Results 31 to 40 of about 81,242 (307)

Dual-Fusion Active Contour Model with Semantic Information for Saliency Target Extraction of Underwater Images

open access: yesApplied Sciences, 2022
Underwater vision research is the foundation of marine-related disciplines. The target contour extraction is significant for target tracking and visual information mining.
Shudi Yang, Jiaxiong Wu, Zhipeng Feng
doaj   +1 more source

Active Contours in the Complex Domain for Salient Object Detection

open access: yesApplied Sciences, 2020
The combination of active contour models (ACMs) for both contour and salient object detection is an attractive approach for researchers in image segmentation. Existing active contour models fail when improper initialization is performed.
Umer Sadiq Khan   +2 more
doaj   +1 more source

Facial contour extraction method of underground personnel

open access: yesGong-kuang zidonghua, 2015
For low identification ratio of attendance system of coal mine caused by difficult facial contour extraction of underground personnel, a facial contour extraction method was proposed based on active contour model (Snake model) and active shape model (ASM)
NIU Yumei, CHEN Lichao, PAN Lihu
doaj   +1 more source

The Potential of Active Contour Models in Extracting Road Edges from Mobile Laser Scanning Data

open access: yesInfrastructures, 2017
Active contour models present a robust segmentation approach, which makes efficient use of specific information about objects in the input data rather than processing all of the data.
Pankaj Kumar, Paul Lewis, Tim McCarthy
doaj   +1 more source

Wide-Field 3D Ultrasound Imaging Platform With a Semi-Automatic 3D Segmentation Algorithm for Quantitative Analysis of Rotator Cuff Tears

open access: yesIEEE Access, 2020
Rotator cuff tear (RCT) is a common injury that causes pain and disability in adults. The quantitative diagnosis of the RCT can be crucial in determining a treatment plan or monitoring treatment efficacy.
Moon Hwan Lee   +4 more
doaj   +1 more source

Retracted: Active Contour Image Segmentation Method for Training Talents of Computer Graphics and Image Processing Technology

open access: yesIEEE Access, 2021
Image segmentation is a key technology in the field of computer image processing. Among them, segmentation methods based on active contour models have been developed rapidly in recent years due to their effective processing of complex images such as ...
Xinghuo Ye, Qianyi Wang
doaj   +1 more source

Morphing active contours

open access: yesIEEE Transactions on Pattern Analysis and Machine Intelligence, 1999
A method for deforming curves in a given image to a desired position in a second image is introduced in this paper. The algorithm is based on deforming the first image toward the second one via a partial Differential equation, while tracking the deformation of the curves of interest in the first image with an additional, coupled, partial Differential ...
Marcelo Bertalmío   +2 more
openaire   +2 more sources

A Novel Active Contour Model Guided by Global and Local Signed Energy-Based Pressure Force

open access: yesIEEE Access, 2020
Active contour models (ACMs) have been widely applied in the field of image segmentation. However, it is still very challenging to construct an efficient ACM to segment images with intensity inhomogeneity.
Huaxiang Liu   +3 more
doaj   +1 more source

Multi-scale and shape constrained localized region-based active contour segmentation of uterine fibroid ultrasound images in HIFU therapy. [PDF]

open access: yesPLoS ONE, 2014
To overcome the severe intensity inhomogeneity and blurry boundaries in HIFU (High Intensity Focused Ultrasound) ultrasound images, an accurate and efficient multi-scale and shape constrained localized region-based active contour model (MSLCV), was ...
Xiangyun Liao   +5 more
doaj   +1 more source

Higher Order Active Contours [PDF]

open access: yesInternational Journal of Computer Vision, 2006
We introduce a new class of active contour models that hold great promise for region and shape modelling, and we apply a special case of these models to the extraction of road networks from satellite and aerial imagery. The new models are arbitrary polynomial functionals on the space of boundaries, and thus greatly generalize the linear functionals ...
Marie Rochery   +2 more
openaire   +3 more sources

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