Education Recording System

The education industry is driven by the trend of technology and raise a wave of digitization. With the help of audio-visual sensors and IoT technologies, advanced countries all hope to collect and summarize the actual teaching situations.Enable the learning curve to be visualized efficiently through big data and AI technology and achieve precision education 4.0.

The origin of education recording system

Are you familiar with this kind of dialogues?

“ How do I make up a missed class session? ”

“ For the make-up session you need to watch the recorded video ”

In the past, the teaching content of the classroom will be recorded and stored on a disc, so the students can make-up lessons easily by reviewing the video.With the rise of the Internet, optical discs have been replaced by the cloud servers and simple cameras also expanded into various multimedia devices.

Thanks to the education recording systems, not only teacher’s images can be recorded, but also the connection of different input sources and the teaching contents in the classroom can be integrated simultaneously.

The challenge of education recording system

High-quality digital content requires materials from different aspects, such as a close-up of a teacher, a full picture of whole class, and contents on the whiteboard and so on. Therefore, at least three cameras need to be deployed around the classroom and combined with the display of teacher’s computer, so that the classroom situation can be clearly recorded from multiple perspectives. In the education market, we call it an education recording system. Regardless to import images through a video capture card, a synchronization mechanism to make the teacher's classroom images consistent with other images, the PGM function for stitching different images, or video streaming to another campus for live teaching.

With the education recording systems combining technologies such as artificial image-, behavior- and voice recognitions, the learning efficiency of students and the quality of classroom teaching can be improved.So except a larger number of cameras is required, the feature is also fully relies on software to achieve it.

Extended reading: Yuan and Ibase jointly build AI smart classroom

It is not easy to build a high-quality educational recording software. The reasons are as follows:

1. System developers are incapable to develop ideal applications for customers due to the lack of knowledge about video production functions building.

2. Due to the lack of understanding about codec technologies, recording 3~5 channels already cause the system performance overloaded.

3. Unfamiliar with the streaming protocols of education market and encounter difficulties in developing remote teaching applications.

Three advantages of using NexVDO SDK

YUAN has been cultivated in video imaging industry for decades and able to solve the above issues for software developers. Our exclusive development of NexVDO SDK toolkit has successfully helped 100+ customers to develope intelligent education recording systems, whether it’s for screen switching or real-time editing of special effects. Can all be implemented quickly through NexVDO SDK!

Efficient video processing function

While customers used to develop video capture card functions based on DirectShow / V4L2 architecture, NexVDO SDK only needs 4 APIs to achieve simple and ultra-low latency of real-time video audio data for developers to do video recording, streaming and audio-visual post-production. The NexVDO SDK can assist developers to integrate materials of teachers’ presentations, video audio streaming, multimedia files, and even website content into the recording software. We also provide special effects engine transition for screen switching between the materials, assisting the educational recording software to compile these materials into multimedia images to provide the students with auxiliary education after class.

Economize system resource consumption

Regarding the rendering performance of multi-channel images in the classroom, NexVDO SDK uses Thumbdraw's display technology, allowing users to significantly reduce CPU performance without adding the cost of external card and further to increase resource utilization.For video recording, YUAN’s professional CODEC team of NexVDO SDK has integrated the codec of Intel, nVIDIA and ARM. Developers can experience light speed effect brought by native GPU without spending any time learning the codec tools of each GPU supplier, allowing R&D to dedicate the time in products development!

Diversified video streaming protocol

NexVDO SDK supports a variety of one- & multi-directional streaming protocols, including RTSP, RTMP, TS over IP, etc. Developers can easily stream campus TV stations and broadcasts to third-party platforms by using NexVDO SDK based on customers need.For live interactive, NexVDO SDK also provides the WebRTC protocol which can achieve point-to-point instant transmission by opening the browser, allowing developers to easily realize real-time text, image and audio dialogue functions. “Regarding the performance issues of education recording system that developers often encounter. YUAN optimize the codec process based on Intel and NVIDIA chips, which can be shorten the development time by 60% and have more effort spending in other products."

The last mile of smart education recording

With the booming development of education recording markets and the digitization of educational contents, customers in the education industry are no longer satisfied with recording and broadcasting. They want to integrate AI technology into their digital contents for intelligent data analysis.Such as the real-time speech recognition industry combined with the subtitle archive function provided by the NexVDO SDK of YUAN, to digitize the speech and assist students to find the teaching fragment among large amount of digital contents with one click.

NexVDO SDK provides biometric identifications and behavior analysis modules, including face recognition, emotion recognition, head down, raising hand, head turning and six emotion analysis, allowing users to observe classroom changes of students and record in the system instantly. After class, a report will be automatically generated for educators to quantify classroom effects.

Extended reading: The must-know NexVDO smart module

Great oaks from little acorns grow. The extension of AI ​​intelligent broadcast recording system is based on the educational recording system.YUAN has strong R&D capabilities which can assist you to meet the needs of a variety of different markets and to find the blue ocean strategy in a fully competitive market.