Video surveillance system and video surveillance method

Abstract

A video surveillance system includes: a detection unit that detects a predetermined event on the basis of an image captured by a first imaging apparatus; and a control unit that controls a second imaging apparatus such that the second imaging apparatus captures an image of a predetermined position after the detection of the predetermined event.

1 . A video surveillance system comprising:
 at least one memory storing instructions; and   at least one processor configured to execute the instructions to:
 detect an event indicating that states of multiple persons are changed simultaneously within a detection target region of a facility; and 
 control a plurality of imaging apparatuses to capture all of plural entrances of the facility when the predetermined event is detected. 
   
     
     
         2 . The image processing system according to  claim 1 ,
 wherein the at least one processor is configured to execute the instructions to further control a movable imaging apparatus capable of changing an image capturing direction to capture an entrance of the facility.   
     
     
         3 . The image processing system according to  claim 1 ,
 wherein the at least one processor is configured to execute the instructions to further detect, from an image captured by a first imaging apparatus, the event indicating that the states of multiple persons are changed simultaneously.   
     
     
         4 . The image processing system according to  claim 3 ,
 wherein the at least one processor is configured to execute the instructions to further control a second imaging apparatus to capture an entrance of the facility when the event is detected.   
     
     
         5 . The image processing system according to  claim 1 ,
 wherein the at least one processor is configured to execute the instructions to further detect, as the event, a large number of persons crouch down all at once.   
     
     
         6 . The image processing system according to  claim 1 ,
 wherein the at least one processor is configured to execute the instructions to further detect, as the event, crowds start to run all together outward from a certain point.   
     
     
         7 . A video surveillance method executed by a computer, the video surveillance method comprising:
 detecting an event indicating that states of multiple persons are changed simultaneously within a detection target region of a facility; and   controlling a plurality of imaging apparatuses to capture all of plural entrances of the facility when the predetermined event is detected.   
     
     
         8 . The video surveillance method according to  claim 7 , further comprising
 controlling a movable imaging apparatus capable of changing an image capturing direction to capture an entrance of the facility.   
     
     
         9 . The video surveillance method according to  claim 7 , further comprising
 detecting, from an image captured by a first imaging apparatus, the event indicating that the states of multiple persons are changed simultaneously.   
     
     
         10 . The video surveillance method according to  claim 9 , further comprising
 controlling a second imaging apparatus to capture an entrance of the facility when the event is detected.   
     
     
         11 . The video surveillance method according to  claim 7 , further comprising
 detecting, as the event, a large number of persons crouch down all at once.   
     
     
         12 . The image processing system according to  claim 7 , further comprising
 detecting, as the event, crowds start to run all together outward from a certain point.   
     
     
         13 . A non-transitory computer-readable medium storing a program for causing a computer to perform operations, the operations comprising:
 detecting an event indicating that states of multiple persons are changed simultaneously within a detection target region of a facility; and   controlling a plurality of imaging apparatuses to capture all of plural entrances of the facility when the predetermined event is detected.   
     
     
         14 . The non-transitory computer-readable medium according to  claim 13 ,
 wherein the operations further comprise controlling a movable imaging apparatus capable of changing an image capturing direction to capture an entrance of the facility.   
     
     
         15 . The non-transitory computer-readable medium according to  claim 13 ,
 wherein the operations further comprise detecting, from an image captured by a first imaging apparatus, the event indicating that the states of multiple persons are changed simultaneously.   
     
     
         16 . The non-transitory computer-readable medium according to  claim 15 ,
 wherein the operations further comprise controlling a second imaging apparatus to capture an entrance of the facility when the event is detected.   
     
     
         17 . The non-transitory computer-readable medium according to  claim 13 ,
 wherein the operations further comprise detecting, as the event, a large number of persons crouch down all at once.   
     
     
         18 . The non-transitory computer-readable medium according to  claim 13 ,
 wherein the operations further comprise detecting, as the event, crowds start to run all together outward from a certain point.