Event Size Estimation for Adaptive Surveillance Camera Capture
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Solution Overview
Problem
Surveillance systems often fail to capture abnormal events at an appropriate size within the surveillance area, leading to inadequate understanding of incidents by security personnel.
Innovation Solution
A system comprising a sensor data analyzer, event analyzer, and actuator that detects events, estimates their size, and adjusts surveillance camera settings accordingly to capture the entire event, using sensors like microphones and infrared devices.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If a fixed surveillance camera captures the surveillance area, then the surveillance area is covered, but the captured event size is insufficient to adequately cover the abnormal event
Solution Approach 1:
The patent applies dynamics by making the camera field of view adjustable rather than fixed. The camera can dynamically change its capture range based on the estimated size of the detected event, allowing it to zoom in for small events and zoom out for large events, thus resolving the contradiction between capturing sufficient event detail and adapting to different event scales
Solution Approach 2:
The system changes the camera's operational parameters (field of view, zoom level) based on the estimated event size. By adjusting these parameters dynamically according to the detected event characteristics, the system achieves both precise event capture and adaptability to various event scales
2Loss of information
If the surveillance camera captures only a part of the whole event, then the camera maintains its fixed position, but security personnel cannot understand the incident appropriately
Solution Approach 1:
The patent introduces an event size estimation module as an intermediary between the sensor data analyzer and the camera controller. This intermediary estimates the size of detected events and uses this information to determine the appropriate camera field of view, ensuring that the camera captures the complete event context without requiring complex manual intervention or system reconfiguration
3Loss of time
If the camera captures the entire event, then complete event information is obtained, but the response time for security personnel is delayed
Solution Approach 1:
The system performs preliminary action by estimating the event size and pre-adjusting the camera field of view before security personnel need to view the footage. This automated preliminary adjustment ensures the camera is already positioned to capture the complete event when security personnel respond, eliminating delays that would occur with manual camera adjustment
Data Source
AI summary
A system for monitoring event related data including a sensor data analyzer, an event analyzer and an actuator is disclosed. The sensor data analyzer detects events based on sensor data, the event analyzer couples to the sensor data analyzer and estimates the size of the detected entire events based on event related data of the detected events from the sensor data analyzer, and the actuator couples to the sensor data analyzer and the event analyzer and actuates a predetermined device based on the estimated size of the detected entire events.