MultiStream: A Simple and Fast Multiple Cameras Visual Monitor and Directly Streaming

Monitoring and streaming is one of the most important applications for the real time cameras. The research of this has provided a novel design idea that uses the FFmpeg and Tkinter, combining with the libraries: OpenCV and PIL to develop a simple but fast streaming toolkit MultiSteam that can achieve the function of visible monitoring streaming for multiple simultaneously. MultiStream is able to automatically arrange the layout of the displays of multiple camera windows and intelligently analyze the input streaming URL to select the correct corresponding streaming communication protocol. Multiple cameras can be streamed with different communication protocols or the same protocol. Besides, the paper has tested the different streaming speeds for different protocols in camera streaming. MultiStream is able to gain the information of media equipment on the computer. The configuration information for media-id selection and multiple cameras streaming can be saved as json files.

Multi-area Target Individual Detection with Free Drawing on Video

This paper has provided a novel design idea and some implementation methods to make a real time detection of multi-areas with multiple detecting areas that are generated by the real time drawing on the screen display of the video. The drawing on the video will remain the output as polylines, and the colors of the outlines will change when the stage of drawing or detecting is changed. The shape of the drawn area is free to be customized and real-time effective. The configuration of the drawn areas can be renewed and the detecting areas are working individually. The detection result should be shown with a GUI designed by Tkinter. The object recognition model was developed on YOLOv5 but can be changed to others, which means the core design and implementation idea of this paper is model-independent. With PIL and OpenCV and Tkinter, the drawing effect is real time and efficient. The design and code of this research is basic and can be extended to be implemented in numerous monitoring and detecting situations.