How Much Do You Know About Videoconferencing Camera Function Modules?
May 21, 2018
How much do you know about videoconferencing camera function modules?
Video conferencing cameras have an absolutely important position in videoconferencing. However, how much do you know about the function modules of videoconferencing cameras? The appearance and internal function modules of the video conference camera are shown in Figure 2 and Figure 3 below. Its key components include: 1, lens; 2, sensor (sensor); 3, image processor (ISP); 4, signal transmission interface; 5, control PTZ; 6, microcomputer control unit (MCU). Its working principle is described as follows:
The signal transmission process is described as follows:
The lens is responsible for collecting light and focusing on the sensor. The lens is controlled by the microcomputer control unit to achieve focusing and amplification. The image processor is responsible for converting the RGRG and GBGB of Bayer format graphics (original signal on the sensor) to RGB. 8:8:8 24 Bits are sent to the transmission interface and converted to SDI or HDMI signals and connected to the display or conference system host.
Video conference camera video processor: It is the core device of the video conference camera. It performs autofocus (AF), automatic brightness balance (AE) and white balance (AWB) of the camera. It is commonly called 3A motion and features extracted from the image capture screen. Value, providing a microcomputer control unit to control the lens focus and aperture changes, complete 3A. Microcomputer control unit: At the same time, it also accepts communication commands from outside (video conferencing host) to control the operation mode of PTZ rotation and video conference camera.
