图像处理方法、装置、设备及存储介质
By plotting the shielded area in the camera image and calculating the percentage of overlap between it and the alarm area, the problem of false alarms from lights and smoke was solved, and the accuracy and reliability of fire alarms were achieved.
CN115457115BActive Publication Date: 2026-07-17CHINA TOWER CO LTD +1
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- CHINA TOWER CO LTD
- Filing Date
- 2022-10-13
- Publication Date
- 2026-07-17
AI Technical Summary
Technical Problem
In existing technologies, phenomena such as lights and smoke are often misidentified as fires, resulting in a high rate of false alarms and missed alarms, which poses challenges for relevant personnel.
Method used
By acquiring camera images, the shielded area is plotted and its coordinates are obtained in the first coordinate system. The alarm area is identified and transformed to the PTZ coordinate system. The percentage of the overlap between the shielded area and the alarm area is calculated and compared with the preset alarm threshold. Alarm processing or suppression processing is then performed.
Benefits of technology
It reduced the false alarm rate and missed alarm rate, improved the accuracy of fire alarms, and reduced unnecessary alarm interference.
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Smart Images
Figure CN115457115B_ABST
Abstract
本申请实施例提供了一种图像处理方法、装置、设备及存储介质，属于计算机视觉技术领域。该方法可包括：获取摄像机的图像画面；在摄像机的图像画面上标绘屏蔽区域并获取屏蔽区域在第一坐标系下的第一坐标值；识别摄像机的图像画面中包括目标事件的对应图像，基于目标事件对应图像确定告警区域，并获取告警区域在第一坐标系下的第二坐标值；获取第一坐标值转换到PTZ坐标系下的第一PTZ坐标值，以及第二坐标值转换到PTZ坐标系下的第二PTZ坐标值；获取告警区域和屏蔽区域的重叠部分占告警区域的百分比；获取百分比与预设告警阈值的比对结果，由比对结果执行告警处理或者告警压制处理。本申请可通过准确识别屏蔽区域和告警区域，以减少告警误报率和漏报率。
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