DETECTION OF WHEN A CAPSULE CAMERA ENTERS INTO OR GOES OUT OF A HUMAN BODY AND ASSOCIATED OPERATIONS
First Claim
1. A capsule camera, comprising:
- an illumination system providing light to illuminate a field of view of the capsule camera;
a sensor array for taking an image by capturing the light from the illumination system reflected from the field of view;
an image processing unit processing the images from the sensor array for subsequent review; and
a clock generation module providing one or more clock signals to operate the image processing unit; and
a control unit controlling a frequency of operation of the clock signals in response to a control signal derived from an output signal of a sensor.
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Abstract
A method for detecting a capsule camera entering into or exiting the GI tract, includes (a) taking a first test image under the condition that an illumination system of the capsule camera is disabled; (b) taking a second test image under the same condition as the first test image; (c) comparing selected corresponding pixel values of the first test image and the second test image to determine if a significant change in pixel values has occurred; and (d) upon detecting the significant change in pixel values, determining if the capsule camera has entered or exited the GI tract, and performing operations appropriate to follow such determination.
25 Citations
10 Claims
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1. A capsule camera, comprising:
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an illumination system providing light to illuminate a field of view of the capsule camera; a sensor array for taking an image by capturing the light from the illumination system reflected from the field of view; an image processing unit processing the images from the sensor array for subsequent review; and a clock generation module providing one or more clock signals to operate the image processing unit; and a control unit controlling a frequency of operation of the clock signals in response to a control signal derived from an output signal of a sensor. - View Dependent Claims (2, 3, 4, 5)
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6. In a capsule camera, a method for power saving, comprising:
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providing an illumination system that provides light to illuminate a field of view of the capsule camera; providing a sensor array that takes an image by capturing the light from the illumination system reflected from the field of view; providing an image processing unit that processes the images from the sensor array for subsequent review; and providing a clock generation module that provides one or more clock signals to operate the image processing unit; and controlling a frequency of operation of the clock signals in response to a control signal derived from an output signal of a sensor. - View Dependent Claims (7, 8, 10)
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9. A method as in claim 46, wherein the secondary sensor comprises a thermometer.
Specification