Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Fundus image optic disc segmentation method based on rapid mean shift

A fundus image and mean shift technology, applied in the field of image processing, can solve problems such as low robustness, low segmentation efficiency, and low accuracy

Active Publication Date: 2019-06-11
UNIV OF ELECTRONICS SCI & TECH OF CHINA
View PDF6 Cites 6 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] In view of the problems of the above research, the purpose of the present invention is to provide a method for segmenting the optic disc of fundus images based on fast mean shift, which solves the problem of low accuracy, low robustness and low segmentation efficiency of the optic disc segmentation method in the prior art. The problem

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Fundus image optic disc segmentation method based on rapid mean shift
  • Fundus image optic disc segmentation method based on rapid mean shift
  • Fundus image optic disc segmentation method based on rapid mean shift

Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0133] Download the public fundus image data set HEI_MED from the Internet, and select the picture numbered 37 (original fundus image) for optic disc segmentation, such as figure 2 shown. Input the original fundus image for preprocessing, such as image 3 shown. Using the multi-light source color constancy algorithm, color correction is performed on the preprocessed original fundus image. Based on the color-corrected fundus image, fast mean shift is used to divide superpixels, such as Figure 4 shown. Gaussian matched filtering is used to obtain the blood vessel map of the color-corrected fundus image, such as Figure 5 shown. Combining the obtained blood vessel information for optic disc positioning, such as Figure 6 shown.

[0134] Select the most complete R-component channel image of the optic disc in the image of the candidate region of the optic disc, and use a circular structural element with a size of 7 for morphological expansion. The R component channel imag...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention discloses a fundus image optic disc segmentation method based on rapid mean shift, belongs to the technical field of image processing, and solves the problems of low accuracy, low robustness and low segmentation efficiency of an optic disc segmentation method in the prior art. The method comprises the steps of inputting and pre-processing an original fundus image wherein the originalfundus image is a to-be-analyzed fundus image; performing color correction on the fundus image subjected to color correction by using a multi-light-source color constancy algorithm; and carrying outoptic disc positioning by combining the blood vessel information in the preprocessed image, and segmenting out an optic disc region by utilizing rapid mean shift based on the fundus image after colorcorrection to obtain an optic disc image. The method is used for optic disc segmentation of the fundus image.

Description

technical field [0001] The invention discloses an optic disc segmentation method of fundus images based on fast mean shift, which is used for the optic disc segmentation of fundus images, and belongs to the technical field of image processing. Background technique [0002] The optic disc, also known as the optic nerve head, or optic disc for short, is one of the main physiological structures of the retina, from which the optic nerve and blood vessels enter the eye and extend to the periphery. In a normal color retinal fundus image, the optic disc generally appears as a nearly round light yellow or white bright spot with a diameter of about 1.5mm and contains thicker blood vessels. Optic disc segmentation has become a research hotspot in recent years. [0003] Optic disc segmentation aims to accurately locate the optic disc in the retinal fundus image and separate it from the background in the fundus image. [0004] In the existing optic disc segmentation technology, the To...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
IPC IPC(8): G06T7/11G06T7/60G06T7/70G06T7/00G06K9/62
Inventor 孔轩彭真明王慧范文澜赵学功曹兆洋张文超袁国慧王卓然蒲恬何艳敏
Owner UNIV OF ELECTRONICS SCI & TECH OF CHINA
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com