Fluorescence observation device

Abstract

The present invention provides a fluorescence observation device (1), comprising: a fluorescence image generation unit (62) that generates a fluorescence image (G2) of an observation object (X); and an extraction unit (63) that extracts the fluorescence image (G2) A position of a high-brightness area having a luminance value equal to or greater than a predetermined threshold; a storage unit (64) storing the position of the high-brightness area; a detection unit (65) detecting a physical quantity that may cause a characteristic change of the high-brightness area from the extraction unit (63) A change amount from the moment when the position of the high-brightness area is extracted; a reliability calculation unit (65) that calculates reliability of a characteristic of the high-brightness area based on the detected change amount; and a display image generation unit (66) to generate a display image ( G3 ) in which a display mode corresponding to the reliability calculated by the reliability calculation unit ( 65 ) is assigned to the position of the high-brightness area stored in the storage unit ( 64 ).

Description

technical field [0001] The present invention relates to a fluorescence observation device. Background technique [0002] Conventionally, a fluorescence observation apparatus has been known that irradiates a living body with excitation light, generates fluorescence from a lesion included in the living body, images the fluorescence, and observes the lesion as a high-brightness region in the acquired fluorescence image (for example, refer to the patent Reference 1). [0003] [Patent Document 1] Japanese Patent No. 3771985 [0004] However, in the case of Patent Document 1, when the fluorescence is faded due to continuous irradiation of excitation light, the brightness of the high-brightness region in the fluorescence image decreases. At this time, the user may not be able to correctly recognize whether the luminance value of the high-luminance area is decreased due to fading or decreased due to the properties of the tissue in the object portion. [0005] Furthermore, for exa...

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Problems solved by technology

[0006] In this way, when the fluorescence observation device of Patent Document 1 is used, the characteristics of the high-brightness region, such as the brightness value or position that changes with the passage of time in the image, may differ from the characteristics of the original high-brightness region.

Furthermore, when the reliability of the characteristics of the high-brightness area displayed in the current image decreases, the user cannot recognize the decrease in reliability, so there is a problem that the original characteristics of the high-brightness area cannot be properly interpreted.

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