Electronic endoscope apparatus capable of displaying hemoglobin concentration on color image
First Claim
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1. An electronic endoscope apparatus comprising:
- light source means for separately producing colored light having a predetermined light-wave band and monochromatic light having a plurality of different wavelengths;
scope means for producing an image single of a biological body under examination while the biological body is irradiated by one of said colored light and monochromatic light;
color signal processing means for processing said image signal derived from scope means so as to obtain a color television signal;
means for converting the brightness of the color television signal acquired while said biological body is irradiated by one of said monochromatic light wave lengths to obtain a brightness-converted image signal;
a plurality of memories, one associated with each wavelength of said monochromatic light and a color image memory for storing the calculated functional information; and
,calculating means for calculating a plurality of brightness-converted image signals to obtain a functional-information signal representative of functional information on said biological body.
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Abstract
In an electronic endoscope apparatus, there are provided a brightness converter for converting brightness of a color image signal of a biological body under examination while the biological body is irradiated by monochromatic light; a plurality of image memories for storing a plurality of brightness-converted image signals; and a calculating circuit for calculating the plurality of brightness-converted image signals to obtain a concentration of hemoglobin of the biological body and an oxygen saturation of hemiglobin thereof. Then, the concentration of hemoglobin and oxygen saturation of the biological body are displayed as a color image.
109 Citations
24 Claims
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1. An electronic endoscope apparatus comprising:
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light source means for separately producing colored light having a predetermined light-wave band and monochromatic light having a plurality of different wavelengths; scope means for producing an image single of a biological body under examination while the biological body is irradiated by one of said colored light and monochromatic light; color signal processing means for processing said image signal derived from scope means so as to obtain a color television signal; means for converting the brightness of the color television signal acquired while said biological body is irradiated by one of said monochromatic light wave lengths to obtain a brightness-converted image signal; a plurality of memories, one associated with each wavelength of said monochromatic light and a color image memory for storing the calculated functional information; and
,calculating means for calculating a plurality of brightness-converted image signals to obtain a functional-information signal representative of functional information on said biological body. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
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12. An electronic endoscope apparatus comprising:
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light source means for separately producing colored light having a predetermined light-wave band and a plurality of monochromatic lights having different wavelengths; scope means for producing an image signal of a biological body under examination while the biological body is irradiated by one of said colored lights and monochromatic light of one wavelength; color signal processing means for processing said image signal derived from scope means so as to obtain a color television signal; means for converting the brightness of the color television signal acquired while said biological body is irradiated by one of said monochromatic lights to obtain a brightness-converted image signal; calculating means for calculating a plurality of brightness-converted image signals to obtain a functional-information signal representative of functional information on said biological body;
the information provided by the functional image being allocated to one of hue, luminance or color saturation; and
,color displaying means for allocating color displaying elements to the functional information of said functional-information signal. - View Dependent Claims (13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24)
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Specification