Results 11 to 20 of about 4,243,261 (296)
Scaled oscillation and level sets [PDF]
Proceedings of the American Mathematical Society, 2022 We study the size and regularity properties of level sets of continuous functions with bounded upper-scaled and lower-scaled oscillation.
Altaf, Iqra +2 more
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Geo-spatial Information Science, 2021 Level set method has been extensively used for image segmentation, which is a key technology of water extraction. However, one of the problems of the level-set method is how to find the appropriate initial surface parameters, which will affect the ...
Chuan Xu +6 more
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A Unified Approach for Patient Activity Recognition in Healthcare Using Depth Camera
IEEE Access, 2021 Context-awareness is an essential part of pervasive computing. Video-based human activity recognition (HAR) has arisen as an imperative module to detect user’s situation for involuntary facility delivery in context-aware domains.
Muhammad Hameed Siddiqi +6 more
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An Improved Level Set Algorithm for Prostate Region Segmentation
Chinese Journal of Magnetic Resonance, 2021 Accurate segmentation of prostate region is an important prerequisite to improve the accuracy of computer-aided prostate cancer diagnosis. In this work, a new and accurate prostate segmentation algorithm is proposed and tested. The new algorithm consists
Shi-ju YAN, Yong-sen HAN, Guang-yu TANG
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Research on laser center positioning under CV model segmentation
Frontiers in Physics, 2022 Spot positioning accuracy is an important index of laser processing system and ranging system. When the laser spot is noisy or the gray level is not uniform, the positioning accuracy is easily affected. Aiming at the above problems, this paper proposes a
Xingchen Guo +5 more
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Saliency-Driven Active Contour Model for Image Segmentation
IEEE Access, 2020 Active contour models have achieved prominent success in the area of image segmentation, allowing complex objects to be segmented from the background for further analysis.
Ehtesham Iqbal +4 more
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(Convex) Level Sets Integration [PDF]
Journal of Optimization Theory and Applications, 2015 The authors investigate the problem of recovering a pseudoconvex function from a multi-valued map that generates the normal cones to the (lower) level set of the function. This ``(convex) level set integration'' is a generalization of the classical problem of recovering (integrating) a differentiable function from its gradient with a given value in ...
Jean-Pierre Crouzeix +2 more
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One-Layer Particle Level Set Method
Shanghai Jiaotong Daxue xuebao, 2021 A one-layer particle level set method in which Lagrangian particles are employed to track the interface features is proposed and utilized to capture the interface. First, the interface is captured by utilizing the level set method. Then, the interface is
MU Kailong, ZHAO Lanhao, MAO Jia
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Left-ventricle myocardium segmentation using a coupled level-set with a priori knowledge [PDF]
, 2006 This paper presents a coupled level-set segmentation of the myocardium of the left ventricle of the heart using a priori information. From a fast marching initialisation, two fronts representing the endocardium and epicardium boundaries of the left ...
Lynch, Michael +2 more
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An Image Segmentation Method Based on Improved Regularized Level Set Model
Applied Sciences, 2018 When the level set algorithm is used to segment an image, the level set function must be initialized periodically to ensure that it remains a signed distance function (SDF).
Lin Sun +3 more
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