Hemispheric Technology Explained


The primary components of the hemispheric camera include a fish-eye lens, a high resolution image sensor and image correction software integrated into the camera.  Utilising an ultra wide angle fish-eye lens, the camera captures a 180° hemispheric image of the room and projects it onto a high resolution image sensor.

When ceiling mounted, the image area of the hemispheric camera covers the entire room.  The image in the hemisphere is convex, particularly near the image borders, however these image sections are corrected via the integrated distortion correction software allowing a view of the scene from the usual perspective.  The virtual PTZ feature allows the viewer to enlarge or move image sections within the hemisphere, just like a PTZ camera yet, with Mobotix this is achieved with no moving parts.

Handle Several Image Sections At Once

One or more image sections can be corrected for perspective in the hemispheric view, allowing you to monitor and record several different areas of a room at the same time, something that a mechanical PTZ camera is not capable of doing.

Discreet and Low Maintenance

Hemispheric cameras are discreet as they manage their task with only one lens, which is generally focused on the entire room and not a specific object.  With no moving parts, Mobotix hemispheric cameras are low maintenance and are silent when utilising the virtual PTZ function to focus on a specific image area.

Fewer Cameras

The perspective of the hemispheric image can also be transformed into an ultra-wide angle panoramic view spanning 180° if the camera is mounted on a wall, providing a wall-to-wall view of the room without any blind spots. It offers a substantially better view of the scene, compared to other cameras, it also results in the need for fewer cameras overall. When ceiling mounted, one camera can also capture an entire room by two opposite panoramic views.

Hemispheric Technology Videos (Courtesy of MxInstaller)