Identifying spatial locations of events within video image data

摘要

An invention for identifying a spatial location of an event within video image data is provided. Disclosed are embodiments for detecting an object and obtaining trajectory data of a trajectory of the object within the video image data from a sensor device; converting the trajectory data into a contour-coded compressed image; generating, based on the trajectory data, a searchable code that contains a set of locations traversed by the trajectory of the object within the video image; associating the searchable code with the contour-coded compressed image in a database; and returning, in response to a query having a selected location that corresponds a location of the set of locations in the searchable code, an image of the trajectory data corresponding to the object based on the contour-coded compressed image in the database.

主权项

1. A method for identifying a spatial location of an event within video image data comprising:
generating, by at least one computer device, based on trajectory data of a trajectory of an object within video image data, a searchable code that contains a set of locations traversed by the trajectory of the object within the video image; converting, by the at least one computer device, the trajectory data into a contour-coded compressed image, wherein the converting further comprises:
dividing the video image data into a plurality of pixel regions;determining, for each pixel region in the plurality of pixel regions, whether the trajectory intersects any pixel in the pixel region; andindicating, for each pixel region, a result of the determining in a memory location in the contour-coded compressed image that corresponds to the pixel region; and returning from a database, in response to a query having a selected location that corresponds a location of the set of locations in the searchable code, an image of the trajectory data corresponding to the object based on the contour-coded compressed image in the database.