System and method to detect a transition in an image stream
AssigneeGiven Imaging Ltd.
InventorsEli Horn, Hagai Krupnik, Ofra Zinaty
Life of this patent
Estimating the term…
Abstract
A system and method may detect a transition in an image stream captured within a body lumen. One or more parameters may be computed at points corresponding to a time scale of the image stream. Transition in the values of the parameters may be identified and may indicate a location along the body lumen. The image stream may be segmented at the transition points identified.
Claims20
A method for segmenting an image stream captured within a gastrointestinal tract by an in vivo device inserted into said gastrointestinal tract, said device comprising an imager and being designed to pass through said gastrointestinal tract and to capture a stream of images thereof, the method comprising:
- receiving a first image and a second image of the image stream captured using said imager during a single pass of the device through the gastrointestinal tract, wherein the first image and the second image correspond to first and second chronological points in a time scale of the image stream, respectively;
- computing, using a computer, average pixel color values of the first image and of the second image;
- detecting, using a computer, a transition between organs of the gastrointestinal tract based on a change in the average pixel color values;
- and
- segmenting the image stream at the points in the time scale of the image stream that correspond to transitions between the organs of the gastrointestinal tract.
A system for segmenting an image stream captured within a gastrointestinal tract comprising:
- an in vivo device comprising an imager to capture the image stream from within the gastrointestinal tract during a single pass of said device through the gastrointestinal tract, wherein the image stream comprises a first image and a second image that correspond to first and second chronological points in a time scale of the image stream, respectively;
- a parameter computing unit to compute average pixel color values of the first image and the second image;
- a transition detecting unit to detect a transition between organs of the gastrointestinal tract by identifying a change in the average pixel color values between the first image and the second image;
- and
- a segmentation unit to segment the image stream at the points in the time scale of the image stream that correspond to transitions between organs of the gastrointestinal tract.
Dependencies are inferred from the claim text.