Intestinal tract endoscope retreating speed smoothing method

A smooth and fast technology, applied in the field of medical technology assistance, can solve problems such as colonoscope withdrawal speed oscillation, doctor's nervousness, and inability to provide stable guidance for doctors, and achieve the effect of improving operation experience, reducing shock, and improving quality

Pending Publication Date: 2021-10-08
WUHAN ENDOANGEL MEDICAL TECH CO LTD
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  • Abstract
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Problems solved by technology

[0004] The technical problem to be solved by the present invention is: during the implementation of colonoscopy, when encountering the influence of disturbing factors such as flushing and sticking to the wall, the speed of retracting the colonoscope will fluctuate violently, which cannot accurately give the doctor stability. Instructs and can make physicians nervous

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  • Intestinal tract endoscope retreating speed smoothing method
  • Intestinal tract endoscope retreating speed smoothing method
  • Intestinal tract endoscope retreating speed smoothing method

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Embodiment Construction

[0042] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0043] Such as figure 1 As shown, the present invention provides a technical solution: a method for smoothing the speed of intestinal mirror retraction, comprising the steps of:

[0044] S1. Obtain the real-time video of the colonoscope through the endoscope inspection equipment. After the endoscope reaches the ileocecal part of the terminal intestine, start to monitor the withdrawal speed of the intestinal mirror, and decode the video into pictures (8 frames ...

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Abstract

The invention relates to the technical field of medical technology assistance, in particular to an intestinal tract endoscope retreating speed smoothing method, which comprises the following steps: performing frame collection on an intestinal tract real-time endoscope retreating video to obtain an enteroscope picture; calculating a Hash fingerprint of the enteroscopy picture; calculating the Hamming distance between a current frame and the previous n frames of enteroscopy pictures according to the Hash fingerprint of the current frame and the previous n frames of enteroscopy pictures; performing weighted averaging on a Hamming distance vector; mapping the weighted average Hamming distance into a speed value as the speed value of the current enteroscope picture; taking the speed values of the latest X enteroscopy pictures as a sequence, and smoothing the sequence by using Savitzky-Golay filtering to obtain a smoothed speed value sequence; and taking out the last value of the smoothed speed sequence, and carrying out truncation processing to obtain the endoscope retreating speed value of the smoothed current image. According to the method, oscillation is eliminated through the smoothing method, the robustness of the endoscope retreating speed and the operation experience of doctors are improved, and the enteroscopy quality is guaranteed.

Description

technical field [0001] The invention relates to the field of medical technology assistance technology, in particular to a method for smoothing the speed of intestinal mirror retraction. Background technique [0002] The morbidity and mortality of colorectal cancer ranks second among all cancers, causing approximately 880,000 deaths each year. Colonoscopy can effectively prevent the occurrence of colorectal cancer by detecting and removing precancerous lesions such as colorectal adenomas. However, the quality of colonoscopies varies among endoscopists, resulting in the missed diagnosis of about 22% of adenomas. One of the main reasons for the missed diagnosis of adenoma is the rapid retraction of the colonoscope, which leads to insufficient observation of the mucosa. Studies have shown that with the prolongation of withdrawal time, the polyp detection rate, adenoma detection rate and the average number of polyps found per subject increased significantly in colonoscopy patie...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06T7/00G06T7/90G06T5/00G06T3/40G06F17/11
CPCG06T7/0012G06T5/002G06T7/90G06T3/4023G06F17/11G06T2207/30028
Inventor 邢达奇胡珊刘奇为于天成
Owner WUHAN ENDOANGEL MEDICAL TECH CO LTD
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