Method of focusing a camera
First Claim
1. A method of focusing a camera with a movable field of view, the camera monitoring a scene, the method comprising:
- obtaining a current field of view setting corresponding to a current field of view of the camera,retrieving, based on the obtained current field of view setting, focusing data pertaining to the focusing method that was previously used to focus the camera for a previous field of view, at least partly overlapping the obtained current field of view, by accessing a focusing assisting database, comprising a plurality of camera focusing entries, wherein each camera focusing entry comprises a respective previous field of view setting, corresponding to a respective previous field of view, and thereto associated focusing data, pertaining to the focusing method that was previously used to focus the camera for the respective previous field of view,focusing the camera using a focusing method chosen among a plurality of focusing methods, wherein the choice of focusing method is based on the retrieved focusing data,wherein each camera focusing entry further comprises a length of time for the respective focusing method to find focus, wherein the choice of focusing method is based on the retrieved focusing data and the length of time for the respective focusing method to find focus.
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Abstract
A method of focusing a camera with a movable field of view includes obtaining a current field of view setting corresponding to a current field of view of the camera, retrieving, based on the obtained current field of view setting, focusing data pertaining to the focusing method that was previously used to focus the camera for a previous field of view, at least partly overlapping the obtained current field of view, by accessing a focusing assisting database comprising a plurality of camera focusing entries. wherein each camera focusing entry includes a respective previous field of view setting, corresponding to a respective previous field of view and thereto associated focusing data pertaining to the focusing method that was previously used to focus the camera for the respective previous field of view.
11 Citations
14 Claims
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1. A method of focusing a camera with a movable field of view, the camera monitoring a scene, the method comprising:
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obtaining a current field of view setting corresponding to a current field of view of the camera, retrieving, based on the obtained current field of view setting, focusing data pertaining to the focusing method that was previously used to focus the camera for a previous field of view, at least partly overlapping the obtained current field of view, by accessing a focusing assisting database, comprising a plurality of camera focusing entries, wherein each camera focusing entry comprises a respective previous field of view setting, corresponding to a respective previous field of view, and thereto associated focusing data, pertaining to the focusing method that was previously used to focus the camera for the respective previous field of view, focusing the camera using a focusing method chosen among a plurality of focusing methods, wherein the choice of focusing method is based on the retrieved focusing data, wherein each camera focusing entry further comprises a length of time for the respective focusing method to find focus, wherein the choice of focusing method is based on the retrieved focusing data and the length of time for the respective focusing method to find focus. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14)
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Specification