Apparatus and Method for Light Control in an in-Vivo Imaging Device
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Abstract
A device and method for operating an in vivo imaging device (10A) wherein the illumination produced by the device may be varied in intensity and/or duration, and/or the gain level or other parameters may be varied, according to, for example, the amount of illumination produced by the device which is reflected back to the device. In addition, a method is provided for detecting problematic pixels in an imaging device. This method may define and exclude non-functional pixels, based on for example an initial short exposure that enables a threshold saturation level to be reached only for problematic pixels. Moreover, a method is described for determining when an in vivo device enters the body, for example by calculating the progress of a dark frame, based on the light saturation threshold of the dark frame.
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Citations
100 Claims
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1-80. -80. (canceled)
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81. An in vivo imaging device comprising:
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a light source;
an imager; and
a controller, wherein the controller is to, during an imaging period, operate the light source, record the amount of light reflected to the imaging device, and control the image gain level of the imager. - View Dependent Claims (82, 83, 84, 85)
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86. An in vivo imaging device comprising:
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a light source;
an imager; and
a controller, wherein the controller is configured to detect problematic pixels in said imager, and define said problematic pixels as non-functional. - View Dependent Claims (87, 88, 89)
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90. A method for operating an in vivo imaging device including at least one light source, the method comprising:
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during an imaging period, operating at least one light source;
at a sampling instance, recording the amount of light reflected to at least one light measuring element; and
comparing an amount of light recorded at least one sampling instance within said imaging period to a determined light saturation threshold; and
controlling the imaging device'"'"'s gain factor in relation to the difference between said amount of light recorded and said light saturation threshold. - View Dependent Claims (91)
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92. An in vivo imaging device comprising:
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a light source;
an imager; and
a controller, wherein the controller is adapted to operate the light source to provide dark flames at determined flame intervals and record the amount of light reflected to the imager during said dark frame. - View Dependent Claims (93, 94, 95, 96)
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97. A method for changing the operation mode of an in vivo device, the method comprising:
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measuring at least one environment parameter in at least one environment surrounding the device;
when an environmental change is determined, changing the operating mode of the device. - View Dependent Claims (98, 99)
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100. A method for changing the operation mode of an in vivo device, the method comprising:
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measuring at least one environment parameter in at least one environment surrounding the device, using at least one environment measuring tool; and
when an environmental change is determined, changing the operating mode of the device.
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Specification