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Dr Libor Spacek
Omnidirectional Vision
Introduction to Omnidirectional Vision
Omnidirectional Vision involves capture and automatic interpretation of images usually depicting full 360 degrees (horizontal panorama) view of the surroundings. Sometimes the field of view band can be aligned vertically, or in any other plane, usually by means of deploying a circularly symmetrical mirror aligned in the required direction. Hemispherical fields of view (360 degrees by 180 degrees) are also used, usually by deploying a fish-eye lens. Finally, separate views can sometimes be combined, thus forming the ideal full spherical projection.
      Omnidirectional vision offers a number of significant benefits. Specifically, it is much easier to deal with the rotation of the camera (robot), as this will not make objects disappear from view but only change their image positions.
      Additionally, as we argue in 'A Catadioptric Sensor with Multiple Viewpoints' (see the publications page), omnidirectional vision lends itself to a particularly simple stereo epipolar geometry and consequently to instantaneous range finding that is not limited by the narrow field of view.
      Applications include all situations where large three dimensional space needs to be surveyed, such as navigation and guidance of (autonomous) vehicles, robotics, tracking and motion detection, simultaneous location and mapping, site modelling, security, and virtual reality.

logo img left portrait logo img right portrait Designed and maintained by Dr Libor Spacek. Updated Friday, 23-Mar-2007 12:13:46 GMT
publications,  biography, email: spacl (@essex.ac.uk).
Some of my courses: Computer Vision,  Sensor Signal Processing,  Vision for Robotics,  Robot Programming.