The primary components of the hemispheric camera include a fisheye lens, a high-resolution image sensor and image correction software that is integrated into the camera. Using an ultra-wide angle fisheye 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. These image sections are corrected for the viewer by the integrated distortion correction software, allowing a view of the scene from the usual perspective. The virtual PTZ feature allows you 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 extremely discreet because they manage their task with only one lens, which is generally focused on the entire room and not a specific object. MOBOTIX hemispheric cameras are without mechanical moving parts and require low maintenance. In addition, they are silent when panning and focusing on a specific image area.
Less cameras thanks to panoramic views
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.
Keeping objects in view at all times
Using solutions featuring several individual cameras, moving objects will normally jump from one viewing area of a camera to another. This often produces a confusing situation for the viewer because objects may disappear from sight for a moment or even appear twice if the viewing areas overlap. This is not the case with hemispheric panoramic cameras. Objects remain in view at all.
Everything stored in the recording
In contrast to a normal PTZ camera, which is always focused on one section of a room and only records that section, the virtual PTZ also allows you to pan to other areas at a later stage in the recording as the entire room can be recorded as a hemispheric image times and the viewer can always keep good track of objects in the scene.
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