Lesion size measurement method and system of fluorescence endoscope and computer equipment

Abstract

The invention discloses a lesion size measurement method and system of a fluorescence endoscope and computer equipment. The method comprises the following steps: acquiring a fluorescence image and a visible light image of a diagnosis tissue, and determining a first lesion size on the fluorescence image according to the fluorescence image; performing pixel alignment on the fluorescence image and the visible light image and performing image fusion, and determining a second lesion size on the visible light image according to the first lesion size; determining a third lesion size on a physical imaging plane according to the second lesion size and a coordinate transformation matrix coefficient, and determining imaging distance according to a function relationship among fluorescence brightness,excitation light intensity and the imaging distance of the fluorescence endoscope; and determining the actual lesion size according to the third lesion size and the imaging distance, thereby solving the problem that the applied fluorescent endoscope cannot quantitatively measure the actual lesion size.

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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