alert systems
In some implementations, the segmentation occurs within the server system 164 e. g. , by the event processor module 3146. In some implementations, the segmentation includes generating overlapping segments. For example, a 10 second segment is generated every second, such that a new segment overlaps the prior segment by 9 seconds. In some implementations, after the event processor module obtains the video portion corresponding to an event candidate, the event processor module 3146 obtains background factors and performs motion entity detection identification, motion vector generation for each motion entity, and feature identification.