Methods and apparatuses for monitoring objects of interest in area with activity maps
First Claim
1. An apparatus for monitoring movement of objects of interest in an area, the apparatus comprising:
- an activity map generation circuit configured to,generate a plurality of activity maps based on video content from a plurality of cameras, each of the plurality of activity maps being indicative of relative activity of the objects of interest over time within a field of view of a camera among the plurality of cameras, and each of the plurality of cameras having a different corresponding field of view in the area, andstandardize the plurality of activity maps with regard to a single common point of view;
a unified spatial activity map generation circuit configured to combine the plurality of standardized activity maps into a unified activity map; and
wherein the activity map generation circuit is further configured to standardize the plurality of activity maps with regard to the single common point of view by at least one ofmodifying a direction feature with respect to tilt of at least one camera among the plurality of cameras,transforming a spatial perspective of at least one of the plurality of activity maps from image coordinates to coordinates corresponding to the single common point of view,normalizing an orientation of at least one of the plurality of activity maps,normalizing probabilities with respect to at least one of the plurality of cameras, andtransforming a perspective spread of at least one of the plurality of activity maps.
4 Assignments
0 Petitions
Accused Products
Abstract
An apparatus for monitoring movement of objects of interest in an area includes an activity map generation circuit and a unified activity map generation circuit. The activity map generation circuit is configured to: generate a plurality of activity maps based on video content from a plurality of cameras, each of the plurality of activity maps being indicative of relative activity of the objects of interest over time within a field of view of a camera among the plurality of cameras, and each of the plurality of cameras having a different corresponding field of view in the area; and standardize the plurality of activity maps with regard to a single common point of view. The unified spatial activity map generation circuit is configured to combine the plurality of standardized activity maps into a unified activity map.
-
Citations
18 Claims
-
1. An apparatus for monitoring movement of objects of interest in an area, the apparatus comprising:
-
an activity map generation circuit configured to, generate a plurality of activity maps based on video content from a plurality of cameras, each of the plurality of activity maps being indicative of relative activity of the objects of interest over time within a field of view of a camera among the plurality of cameras, and each of the plurality of cameras having a different corresponding field of view in the area, and standardize the plurality of activity maps with regard to a single common point of view; a unified spatial activity map generation circuit configured to combine the plurality of standardized activity maps into a unified activity map; and wherein the activity map generation circuit is further configured to standardize the plurality of activity maps with regard to the single common point of view by at least one of modifying a direction feature with respect to tilt of at least one camera among the plurality of cameras, transforming a spatial perspective of at least one of the plurality of activity maps from image coordinates to coordinates corresponding to the single common point of view, normalizing an orientation of at least one of the plurality of activity maps, normalizing probabilities with respect to at least one of the plurality of cameras, and transforming a perspective spread of at least one of the plurality of activity maps. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
-
-
9. An apparatus for monitoring movement of objects of interest in an area, the apparatus comprising:
-
an activity map generation circuit configured to generate, using a single motion blur method, a plurality of activity maps based on video content from a plurality of cameras, each of the plurality of activity maps being indicative of relative activity of the objects of interest over time within a field of view of a camera among the plurality of cameras, and each of the plurality of cameras having a different corresponding field of view in the area, and standardize the plurality of activity maps with regard to a single common point of view; a unified spatial activity map generation circuit configured to combine the plurality of standardized activity maps into a unified activity map; and wherein the activity map generation circuit is further configured to standardize the plurality of activity maps with regard to the single common point of view by at least one of, modifying a direction feature with respect to tilt of at least one camera among the plurality of cameras, transforming a spatial perspective of at least one of the plurality of activity maps from image coordinates to coordinates corresponding to the single common point of view, normalizing an orientation of at least one of the plurality of activity maps, normalizing probabilities with respect to at least one of the plurality of cameras, and transforming a perspective spread of at least one of the plurality of activity maps. - View Dependent Claims (10, 11, 12, 13, 14, 15, 16)
-
-
17. A method for monitoring movement of objects of interest in an area, the method comprising:
-
generating a plurality of activity maps based on video content from a plurality of cameras, each of the plurality of activity maps being indicative of relative activity of the objects of interest over time within a field of view of a camera among the plurality of cameras, and each of the plurality of cameras having a different corresponding field of view in the area; standardizing the plurality of activity maps with regard to a single common point of view; combining the plurality of standardized activity maps into a unified activity map; at least one of storing and displaying the unified activity map; and wherein the standardizing the plurality of activity maps with regard to a single common point of view includes at least one of modifying a direction feature with respect to tilt of at least one camera among the plurality of cameras, transforming a spatial perspective of at least one of the plurality of activity maps from image coordinates to coordinates corresponding to the single common point of view, normalizing an orientation of at least one of the plurality of activity maps, normalizing probabilities with respect to at least one of the plurality of cameras, and transforming a perspective spread of at least one of the plurality of activity maps. - View Dependent Claims (18)
-
Specification