KIND micro class classroom

Kaidi virtual micro lesson production system is the product of the combination of virtual matting technology in film and television production and virtual reality of classroom touch screen in audio-visual education. The system solves some problems in classroom shooting, such as the shooting problem of the speaker and the light-emitting large screen in the same lens. The characters and the light-emitting screen are very important, and they should be photographed clearly. When the speaker uses the touch screen to teach the class, it can be used in the classroom Screen guidance, touch control, blackboard writing and circling display should be accurate. The limited space environment should be used to shoot rich and colorful scenes with different styles, so as to improve the attention of the audience. The speaker can control them by remote control, save manpower, and make it easy for the speaker to shoot and record many times to produce satisfactory works.

Advantages of Kaidi virtual micro classroom production system

The system uses broadcast PTZ camera as the front-end camera, together with the core equipment broadcast acquisition, broadcast recording and editing all-in-one system, to form a set of broadcast level virtual classroom shooting system. The system has not only multi machine broadcast level images, but also virtual reality synthesis and production. Compared with similar products, it has the following advantages.

The first is the camera part. With the progress of science and technology and the increase of personnel cost, PTZ camera has a wide range of market applications at home and abroad, and its share is constantly expanding. The camera we use is kd-sk180p, which is a broadcast PTZ camera. The camera is equipped with 1 / 1.8 large target Exmor RS CMOS imager. It is a top-level high-definition image sensor with high image definition, high illumination and true color restoration. 105mm aperture lens, 85 ° horizontal super wide angle, no image distortion, large amount of lens information in indoor shooting, more space saving, 0.1 ° to 300 ° per second servo motor pan tilt, fast speed, high precision, quiet, extremely stable start brake, general manual operation can not reach the stability of the PTZ camera. The camera not only has broadcast level imaging, but also has high-precision control performance, which brings a new shooting concept to the industry.

Kd-lcc900xh-8nw is the core equipment of Kaidi virtual micro classroom production system, which has many advantages compared with similar products.

Audio part: the system is a digital mixer + analog mixer, which supports the direct input of professional microphone, and can mix with the digital audio embedded in the camera, and has a built-in hardware audio delayer. Through its adjustment, it can meet the requirements of audio and picture synchronization, does not rely on any external equipment, and has a complete set of audio processing system.

Video part: including all video input interface and content, SDI, HDMI, NDI, stream full interface, full digital mixing, alpha online packaging, CG subtitles, rich DVE switching, etc., making the video content extremely rich. Mask technology, the most advanced matting technology in the industry, can pick out clean images even in cluttered light environment. GPU algorithm of true 3D virtual engine and many other top technology applications in the industry. It makes the system almost omnipotent in video.

The all-in-one system also provides a guide call system and a guide prompt system tally, a complete PTZ camera CCU control system, an independent CG alpha hardware fast execution system, a 64 bit system, a 4K encoding kernel, a live recording system, and an independent hardware micro SD recording unit makes the kd-lcc900xh-8nw system extremely powerful. The total weight of such a powerful all-in-one machine is about 5kg, and the size is like a suitcase, which can be carried by female users.

Micro classroom production environment, as shown in the figure below, L-shaped matting green background, embedded touch screen (standard 75 inch).

Equipment list of Kaidi virtual micro classroom production system

1. Camera: kd-sk180p × 1 set;

2. Virtual classroom production system: kd-lcc900xh-8nw × 1 set of Kaidi acquisition, broadcasting, recording and broadcasting integrated machine;

3. Tripod: Carbon Fiber Tripod c6620a × 1;

4. Wireless microphone: head mounted wireless microphone × 1 set;

5. Micro classroom production environment: L-shaped matting green background, embedded touch screen (standard 75 inch) × 1 set;

6. Touch all in one machine: 75 inch touch all in one machine × 1 set;

7. TV: 50 inch LED TV with bracket × 1 set;

8. Remote control: bidirectional RF remote control (control recording, stop, pause) × 1

9. Surface light: LED surface light with bracket × 1 set;

10. Cable: full set of cable × 1 set;