Endoscope system with adaptive lighting control
AssigneeKARL STORZ Imaging, Inc.
InventorJonathan Bormet
Life of this patent
Estimating the term…
Abstract
The present invention relates to a method for producing adaptive lighting controls for an endoscope with multiple light emitting elements such as distinct light fibers, or distinct distal light emitting diodes (LEDs), etc. The amount of light delivered to the scene can be locally adjusted on a per-light basis to manage the dynamic range of the scene. For example highly reflective metallic tools many benefit from reduced light, while cavities may benefit from increased light projected into the lumen.
Claims20
An endoscope system for capturing a scene, comprising:
- a plurality of lighting elements located at a distal end;
- a camerahead for capturing a first set of one or more images of the scene;
- and
- software and/or hardware comprising at least one process, wherein the at least one process is configured to:
- determine correspondences between a plurality of regions of the first set of one or more images and a first lighting element of the plurality of lighting elements, based at least in part on a signal generated by the first lighting element using one or more non-visible wavelengths;
- determine pixel intensities at the plurality of regions;
- determine a first drive strength for the first lighting element based on the correspondences and the pixel intensities;
- and
- cause the first drive strength to be applied by the first lighting element.
An endoscope system for capturing a scene, comprising:
- a plurality of lighting elements located at a distal end;
- a camerahead for capturing a first set of one or more images of the scene;
- and
- software and/or hardware comprising at least one process, wherein the at least one process is configured to:
- determine correspondences between a plurality of regions of the first set of one or more images and a first lighting element of the plurality of lighting elements, wherein the at least one process is configured to determine the correspondences for the plurality of regions of the scene by at least:
- identify a predetermined pattern;
- determine, from a first image of the first set of one or more images, an actual pattern projected onto the scene by the first lighting element using the one or more non-visible wavelengths;
- and
- determine a second correspondences for the first lighting element based on a comparison of the predetermined pattern and the actual pattern;
- determine pixel intensities at the plurality of regions;
- determine a first drive strength for the first lighting element based on the correspondences and the pixel intensities;
- and
- cause the first drive strength to be applied by the first lighting element.
A method for providing adaptive lighting to a scene, comprising:
- capturing, by a camerahead, a first set of one or more images of the scene that is illuminated by a plurality of lighting elements;
- and
- determining correspondences between a plurality of regions of the scene based on the first set of one or more images and a first lighting element of the plurality of lighting elements based at least in part on a signal generated by the first lighting element using one or more non-visible wavelengths;
- determining pixel intensities at the plurality of regions;
- determining a first drive strength for the first lighting element based on the correspondences and the pixel intensities;
- and
- causing the first drive strength to be applied by the first lighting element.
Dependencies are inferred from the claim text.