METHOD AND SYSTEM FOR EXTRACTING THREE-DIMENSIONAL INFORMATION
First Claim
Patent Images
1. A method of extracting three-dimensional information from an image, of a scene comprising:
- comparing the image with a reference image associated with a reference depth map, so as to identify an occluded region in the scene;
analyzing an extent of said occluded region; and
based on said extent, extracting at least one of;
a three-dimensional size and a three-dimensional location of an object occluding said occluded region.
1 Assignment
0 Petitions
Accused Products
Abstract
A method of extracting three-dimensional (3D) information from an image of a scene is disclosed. The method comprises: comparing the image with a reference image associated with a reference depth map, so as to identify an occluded region in the scene; analyzing an extent of the occluded region; and based on the extent of the occluded region, extracting 3D information pertaining to an object that occludes the occluded region. In some embodiments the 3D information is extracted, based, at least in part, on parameters of the imaging system that acquires the image.
72 Citations
41 Claims
-
1. A method of extracting three-dimensional information from an image, of a scene comprising:
-
comparing the image with a reference image associated with a reference depth map, so as to identify an occluded region in the scene; analyzing an extent of said occluded region; and based on said extent, extracting at least one of;
a three-dimensional size and a three-dimensional location of an object occluding said occluded region. - View Dependent Claims (2, 3, 4, 8, 10, 14, 16, 17, 18, 20, 21, 23, 31)
-
-
5-7. -7. (canceled)
-
9. (canceled)
-
11-13. -13. (canceled)
-
15. (canceled)
-
19. (canceled)
-
22. (canceled)
-
24-30. -30. (canceled)
-
32. A system for extracting three-dimensional information, comprising:
-
at least one image capturing system; and a data processor configured for receiving at least one image of a scene from said at least one image capturing system, accessing at least one recorded reference image associated with a reference depth map, comparing said at least one image with said at least one reference image to identify an occluded region in the scene, analyzing an extent of said occluded region, and extracting at least one of;
a three-dimensional size and a three-dimensional location of an object occluding said occluded region, based on said extent. - View Dependent Claims (34)
-
-
33. (canceled)
-
35-36. -36. (canceled)
-
37. A method of monitoring, comprising:
-
analyzing a video stream of a subject so as to identify a posture of said subject; comparing said posture with a database of postures which are specific to said subject; based on said comparison, determining the likelihood that the subject is at risk of falling; and issuing an alert if said likelihood is above a predetermined threshold. - View Dependent Claims (39)
-
-
38. (canceled)
-
40. A method of identifying a subject, comprising:
-
analyzing a video stream of a scene having a plurality of subjects therein so as to extract three-dimensional information pertaining to locations, shapes and sizes of the subjects; dynamically receiving from a cellular positioning system subject-identification codes for uniquely identifying the subjects at said scene; monitoring changes in said three-dimensional locations, so as relate, for at least one subject in the scene, a subject-identification code to a three-dimensional shape and size; and making a record of said relation.
-
-
41. A visual communication system, comprising:
-
at least one access point or beacon, configured for broadcasting data over a communication region; an arrangement of imaging devices deployed over said communication region; and a data processor configured for receiving images from said imaging devices, determining three-dimensional information pertaining to individuals in said images, and broadcasting said three-dimensional information using said at least one access point or beacon such that at least one individual in said region receives both a location and visualization of at least one tracked individual in said region.
-
Specification