System and method to detect a transition in an image stream
First Claim
Patent Images
1. A method for detecting a transition in an image stream captured within a body lumen by an autonomous in viva device inserted into said body lumen, said device comprising an imager and designed to pass through said body lumen 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 said autonomous device through said body lumen, wherein the first image and the second image correspond to first and second chronological points in time;
computing, using a computer, values of a structure related parameter of the first image and of the second image, wherein the structure related parameter is the presence or absence of a villi structure detected using image based edge detection algorithms; and
identifying a transition in the values of at least the structure related parameter between the first image and the second image.
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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.
119 Citations
23 Claims
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1. A method for detecting a transition in an image stream captured within a body lumen by an autonomous in viva device inserted into said body lumen, said device comprising an imager and designed to pass through said body lumen and to capture a stream of images thereof, the method comprising:
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receiving a first image and a second image of the image stream captured using said imager during a single pass of said autonomous device through said body lumen, wherein the first image and the second image correspond to first and second chronological points in time; computing, using a computer, values of a structure related parameter of the first image and of the second image, wherein the structure related parameter is the presence or absence of a villi structure detected using image based edge detection algorithms; and identifying a transition in the values of at least the structure related parameter between the first image and the second image. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. A method for detecting a transition in an image stream captured within a body lumen by an autonomous in viva device inserted into said body lumen, said device comprising an imager and designed to pass through said body lumen and to capture a stream of images thereof, the method comprising:
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receiving a first image and a second image of the image stream captured using said imager during a single pass of said autonomous device through said body lumen, wherein the first image and the second image correspond to first and second chronological points in time; computing, using a computer, values of at least one parameter of the first image and of the second image, wherein the at least one parameter includes a structure related parameter defining the presence or absence of a villi structure detected using image based edge detection algorithms; identifying a transition in the values of the at least one parameter between the first image and the second image; and determining a confidence level of the transition. - View Dependent Claims (10, 11, 12, 13, 14, 15, 16)
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17. A system to detect a transition in an image stream captured within the body lumen comprising:
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an autonomous in vivo device comprising an imager to capture the image stream from within the body lumen during a single pass of said autonomous device therethrough, wherein the image stream comprises a first image and a second image that correspond to first and second chronological points in time; a parameter computing unit to detect values of at least a structure related parameter at points corresponding to the first image and to the second image, wherein the structure related parameter is the presence or absence of a villi structure detected using image based edge detection algorithms; and a transition detecting unit to identify a transition in the values of the structure related parameter between the first image and of the second image. - View Dependent Claims (18, 19, 20, 21, 22, 23)
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Specification