Network camera decoding method based on OpenCV

Abstract

The invention discloses a network camera decoding method based on OpenCV, which relates to the field of security and protection. The method comprises the steps that firstly, in response to the fact that a light curtain module detects a first obstacle, a starting instruction is sent to a network camera corresponding to the light curtain module, and a cloud platform sequentially collects each frameof first image of the network camera in real time based on OpenCV; then, a first fixed point on the top of the head of the pedestrian in the first image is identified, the shooting direction of the network camera is controlled to point to the first fixed point, and a shooting angle of the network camera is acquired in real time, wherein the shooting angle is an included angle between the network camera and the vertical direction; then, a first real-time shooting angle and a second real-time shooting angle are collected, the height of the pedestrian is obtained, and the abdomen thickness of thepedestrian is solved; and finally, a first video formed by each frame of first image is saved, and the height, the abdominal thickness and the passing timestamp of the pedestrian are marked. The shotvideo of the network camera is effectively analyzed through OpenCV, so that the required data can be obtained through image processing.

Description

technical field [0001] The invention relates to the field of intelligent security, in particular to an OpenCV-based network camera decoding method. Background technique [0002] OpenCV is a cross-platform computer vision library released under the BSD license (open source), which can run on Linux, Windows, Android and Mac OS operating systems. It is lightweight and efficient-consisting of a series of C functions and a small number of C++ classes, while providing interfaces for languages ​​such as Python, Ruby, and MATLAB, and implementing many general-purpose algorithms in image processing and computer vision. [0003] OpenCV is written in C++ language, and its main interface is also C++ language, but still retains a large number of C language interfaces. The library also has extensive interfaces to Python, Java and MATLAB / OCTAVE (version 2.5). The API interface functions of these languages ​​can be obtained through online documentation. Now also provides support for C#, ...

AI Technical Summary

Problems solved by technology

[0008] In view of some defects in the prior art, the technical problem to be solved by the present invention is to provide a network camera decoding method based on OpenCV, which solves the problem that no one passes by and the camera is often open in the prior art, and aims to detect pedestrians through light curtains. , and take pictures when there are pedestrians, to avoid long-term shooting of the camera, wasting the service life of the camera and power consumption

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