Full-automatic detection method for velopharyngeal closure under nasopharyngoscopy based on image processing

An image processing and detection method technology, applied in the field of image processing, can solve problems such as large error in the closure of the velopharyngeal orifice, and achieve the effects of high innovation and objective and accurate detection results.

Inactive Publication Date: 2018-09-28
SICHUAN UNIV
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Problems solved by technology

[0007] The present invention aims at the above-mentioned technical problems existing in the prior art, and provides an image processing-based automatic detection method for velopharyngeal closure under nasopharyngoscope. The method of image processing can automatically segment and extract the velopharyngeal image under nasopharyngeal endoscope, so as to realize the accurate digital calculation and evaluation of velopharyngeal closure

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  • Full-automatic detection method for velopharyngeal closure under nasopharyngoscopy based on image processing
  • Full-automatic detection method for velopharyngeal closure under nasopharyngoscopy based on image processing
  • Full-automatic detection method for velopharyngeal closure under nasopharyngoscopy based on image processing

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[0060] In order to make those skilled in the art better understand the technical solution of the present invention, the technical solution of the present invention is clearly and completely described below in conjunction with the accompanying drawings of the present invention. Based on the embodiments in this application, those of ordinary skill in the art will Other similar embodiments obtained without creative work shall all fall within the scope of protection of this application.

[0061] Such as figure 1 The specific steps of the automatic detection method for velopharyngeal closure under nasopharyngoscope provided by the present invention are as follows.

[0062] (1) To obtain the target image, insert the nasopharyngeal endoscopic tube through the middle meatus in the actual operation, and then fix it after reaching the level of the velopharyngeal orifice. Guide the examinee to pronounce. The video of the entire inspection process is collected and recorded by the endosc...

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Abstract

The invention discloses a full-automatic detection method for velopharyngeal closure under nasopharyngoscopy based on image processing. The detection method comprises the steps of acquiring a target image, preprocessing an image frame, removing text information and black regions in the image, calculating black cavity position of the image, calculating the area ratio of the black cavity area, making a preliminary judgment on the boundary state of the velopharyngeal opening, calculating the initial outline of the velopharyngeal opening based on a level set while determining the velopharyngeal opening is in an opening state, correcting the upper, lower, left and right boundaries to obtain a corresponding velopharyngeal opening boundary; and after the velopharyngeal opening boundary is segmented, calculating the velopharyngeal opening area and calculating the velopharyngeal closure. Compared with the prior art, the detection result is objective and accurate, a high degree of automatic measurement is realized, reliable reference data are provided for the digital evaluation of the velopharyngeal closure function clinically, the development needs for precision medical treatment are met, the accuracy of the extraction of the target area is improved, and the algorithm overhead is reduced.

Description

technical field [0001] The invention relates to the field of image processing, in particular to a fully automatic detection method for velopharyngeal closure under nasopharyngoscope based on image processing. Background technique [0002] Evaluation of velopharyngeal closure function is the core of cleft palate surgery evaluation. The treatment of cleft palate is different from that of cleft lip. The judging standard is not purely based on morphological recovery, but on the function of velopharyngeal closure under the reconstructed palate shape. Therefore, clinically, the degree of velopharyngeal closure is used as the key indicator for effect evaluation. [0003] According to the recommendations of the American Cranio-Maxillofacial Association (ACPA), speech and velopharyngeal function evaluations are required before cleft palate surgery, and doctors judge whether surgery is necessary based on the evaluation results combined with professional knowledge and clinical experien...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06T7/00G06T7/62G06T7/12G06T7/13
CPCG06T7/0012G06T2207/10016G06T2207/30004G06T7/12G06T7/13G06T7/62
Inventor 何凌黄毅鹏王熙月尹恒
Owner SICHUAN UNIV
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