Endoscope target object size calculating method and analysis system

Abstract

The invention provides an endoscope target object size calculating method and an analysis system. The method includes the following steps of establishing the distance-pixel unit size mathematical relation model of the unit pixel size of an endoscope in different distances; collecting the distance d between the endoscope and a target object; taking an image of the target object through the endoscope, and correcting the distortion of the image; obtaining the number of pixels of the target object in the corrected image, detecting the size of the corresponding unit pixels in the distance of d through the distance-pixel unit size mathematical relation model, and calculating the size of the target object according to the calculating method of N*Sd, wherein N represents the number of the pixels of the target object, and the Sd represents the actual area size corresponding to the single pixel in the distance of d in the distance-pixel unit size mathematical relation model. The method is high in calculating speed and can rapidly and accurately calculates the size of the target object of the endoscope.

Description

technical field [0001] The invention relates to the field of medical machinery, in particular to a method for calculating the size of an endoscope target object and an analysis system. Background technique [0002] Electronic endoscope is one of the indispensable instruments in modern medical examination. It is directly used to observe the tissue morphology of internal organs of the human body, which is of great significance for the early diagnosis of cancer. [0003] With the continuous development of technology and the continuous expansion of the application scenarios of capsule endoscopy, its inspection scope has covered the entire digestive tract. Because of its painless, comfortable and convenient inspection process, it is favored by the majority of patients. [0004] However, since the electronic endoscope camera lens is a pan-focus optical system, the size of the image displayed on the image display is also different with the distance between the target of the same s...

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Problems solved by technology

[0004] However, since the electronic endoscope camera lens is a pan-focus optical system, the size of the image displayed on the image display is also different with the distance between the target of the same size and the objective lens. Therefore, it cannot be quantitatively measured only by the size of the image on the display. The size of the target depends on the doctor's visual estimation. Since the distance between the objective lens and the target is difficult to quantify, it will introduce subjective errors and affect the doctor's judgment.

[0005] In order to solve the problem of quantitative measurement, the Chinese invention patent application with application number 201310618279.5 proposes a method and device for quantitative measurement of lesion size in electronic endoscope. The result accuracy is low

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