Zero-sample learning method based on data enhancement

A sample learning and data technology, applied in image data processing, informatics, medical informatics, etc., can solve problems that do not meet the novice doctor's learning and cognitive process of diseases, and do not see pictures of diseases, etc., to achieve zero-sample learning The effect of aiding in diagnosing problems

Active Publication Date: 2019-06-21
CENT SOUTH UNIV
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  • Abstract
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  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the current medical image-aided diagnosis has the following problems: most of the medical image-aided diagnosis at the current stage is supervised learning, and a large amount of labeled medical image data needs to be collected to train the model
In this actual scenario, the novice d...

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  • Zero-sample learning method based on data enhancement
  • Zero-sample learning method based on data enhancement
  • Zero-sample learning method based on data enhancement

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Embodiment Construction

[0022] Combining the traditional medical imaging diagnosis process and the characteristics of deep learning technology, the present invention adopts the tensorflow framework and uses data enhancement technology to fuse the characteristic depiction of rare diseases by experts and doctors with the background picture, generate medical image pictures in batches as training samples, and place them in the The deep convolutional neural network model is trained to obtain the medical diagnosis model of the corresponding disease, and finally the diagnosis model is used for real medical image case classification.

[0023] The most important data enhancement part of the present invention is in the doctor's interactive interface module. The doctor interaction interface module includes seven parts: disease background image selection, lesion range selection, lesion outline depiction, lesion center color selection, batch generation of expanded sample sets, training of expanded sample sets, and...

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Abstract

The invention discloses a zero-sample learning method based on data enhancement. The zero-sample learning method comprises the steps of drawing a contour of a focus, performing focus contour processing on the contour according to a morphological operation method, and then filling a color on the focus by means of a continuous gradient color filling method; increasing diversity of the focus with filled colors by means of a matrix linear transforming method, generating a plurality of simulated focus pictures, and combining the simulated focus pictures with a disease background picture by means ofimage fusion technology, and adding a Gaussian white noise to the fused picture for obtaining an expanded sample set; training a VGG classifier by means of the expanded sample set, and training an optimal classifier; and testing a dermatopathy case by means of the optimal classifier. The zero-sample learning method effectively settles a zero-sample learning auxiliary diagnosis problem of a rare disease.

Description

technical field [0001] The invention relates to the field of medical image aided diagnosis, in particular to a zero-sample learning method based on data enhancement. Background technique [0002] At present, medical resources are scarce, professional doctors are in short supply, and the doctor training cycle is long; medical resources are distributed unevenly, large hospitals are overcrowded, and small hospitals are neglected. The application of deep learning in medicine can help medically underdeveloped regions and hospitals to develop intelligent medical diagnostic robots; provide professional and accurate diagnostic assistance, improve the level of medical diagnosis, and reduce the rate of misdiagnosis; reduce the work pressure of doctors and improve the efficiency of medical workers. work efficiency. However, the current medical image-aided diagnosis has the following problems: most of the medical image-aided diagnosis at the current stage is supervised learning, and a ...

Claims

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Application Information

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IPC IPC(8): G16H50/20G06T7/00G06T11/40
Inventor 罗涛郭克华
Owner CENT SOUTH UNIV
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