Fluorescence image display apparatus
First Claim
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1. A fluorescence image display apparatus comprising:
- a fluorescence image obtaining means for irradiating a target subject with an excitation light and obtaining two fluorescence image data, each formed of fluorescent light of a mutually different wavelength band, based on the fluorescent light intensity emitted from the target subject upon the irradiation thereof by the excitation light, a reflectance image obtaining means for irradiating a target subject with a reference light and obtaining a reflectance image data, based on the intensity of the reference light reflected from the target subject upon the irradiation thereof by the reference light, a gain computing means for computing, based on the statistical quantity of said reflectance image data, a gain that said two fluorescence image data are to be multiplied by, a multiplying means for multiplying said two fluorescence image data by said gain to obtain two multiplied fluorescence image data, an image forming means for forming, based on said two multiplied fluorescence image data, a pseudo color image data representing a pseudo color image reflecting the tissue state of the target subject, and an image display means for displaying said pseudo color image.
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Abstract
A fluorescence image display apparatus is provided; wherein, when a pseudo color image representing the tissue state of a target subject is obtained, based on a fluorescence image emitted from the target subject upon the irradiation thereof by an excitation light, the tissue state can be recognized regardless of the intensity of the fluorescent light. Based upon the statistical quantity of a wide band fluorescence image computed by a statistical quantity computing means, a gain that the wide band and narrow band fluorescence image data are to be multiplied by is computed by a gain computing means. A gain multiplying means multiplies the wide band and narrow band fluorescence image data by the gain, whereby a green gradation is assigned to the wide band fluorescence image and a red gradation is assigned to the narrow band fluorescence image, and a composite image data is obtained by an image composing means.
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Citations
12 Claims
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1. A fluorescence image display apparatus comprising:
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a fluorescence image obtaining means for irradiating a target subject with an excitation light and obtaining two fluorescence image data, each formed of fluorescent light of a mutually different wavelength band, based on the fluorescent light intensity emitted from the target subject upon the irradiation thereof by the excitation light, a reflectance image obtaining means for irradiating a target subject with a reference light and obtaining a reflectance image data, based on the intensity of the reference light reflected from the target subject upon the irradiation thereof by the reference light, a gain computing means for computing, based on the statistical quantity of said reflectance image data, a gain that said two fluorescence image data are to be multiplied by, a multiplying means for multiplying said two fluorescence image data by said gain to obtain two multiplied fluorescence image data, an image forming means for forming, based on said two multiplied fluorescence image data, a pseudo color image data representing a pseudo color image reflecting the tissue state of the target subject, and an image display means for displaying said pseudo color image. - View Dependent Claims (2, 3, 7, 8, 9, 10, 11, 12)
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4. A fluorescence image display apparatus comprising:
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a fluorescence image obtaining means for irradiating a target subject with an excitation light and obtaining two fluorescence image data, each formed of fluorescent light of a mutually different wavelength band, based on the fluorescent light intensity emitted from the target subject upon the irradiation thereof by the excitation light, a reflectance image obtaining means for irradiating a target subject with a reference light and obtaining a reflectance image data, based on the intensity of the reference light reflected from the target subject upon the irradiation thereof by the reference light, a gain computing means for computing, based on the statistical quantity of said reflectance image data, a gain that said two fluorescence image data are to be multiplied by, a multiplying means for multiplying said two fluorescence image data and the reflectance image data by said gain to obtain two multiplied fluorescence image data and a multiplied reflectance data, a difference computing means for computing the difference data between the multiplied reflectance image data and either of the two multiplied fluorescence image data, an image forming means for forming, based on said difference data and the multiplied fluorescence image data that was not used in the computation of said difference data, a pseudo color image data representing a pseudo color image reflecting the tissue state of the target subject, and an image display means for displaying said pseudo color image. - View Dependent Claims (5, 6)
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Specification
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Current AssigneeFujifilm Corporation (Fujifilm Holdings Corporation)
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Original AssigneeFuji Photo Film Co Limited (Fujifilm Holdings Corporation)
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InventorsSendai, Tomonari
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Granted Patent
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Time in Patent OfficeDays
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Field of Search
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US Class Current600/476
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CPC Class CodesA61B 1/00186 with imaging filtersA61B 1/043 for fluorescence imagingA61B 1/045 Control thereofA61B 1/0638 providing two or more wavel...
