Lesion size measurement method, system and computer equipment for fluorescence endoscopy

Abstract

The invention discloses a method, system and computer equipment for measuring the lesion size of a fluorescent endoscope, which acquires a fluorescent image and a visible light image of a diagnostic tissue, and determines the size of a first lesion on the fluorescent image according to the fluorescent image; In the case of pixel alignment of the fluorescence image and the visible light image and image fusion, the second lesion size on the visible light image is determined according to the first lesion size; the physical imaging is determined according to the second lesion size and the coordinate transformation matrix coefficient. The size of the third lesion on the plane, and the imaging distance is determined according to the functional relationship between the fluorescence brightness of the fluorescence endoscope, the excitation light intensity, and the imaging distance; the actual size of the lesion is determined according to the third lesion size and the imaging distance, thereby solving the problem of The applied fluorescence endoscope cannot quantitatively measure the actual size of the lesion.

Description

technical field [0001] The present application relates to the technical field of fluorescence endoscopy, in particular to a method, system and computer equipment for measuring the size of a focus of a fluorescence endoscope. Background technique [0002] Endoscope is an important tool for examining and treating human internal organs in modern medicine. Fluorescence endoscopy is based on visible light endoscopy, and fluorescent probes such as indocyanine green (ICG) are used to mark diseased cells. It is a technique to obtain images of lesions by using excitation light in other bands such as near-infrared light. But in the related art, because the lesion of the same size has different distances from the objective lens, the size of the image of the lesion displayed on the image display is also different, so the actual size of the lesion cannot be quantitatively obtained only according to the imaging size of the lesion on the monitor. Or during the operation, the doctor usuall...

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Problems solved by technology

[0004] Aiming at the problem in the related art that the fluorescence endoscope cannot quantitatively measure the actual size of the lesion, the present invention provides a method, system and computer equipment for measuring the size of the lesion with the fluorescence endoscope to at least solve the above problems

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