Automatic localization and segmentation of optical disk based on faster R-CNN and level set in fundus image.
Defeng ZhangWeifang ZhuHeming ZhaoFei ShiXinjian ChenPublished in: Medical Imaging: Image Processing (2018)
Keyphrases
- level set
- image segmentation
- energy functional
- level set framework
- variational framework
- image segmentation methods
- energy function
- intensity inhomogeneity
- active contours
- geodesic active contours
- curve evolution
- region based segmentation
- segmentation method
- shape prior
- variational level set method
- level set method
- narrow band
- piecewise constant
- partial differential equations
- variational formulation
- multiscale
- chan vese
- signed distance function
- mumford shah functional
- variational methods
- segmentation algorithm
- image analysis
- level set based segmentation
- input image
- fundus images
- mumford shah
- evolution equation
- level set evolution
- fully automatic
- region competition
- geometric active contours
- region based active contours
- image processing
- graph cuts
- optic disc
- edge detection
- segmentation result
- textured images
- prior shape knowledge
- active contour model
- multiphase segmentation
- object segmentation
- region growing
- object boundaries
- signed distance
- regularization term
- segmented images
- gray level images
- image segmentation algorithm
- contour detection
- gradient vector flow