I. What Is Educational Video Recording:
It captures video (images of the teacher, students, the presentation on the teaching computer, and the blackboard) and audio (the teacher’s voice during the lesson and students’ responses to questions) from the classroom using cameras and microphones, records them into video files, and stores them. Later, users can log in via a computer to stream the video files on demand or download them for local playback. It is a real-time audio-visual recording and storage system for teaching.
II. What Are the “Three Connections and Two Platforms”?
On September 5, 2012, Vice Premier Liu Yandong (then a State Councilor) stated at the National Teleconference on Educational Informatization: “During the 12th Five-Year Plan period, we must focus on effectively implementing the ‘Three Connections and Two Platforms’ initiative—namely, ‘broadband networks connecting every school, high-quality resources reaching every classroom, and online learning spaces available to every student’—and build public service platforms for educational resources and educational management.”
III. What Is an Education Cloud Platform?
Based on Hishico in-depth understanding of national policies—specifically “Promoting the Construction of Digital Campuses” and the guiding principles for the deep integration of educational technology and information technology under the “Three Connections and Two Platforms” initiative—the company has launched a comprehensive educational cloud platform solution.
Drawing on its expertise in the application of cloud computing, big data, and other technologies in the education sector, the Hishico Education Cloud Platform offers a comprehensive educational application platform that integrates on-demand and live streaming, interactive teaching, online teaching and research, and campus management. It meets the diverse needs of teachers, students, and educational institutions for platform-based management.
The Concept of a Recording Classroom:
Image Recognition and Analysis Technology:
Principle: Based on a database of images accumulated from past experience, the system compares a new image with those stored in memory to identify a specific image. It then matches this image against similar or identical ones in memory and, using specialized software, analyzes it to designate it as a tracking target. When this target moves within the frame, the system controls the camera’s movement to keep the tracking target within the field of view at all times, thereby enabling automatic face tracking.
The recording and broadcasting host features a built-in image recognition and tracking module, eliminating the need for a separate tracking host or analysis camera. Compared to the traditional combination of a recording and broadcasting host and a tracking host, this architecture is simpler, offers superior performance, provides greater stability, and delivers more precise tracking.
Principles of Tracking in Educational Recording Systems:
Face Contour Detection:
• Utilizes state-of-the-art tracking algorithms and facial contour detection methods to achieve an accuracy rate of over 90%.
• Supports tracking and recognition masking functions, wide dynamic range recognition technology for standing, sitting, left-right, and front-back movements, as well as tracking features such as standing duration settings and tracking area recognition.
• Supports facial recognition, facial contour detection, and detection of moving targets. Utilizing a 3D composite image recognition and analysis algorithm, the system can intelligently assess the behavior and movements of teachers and students. It collects 3D depth-of-field data using dedicated tracking and detection devices, enabling independent tracking of teachers, students, and board writing.
Features of the Educational Recording and Broadcasting System:
High-definition recording and broadcast-quality video make it easier to distribute and share educational resources and instructional videos online.
Intelligent tracking eliminates the need for separate tracking hosts and analysis cameras. The recording and broadcasting host features built-in image recognition and image tracking modules that analyze panoramic images using state-of-the-art tracking algorithms, achieving an accuracy rate of over 90%.
The recording and streaming host supports live streaming for up to 50 users online, as well as HDMI output to the classroom observation area.
When paired with the cloud platform for live streaming, it supports a massive number of users accessing and watching the live stream.
• The recording and broadcasting system records audio and video as files, allowing for video playback and on-demand viewing after class; it provides students with a platform for post-class learning and can also be used to produce high-quality lessons for the selection of outstanding teachers and classrooms.
• The recording and broadcasting host features a built-in VOD module that requires no plug-in installation; it enables online video playback via the internet and supports at least 50 simultaneous live streams.
