The video conferencing camera is a high-tech office equipment that uses the Internet to hold remote project meetings, remote training, business communication, video recruitment, and personnel education.
The digital zoom is a change in the vertical direction of the photosensitive device. When the image captured by the CCD or CMOS chip is enlarged or reduced by the internal program, the complex matrix obtains adjacent pixels and magnifies the image by a method similar to cell regeneration (or Interpolation), resulting in a digital zoom. The greater the degree of interpolation, the larger the digital zoom. And give people a zoom effect. The smaller the area on the photosensitive device, the visually let the user see only the part of the scene. However, since the focal length does not change, the image quality is poor relative to the normal case. Summary: With the digital zoom video conferencing camera, the scene is magnified, but its clarity will be reduced to some extent. The optical zoom video conference camera can support the image main body to increase the number of pixels after imaging, so that the main body not only becomes larger, but also relatively clearer. Larger zoom ratios are more suitable for telephoto shooting. Optical zoom is the same as traditional camera design, depending on the focal length of the lens, so the resolution and quality will not change. Optical zoom is produced by changes in the position of the lens, object, and focus. When the image plane moves in the horizontal direction, the angle of view and the focal length change, and the farther scene becomes clearer, making people feel like the object is moving forward. Summary: With optical zoom, the subject is magnified, but its sharpness does not lose the image quality. Digital zoom or optical zoom, in fact, have their own advantages and disadvantages, can be determined according to their actual use
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