Method for establishing object and image correlation factor for endoscope measurement and applications thereof in endoscope measurement

Abstract

The invention provides a method for establishing an object and image correlation factor for endoscope measurement and applications thereof in endoscope measurement. The method comprises the following steps: firstly giving at least one plane reference object, wherein the reference object comprises at least one straight line which passes through the center and is equal in distance between two ends; measuring one straight line as the reference line, wherein the length is recoded as 1; aligning an endoscope lens with the center of the reference object; completely displaying an distorted image corresponding to the reference object on a computer screen connected with the endoscope; measuring the distance between the endoscope lens and the plane of the reference object perpendicular to the endoscope lens, and recording the distance as h; measuring the length of a distorted central line in the image which is displayed on the computer screen and which corresponds to the reference line of the reference object, and recording the length as s; calculating an object and image correlation factor f; measuring the size of the nidus displayed on the computer screen using the endoscope; and calculating out the actual size of the nidus directly according to the relationship of the object and the image indicated by the object and image correlation factor. The method is strict in principle, convenient in operation and accurate in result and has a strong application value and potential commercial value.

Description

technical field [0001] The invention relates to the field of endoscopic measurement, in particular to the establishment and application of a measurement parameter capable of eliminating barrel distortion in endoscopic measurement, in particular to a method for establishing an object-image correlation factor for endoscopic measurement and its Applications in endoscopic measurements. Background technique [0002] With the development of medical technology, endoscopic technology has become the main technology for fine inspection and minimally invasive surgery. The endoscope sent into the human cavity displays the image on the computer screen through a micro-camera, so that inspection and treatment can be performed intuitively. Image processing technology can also be used to obtain images of diseased tissues or lesions. It can not only obtain the morphology of tissues and organs Diagnostic information, and can also measure various physiological functions of tissues and organs. ...

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to propose a method with strict theory, convenient operation, accurate results, and strong application value and potential commercial value in view of the problems of large measurement error, cumbersome method and high cost in the existing endoscopic measurement method. The establishment method of object-image correlation factor for endoscopic measurement and its application in endoscopic measurement

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