Results 21 to 30 of about 55,861 (258)
A fast region-based active contour for non-rigid object tracking and its shape retrieval [PDF]
PeerJ Computer Science, 2021 Conventional tracking approaches track objects using a rectangle bounding box. Gait, gesture and many medical analyses require non-rigid shape extraction.
Hiren Mewada +5 more
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FRACTIONAL DIFFERENTIATION-BASED EDGE ENERGY DRIVEN ACTIVE CONTOURS FOR ROBUST IMAGE SEGMENTATION
ICTACT Journal on Image and Video Processing, 2021 In this paper, a new fractional differentiation-based active contour model for robust image segmentation is presented. A new edge energy is introduced, in which the contour evolution is driven by the difference between the fractional derivatives directed
Srikanth Khanna, V Chandrasekaran
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Facial contour extraction method of underground personnel
Gong-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
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Evaluation of Semi-automatic Segmentation Methods for Persistent Ground Glass Nodules on Thin-Section CT Scans [PDF]
Healthcare Informatics Research, 2016 ObjectivesThis work was a comparative study that aimed to find a proper method for accurately segmenting persistent ground glass nodules (GGN) in thin-section computed tomography (CT) images after detecting them.MethodsTo do this, we first applied five ...
Young Jae Kim +3 more
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Active Contour Model for Image Segmentation With Dilated Convolution Filter
IEEE Access, 2021 ACMs have been demonstrated to be highly suitable as image segmentation models for computer vision tasks. Among other ACM, the local region-based models show better performance because they extract the local information regarding intensity in the ...
Usman Asim +4 more
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Texture-and-Shape Based Active Contour Model for Insulator Segmentation
IEEE Access, 2019 Insulator segmentation is a critical step for automatic insulator fault diagnosis in high voltage transmission systems. Existing methods fail to segment insulators when they have a low contrast with the surroundings.
Yajie Yu +5 more
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Active Contours in the Complex Domain for Salient Object Detection
Applied 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
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An Active Contour Model without Edges [PDF]
, 1999 In this paper, we propose a new model for active contours to detect objects in a given image, based on techniques of curve evolution, Mumford-Shah functional for segmentation and level sets. Our model can detect objects whose boundaries are not necessarily defined by gradient.
Tony F. Chan, Luminita A. Vese
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IET Image Processing, 2019 In the traditional active contour models, global region‐based methods fail to segment images with intensity inhomogeneity, and local region‐based methods are sensitive to initial contour.
Hongli Lv +3 more
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A Model Based Dual Active Contour [PDF]
Procedings of the British Machine Vision Conference 1994, 1994 Active contours are now established as a technique for extracting salient contours from an image. Unfortunately the original technique suffers from many problems. A novel model-based dual active contour, a method of integrating global shape information with two active contours, has been developed to overcome the primary problems; sensitivity to ...
Steve R. Gunn, Mark S. Nixon
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