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With the increase in the number of network cameras, in the end what kind of configuration can be better to create a near-real meeting effect? We may wish to focus on the following aspects:
Resolution
In general, it is affected by bandwidth and compression factors. The resolution of the network camera is generally not very high, but for the video conference, since there is no need to pursue too detailed imaging, no less than 640x480 resolution (300,000 pixels) can basically meet the needs of video conferencing. . If it is lower than this standard, it will result in blurring of the picture quality, while an excessively high resolution may cause a decrease in the continuity of the picture.
Processing frame number
In addition to resolution, the number of frames processed by the camera per second is also an important factor in determining the quality of the image. In general, the ideal standard is 30 frames/second.
sensor
For the camera, the performance of the sensor largely determines the imaging quality of the camera. In general, current cameras use CCD imaging chips for linking. Compared with CMOS chips, although the CCD chip is more energy-consuming, its imaging effect cannot be surpassed by CMOS within a short time.
Camera type
Because videoconferencing is a "live shooting, streaming, and playback" mode, digital video cameras that can obtain clearer images faster are the first choice for video conferencing. On the other hand, because such cameras generally have a FireWire or USB interface to connect to a computer, they also provide advanced settings and video output capabilities, which can provide higher image and transmission quality.
In fact, which camera should be selected as the conference application should be determined more specifically according to the characteristics of the conference. Under normal circumstances, meetings involving more professional skills or activities for learning and discussing may have higher requirements on video quality. Therefore, cameras with better imaging quality must be selected. For ordinary exchange meetings, ordinary network cameras are sufficient.
At present, with the development of our country's network technology and the continuous expansion of bandwidth, more and more work has benefited from it. If a few years ago, web conferencing was still elusive for most people. However, with the improvement of the current network environment, and the improvement of dedicated video conferencing camera technology. Web conferencing is gradually entering a new era. Through the combination with new technologies, network cameras have created a practical effect that is not inferior to physical meetings.