A fisheye camera is a camera with a fisheye lens that is a very short focal length lens with a viewing angle close to or equal to 180° and a 16mm or shorter focal length lens. It is an extreme wide-angle lens, "Fisheye" is its common name.

In order to make the lens to the maximum photographic perspective, the front lens of this photographic lens diameter and parabolic projection to the front of the camera, and the fish's eyes are quite similar, "Fisheye" hence the name. The fisheye lens belongs to a special type of lens in an ultra-wide-angle lens. Its angle of view seeks to meet or exceed the range that the human eye can see. Therefore, the fisheye lens is quite different from the real-world scene in people's eyes because the scene we see in real life has a regular fixed shape, and the effect of the picture produced by the fisheye lens goes beyond this category.

Fisheye Lens Principle:

As we all know, the shorter the focal length, the larger the perspective, the more deformation due to the optical principle. In order to achieve a 180-degree super-wide angle, the designer of the fisheye lens has to sacrifice that a reasonable presence of such deformation (barrel distortion) is allowed. The result is that, except for the scene at the center of the picture, the other things that should have been horizontal or vertical have changed accordingly. It is also this strong visual effect that offers imaginative and courageous photographers the opportunity to demonstrate their personal creativity.

Taichen VMS Platform Supports Fisheye Equipment:

The support for fisheye of Taichen Software is based on the built-in independent research and development of dewrap algorithm, so it has nothing to do with the front-end specific fisheye device and does not rely on the SDK provided by the fisheye manufacturer, so it can be integrated freely in the video surveillance platform software, Perfect for realizing free virtual channels, used efficiently in real-time monitoring, local and remote perspective memory playback, and even freely displayed on the digital matrix splicing video wall.

1. Through the Taichen Software, a single fisheye image virtual out of 8 sub-video channel areas.

2. Use the unique algorithm of Taichen and CUDA hardware acceleration, following the mouse cursor, preview and playback multi-directional detail image without increasing system resource consumption.

3. Due to the extreme wide-angle range of fisheye to meet or exceed the normal range of human eyes can see, resulting in fisheye video distortion, can not meet the normal visual requirements of the human eye; To eliminate this distortion, Taichen Software use a unique image correction algorithm to eliminate distortion caused by ultra-wide-angle surface video.

4. More advantages of the fisheye video: saving hardware, networking, and investment costs.