Assisted video surveillance of persons-of-interest
First Claim
Patent Images
1. A computer-implemented method for analyzing surveillance video data, the method comprising:
- detecting one or more moving persons in a frame for each frame in a plurality of frames of the video data;
creating a record including image data from a subsection of the frame associated with the detected moving person for each detected moving person and for each frame;
calculating values for a plurality of attributes characterizing each detected moving person by employing a probabilistic model that matches attributes to image data in the record associated with the detected moving person;
receiving an attribute profile including a value for at least one attribute of a person, wherein the plurality of attributes comprises the at least one attribute;
calculating a score for each record based on a comparison of the received attribute profile with the calculated values for the plurality of attributes for the record; and
identifying one or more records as candidate matches to the person of interest based on the calculated scores.
1 Assignment
0 Petitions
Accused Products
Abstract
Methods, systems and media are described for computer-assisted video surveillance. Methods may support detection of moving persons in video frames, extraction of features of the detected moving persons and identification of which detected moving persons are likely matches to a person of interest. Identification of the likely matches may be determined using an attribute-based search, and/or using a specific person-based search. The method may include using likely matches confirmed as images of the person of interest to reconstruct a path of the person of interest.
-
Citations
23 Claims
-
1. A computer-implemented method for analyzing surveillance video data, the method comprising:
-
detecting one or more moving persons in a frame for each frame in a plurality of frames of the video data; creating a record including image data from a subsection of the frame associated with the detected moving person for each detected moving person and for each frame; calculating values for a plurality of attributes characterizing each detected moving person by employing a probabilistic model that matches attributes to image data in the record associated with the detected moving person; receiving an attribute profile including a value for at least one attribute of a person, wherein the plurality of attributes comprises the at least one attribute; calculating a score for each record based on a comparison of the received attribute profile with the calculated values for the plurality of attributes for the record; and identifying one or more records as candidate matches to the person of interest based on the calculated scores. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
-
-
12. A non-transitory computer-readable medium encoded with computer-executable instructions for performing a method comprising:
-
detecting one or more moving persons in a frame for each frame in a plurality of frames of the video data; creating a record including image data from a subsection of the frame associated with the detected moving person for each detected moving person and for each frame; calculating values for a plurality of attributes characterizing each detected moving person by employing a probabilistic model that matches attributes to image data in the record associated with the detected moving person; receiving an attribute profile including a value for at least one attribute of a person, wherein the plurality of attributes comprises the at least one attribute; calculating a score for each record based on a comparison of the received attribute profile with the calculated values for the plurality of attributes for the record; and identifying one or more records as candidate matches to the person of interest based on the calculated scores. - View Dependent Claims (13, 14, 15, 16, 17, 18, 19, 20, 21, 22)
-
-
23. A system for video surveillance, the system comprising:
-
a graphical user interface for receiving search criteria from a user and displaying search results to a user; a processor for executing computer-executable instructions; and a storage for storing records including images of detected moving persons in video data, for storing features extracted from the records and for storing computer-executable code, the computer-executable code comprising computer executable instructions for; a module that detects one or moving persons in a plurality of frames of input video data and saves a record including image information for each detected moving person in each frame; a module that extracts features for each record, wherein the features include features of a non-head portion of a person; and a module that receives a user input regarding a person of interest and calculates a match score for record based on a comparison of the user input regarding the person of interest and the extracted features for the record, the module that calculates a match score including an attribute-based search module that; calculates values for a plurality of attributes characterizing each detected moving person by employing a probabilistic model that matches attributes to image data in the record associated with the detected moving person to obtain values for the plurality of attributes associated with each record; and calculates an attribute-based match score for each record based on a comparison of the received attribute profile with the calculated values for the plurality of attributes for the record.
-
Specification