Missing Manhole Cover Detection From a Dynamic Perspective

Data streams in JSON format are output to the specified DIS channels or webhook URLs, including structured data and images.

Result example:

{  
      "stream_id": "002",  
      "event_type": 2031616,  
      "task_id": "taskud8b8499",  
      "timestamp": 1560346229,  
      "message_id": "0DD1BEA6-634B-11E8-8B0B-407D0FAD9218",  
      "image_base64":"/9j/4AAQSkZJRgA...",  
       "data":{  
           "event_set":[  
             {  
                  "bounding_box": {  
                      "x": 100,  
                      "y": 100,  
                      "w": 150,  
                      "h": 150  
                  }, 
                  "detection_id": "2AC19F93-39BH-180F-C020-02483BF10004" 
              }  
         ]  
      }  
  }

JSON format

Field	Type	Description
stream_id	String	Camera ID
event_type	Uint64	Event type of the output message. The value is fixed to 2031616, which is 0x 0000 0000 001F 0000 in hexadecimal format.
task_id	String	Task ID
timestamp	Uint64	Time when the alarm is triggered
message_id	String	Alarm ID in the form of a UUID
data	Object	For details about the output content, see data parameters.
image_base64	String	Base64 encoding results of the video image when the alarm is triggered

data parameters

Field	Type	Description
event_set	List<Object>	List of events generated

event_set parameters

Field	Type	Description
bounding_box	Object	Rectangle for the alarm object
detection_id	String	UUID of the alarm target. In the same detection area, the IDs of consecutively detected alarms remain unchanged. If the detection target is lost during tracking, the ID changes.

bounding_box parameters

Field	Type	Description
x	Int	Horizontal coordinate of the upper-left corner of a bounding box
y	Int	Vertical coordinate of the upper-left corner of a bounding box
w	Int	Width of a bounding box
h	Int	Height of a bounding box