Intelligent shooting system based on distribution cloud

Abstract

The invention belongs to the technical field of teaching, training and recording, especially relates to an intelligent shooting system based on distribution cloud. The intelligent shooting system provided by the invention mainly comprises a basic equipment layer, a core equipment layer and a terminal receiving layer, a standing identification algorithm of a middle school student shooting system in the basic equipment layer is improved, and a background differencing method is used as a moving target detection algorithm, which mainly comprises the following aspects: background updating, image threshold segmentation and contour extraction. A sliding average algorithm is adopted in the background updating; the maximum between-cluster variance criterion is selected for the image threshold segmentation; then a contour is extracted on an image subjected to binaryzation by using a method of hollowing out contour points, and the contour extraction algorithm is further improved by using the contour defect repairing technique; and finally, the extracted contour is expressed by using a Freeman link code, and the algorithm can well extract the contour of a moving target so as to provide a good technical guarantee for the implementation of the intelligent shooting system.

Description

technical field [0001] The invention belongs to the technical field of teaching and training recording and broadcasting, and in particular relates to an intelligent shooting system based on distributed clouds. Background technique [0002] Cloud recording and broadcasting is a way based on the Internet of Things model and using cloud storage and cloud transmission technology to meet modern teaching. The specific implementation refers to the collection of high-definition camera signals, teaching computers, physical booths, voice and other signals through distributed conversion coding equipment through the collection of cluster applications, grid technology, distributed conversion coding equipment, and centralized decoding resource servers. The signal is transmitted to the cloud recording and broadcasting resource management server in the resource management center, and through the "cloud" recording and broadcasting management platform, functions such as teaching and research,...

AI Technical Summary

Problems solved by technology

When the speaking student forgets to turn on the button, post-recording is required. When other students turn on the button by mistake, it will affect the smooth recording of the entire teaching video

[0005] The existing patent is an automatic identification recording and broadcasting system and its working method (201410133368.5), which uses radio frequency technology to mark the coordinates of the seats in the recording and broadcasting room, and uses the central processing unit to perform identification codes on the radio frequency modules of the seats. Matching, analyzing and obtaining the specific coordinate position of the target audience, and then automatically controlling the second camera pan-tilt and the second camera to track and shoot the target audience. In order to realize the identification and positioning of the speaking students, the wireless radio frequency module that needs to be deployed and installed is added And other hardware structure, will undoubtedly increase the economy and use cost

The infrared sensor positioning and tracking technology is relatively accurate, but it will also be affected by external sunlight or heating objects, which will make the positioning and tracking fail suddenly during the recording and broadcasting process.

After comparing the mainstream moving target detection and tracking technologies in video images, it is found that the identification, detection and tracking technologies used in the traditional video courseware recording and broadcasting system are unstable and greatly affected by external factors.

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