Monitoring device and method combining video calibration and electronic map

Abstract

The invention provides a monitoring device combining video calibration and an electronic map. The monitoring device comprises a front end camera, a video access device, a network transmission device, a PC server, a software platform and a display device, wherein the front end camera is connected with the video access device, the network transmission device and the PC server in sequence, and the PC server is connected with the software platform and the display device. The method includes the steps that a network video monitoring device is connected to the software platform, the software platform is started and is added with the video access device, calibration comprises the steps that frame abstraction, transition calculation and calibration are carried out on singular video flowing on the network platform, and a first corresponding relation chart of a map and coordinates is formed; configuration calibration is carried out, based on the calibration algorithm, a second relation chart of a map and coordinates of all pixel dots in the abstracted frame of the video is obtained through the first relation chart; video calibration is carried out, video coordinates are adjusted in a three-dimensional posture; the step 203 and the step 204 are carried out repeatedly, calibration and correction of a plurality of video frames are achieved, a traditional electronic map is represented in a scenario simulation mode, original virtual static images are turned into real-time dynamic video flowing, and entire monitoring and early warning decisions on an entire video monitoring area can be effectively improved.

Description

Technical field: [0001] The invention relates to the field of intelligent video monitoring, in particular to a monitoring device and method combining video calibration and electronic map. Background technique: [0002] Electronic maps are widely used in video surveillance systems due to their intuitive performance, rich functions, and sufficient information. By marking the positions of cameras and sensors on the map, it is convenient for users to accurately locate monitoring points. The innovative hot zone navigation function can extend the map to the interior of the building, and present information such as safety facilities, evacuation routes, and dangerous areas to users in a three-dimensional manner. Existing video surveillance management software generally has an electronic map function, which enables users to quickly browse video hotspots and quickly link video images for early warning on the electronic map. [0003] But the traditional electronic ground Figure 1 Ge...

AI Technical Summary

Problems solved by technology

[0003] But the traditional electronic ground Figure 1 Generally, with the help of importing map files such as BMP and JPG, the form of coordinate points is generally used on the electronic map, and the actual video image can only be accessed after clicking the coordinate point. Generally, you can only browse videos one by one on the electronic map, which cannot be realized The synchronous browsing of videos from multiple regional cameras cannot intuitively display the security information and real-time dynamics around the monitoring point, and it is difficult to organically link the situations of many video surveillance images on the large screen. Real real-time dynamic information cannot be fed back on the electronic map

However, the electronic map's feedback on the regional orientation and objects comes from the accuracy and update cycle of the map. Therefore, the traditional electronic map technology has shortcomings such as less information, low efficiency, and slow update.

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