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US 11,298,266 B2Granted
Depth filter for visual prostheses
AssigneeSecond Sight Medical Products, Inc.
InventorsArup Roy, Avraham I. Caspi, Gislin Dagnelie, Greg Seifert, Paul Gibson
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Abstract
The present invention is a depth sensing visual prosthesis. By depth sensing objects within an image, items located at a certain depths from the user can be removed to declutter an image. The resulting image presents only objects within a range of depth from the visual prosthesis user. Depth sensing can be accomplished in various ways including structured light, time of flight, or preferably, a stereo camera pair.
Claims9
A visual prosthesis comprising:
- a camera for producing a visual image;
- a video processor receiving data from the camera and including a digital image processing system that creates a disparity map, detects and digitally removes portions of the visual image that represent information outside of a preset range of depth from the visual prosthesis user based on the disparity map, and producing stimulation signals based on a portion of the visual image found within the range of depths from the visual prosthesis user;
- user controls on the video processor adapted to control depth filtering modes and a band pass filter with adjustable width to control the range of depths visible to the user;
- an implantable neurostimulator configured to stimulate visual neural tissue in accordance to the stimulation signals.
1 more element
Dependencies are inferred from the claim text.