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Iteration-based image weak supervision segmentation method

A weakly supervised and iterative technology, applied in the field of weakly supervised image segmentation based on iteration, can solve the problems of segmentation accuracy dependence, prone to subjective deviation, time-consuming and laborious, etc., and achieve the effect of getting rid of the dependence of pixel-level precision labeling

Active Publication Date: 2021-08-17
FUDAN UNIV
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  • Application Information

AI Technical Summary

Problems solved by technology

[0002] Most of the existing deep learning image segmentation methods are supervised learning, and their segmentation accuracy depends heavily on a large amount of high-quality labeled data, which is not only time-consuming and labor-intensive, but also prone to subjective bias

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  • Iteration-based image weak supervision segmentation method
  • Iteration-based image weak supervision segmentation method
  • Iteration-based image weak supervision segmentation method

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Embodiment Construction

[0027] Such as figure 1 As shown, this embodiment relates to an iterative-based image weakly supervised segmentation method, and the specific steps include:

[0028] Step 1. Use the thyroid ultrasound image containing the positioning bounding box as weakly supervised information, and use the probability gradient labeling method to obtain training labels, including:

[0029] 1.1 In the initial image (1024×768 pixels) labeled with the positioning bounding box, a 256×256 pixel area near the bounding box of the specific area is randomly selected as the region of interest (Region of Interest, RoI).

[0030] 1.2 Use K-means pixel clustering operation for the region of interest, and select the largest connected region as the initial positioning label.

[0031] 1.3 The internal 60% of the specific area in the initial positioning label is regarded as the central fixed area, and the rest of the peripheral part is regarded as the uncertain external area; Continuous probabilistic gradie...

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Abstract

The invention relates to an iteration-based image weak supervision segmentation method, which comprises the following steps of: taking a thyroid ultrasound image containing a positioning bounding box as weak supervision information, obtaining a training label by utilizing a probability gradient labeling mode, continuously updating deep learning weak supervision segmentation network parameters and the training label in an iterative training mode, and finally, segmenting an image to be processed by adopting the trained network. Through optimization of the iterative network, the initial positioning label is converted into the final segmentation result under the weak supervision condition without manual intervention, and accurate segmentation of the specific area in the thyroid ultrasound image can be realized under the weak supervision condition without manual annotation.

Description

technical field [0001] The invention relates to a technology in the field of image processing, in particular to an iteration-based weakly supervised image segmentation method. Background technique [0002] Most of the existing deep learning image segmentation methods are supervised learning, and their segmentation accuracy depends heavily on a large amount of high-quality labeled data, which is not only time-consuming and labor-intensive, but also prone to subjective bias. Therefore, there is an increasing need to apply weakly supervised methods for automatic segmentation of thyroid ultrasound images in order to improve diagnostic performance and reduce human intervention. Contents of the invention [0003] Aiming at the above-mentioned deficiencies in the prior art, the present invention proposes an iterative-based weakly supervised image segmentation method, through the optimization of the iterative network, the initial positioning label is converted into the final segme...

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Application Information

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IPC IPC(8): G06T7/00G06T7/11G06K9/32G06K9/46G06K9/62G06N3/04G06N3/08
CPCG06T7/0012G06T7/11G06N3/08G06T2207/20104G06T2207/20081G06T2207/10132G06V10/25G06V10/44G06N3/048G06N3/045G06F18/23213
Inventor 郭翌刘若韵汪源源周世崇常才
Owner FUDAN UNIV
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