Results 51 to 60 of about 5,060,163 (327)
Fuzzy Region-Based Active Contours Driven by Weighting Global and Local Fitting Energy
IEEE Access, 2019 contour model (ACM) has been a successful method for image segmentation. The existing ACMs poorly segment the images with intensity inhomogeneity or non-homogeneity, and the results highly depend on the initial position of the contour.
Jiangxiong Fang +4 more
semanticscholar +1 more source
Splitting and Merging for Active Contours: Plug-and-Play
MathematicsThis study tackles the challenge of splitting and merging in parametric active contours or snakes. The proposed method comprises three stages: (1) fully 4-connected interpolation, (2) snake splitting, and (3) snakes merging.
Mojtaba Lashgari +2 more
doaj +1 more source
Myocardial boundary extraction using coupled active contours [PDF]
, 2003 Automatic extraction of object boundaries in medical images using active contours is a popular research item. A problem with active contours is that they may fail to give correct results in cases of low contrast, noise or the neighbourhood of other edges.
M. Breeuwer +3 more
core +1 more source
Tracking with Sobolev active contours
, 2006 Recently proposed Sobolev active contours introduced a new paradigm for minimizing energies defined on curves by changing the traditional cost of perturbing a curve and thereby redefining their gradients.
Jeremy D. Jackson +2 more
core +2 more sources
Fast ship contour extraction in SAR images
The Journal of Engineering, 2019 Fast ship contour extraction in synthetic aperture radar (SAR) images plays an important role in sea surface surveillance. Ship contours and sizes and shapes extracted from them are salient features in ship classification and recognition.
Yuan-Ying Nie +2 more
doaj +1 more source
Active Contours with Group Similarity [PDF]
2013 IEEE Conference on Computer Vision and Pattern Recognition, 2013 Active contours are widely used in image segmentation. To cope with missing or misleading features in images, researchers have introduced various ways to model the prior of shapes and use the prior to constrain active contours. However, the shape prior is usually learnt from a large set of annotated data, which is not always accessible in practice ...
Xiaowei Zhou 0001 +3 more
openaire +1 more source
BRAIN MR IMAGE SEGMENTATION BY MODIFIED ACTIVE CONTOURS AND CONTOURLET TRANSFORM
ICTACT Journal on Image and Video Processing, 2017 Multiresolution analysis is often used for image representation and processing because it can represent image at the split resolution and scale space.
P Nageswara Reddy +2 more
doaj +1 more source
Pediatric Blood &Cancer, EarlyView.ABSTRACT Background Sickle cell disease (SCD) is a chronic, inherited hemoglobinopathy that requires frequent hospitalization for disease‐related complications. Canadian data on inpatient care is limited. This study compared caregiver‐reported hospital experiences of children with SCD to those with cystic fibrosis (CF), a chronic, autosomal recessive ...
Hailey M. Zwicker +11 more
wiley +1 more source
Therapeutic Apheresis and Dialysis, EarlyView.ABSTRACT Objective To compare the efficacy and safety of roxarestat versus recombinant human erythropoietin (rhEPO) in the management of renal anemia in patients undergoing maintenance hemodialysis. Methods This was a prospective, open‐label, randomized controlled trial.
Lingling Chen, Junjie Zhu, Qiaonan Ge
wiley +1 more source
Active Contours without Level Sets [PDF]
, 2012 International audienceThis paper deals with the problem of segmenting an image with active contours. We explain how recent convexification methods allow now to use active contours without level sets with simple and efficient first order schemes.
Aujol, Jean-François +5 more
core +1 more source