clusters in the sequence of spatial data frames at two or more of a plurality of time values, the sequence of spatial data frames defining one or more locations of the one or more clusters at the plurality of time values;determine that a first cluster of the one or more clusters in a first of the two or more time values corresponds to a second cluster of the one or more clusters in a second of the two or more time values; wherein, to determine that the first cluster corresponds to the second cluster, the instructions further configure the processor to: determine a location of each cluster at the first of the two or more time values;determine a location of each cluster at the second of the two or more time values;compute a cluster similarity score for one or more of the clusters at the first time value with one or more of the clusters at the second time value; andassociate the first cluster with the second cluster based on the similarity score;determine at least one motion vector between the first cluster and the second cluster; anddetermine a moving object based on information comprising the at least one motion vector; andgenerate an output text using a natural language generation system, the output text linguistically describing the moving object.
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