Information handling system camera with reflection management
AssigneeDell Products L.P.
InventorsChih Hao Kao, Shohrab Sheikh, Yi Hsien Lin
Life of this patent
Estimating the term…
Abstract
An information handling system camera selectively activates a polarizer to polarize captured visible images so that display panel reflections are canceled from the captured visual images. The camera polarizer may be configured to polarize at an angle normal to polarized illumination from the display panel, such as when the camera integrates in a common housing with the display panel. Alternatively, the orientation of the camera retarder may rotate to find an optical orientation for cancellation of display visual image reflections.
Claims20
An information handling system comprising:
- a housing;
- a processor disposed in the housing and operable to execute instructions that process information;
- a memory disposed in the housing and interfaced with the processor, the memory operable to store the instructions and information;
- a display interfaced with the processor and operable to present the information as visual images with light polarized at a first orientation;
- and
- a camera having a lens, a processing resource and a non-transitory memory, the camera interfaced with the processor and operable to capture visual images, the lens having a camera polarizer oriented normal the first orientation and activated to filter reflections by polarizing light normal to polarization of reflections of the visual images presented at the display and reflected from surfaces facing the display to the camera and captured in visual images of the camera.
A method for capturing visual images with a camera, the method comprising:
- presenting information as visual images at display at a presentation axis with light of the display polarized at a first orientation;
- capturing visual images with a camera along the presentation axis;
- detecting a reflection of the visual images presented by the display in the visual images captured by the camera;
- and
- in response to the detecting, activating a polarizer to filter the reflections by polarizing light normal to the reflection's polarization of the first orientation at the camera to cancel the reflection.
A camera comprising:
- a lens;
- a processing resource;
- a polarizer aligned with the lens;
- and
- a non-transitory memory interfaced with the processing resource and storing instructions that when executed on the processing resource cause:
- capture of visual images from light passing through the lens;
- detection of an end user wearing eyeglasses in the visual images;
- and
- activation of a polarizer associated with the lens to cancel reflections from the eyeglasses by filtering the reflections by polarizing light normal to the reflection's polarization.
Dependencies are inferred from the claim text.