In this paper, we introduce a new skeleton pruning method based on contour partitioning. Any contour partition can be used, but the partitions obtained by Discrete Curve Evolution (DCE) yield excellent results. The theoretical properties and the experiments presented demonstrate that obtained skeletons are in accord with human visual perception and stable, even in the presence of significant noise and shape variations, and have the same topology as the original skeletons. In particular, we have proven that the proposed approach never produces spurious branches, which are common when using the known skeleton pruning methods. Moreover, the proposed pruning method does not displace the skeleton points. Consequently, all skeleton points are centers of maximal disks. Again, many existing methods displace skeleton points in order to produces pruned skeletons.
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http://dx.doi.org/10.1109/TPAMI.2007.59 | DOI Listing |
Brief Bioinform
November 2024
School of Artificial Intelligence, Jilin University, 3003 Qianjin Street, 130012 Changchun, China.
Accurate identification of causal genes for cancer prognosis is critical for estimating disease progression and guiding treatment interventions. In this study, we propose CPCG (Cancer Prognosis's Causal Gene), a two-stage framework identifying gene sets causally associated with patient prognosis across diverse cancer types using transcriptomic data. Initially, an ensemble approach models gene expression's impact on survival with parametric and semiparametric hazard models.
View Article and Find Full Text PDFZhongguo Gu Shang
August 2024
Department of Orthopaedics Trauma, the Second Affiliated Hospital of University of South China, Hengyang 421001, Hunan, China.
Objective: To investigate global optimisation of anterior acetabular column pinning channels can be achieved based on large density point cloud data.
Methods: Data were collected on the CT scans of the normal pelvis in 40 adults from January 2022 to January 2023, including 22 males and 18 females, aged 20 to 54 years old. Medical imaging data from three of the samples were selected for experimental study.
Med Biol Eng Comput
December 2024
Institute of Medical Innovation and Transformation, Puren Hospital Affiliated to Wuhan University of Science and Technology, Wuhan, 430081, China.
Ann Ital Chir
April 2024
Department of Thoracic Surgery, Shaoxing People's Hospital, 312000 Shaoxing, Zhejiang, China.
Introduction: Primary chest wall tumors account for 5% of all thoracic neoplasms and 1% of all primary tumors. Chondrosarcoma is a rare solid tumor, with an annual incidence of <0.5 per million people per year.
View Article and Find Full Text PDFOsteoporos Int
May 2024
Department of Kinesiology, Pennsylvania State University, 104 Noll Laboratory, University Park, PA, 16802, USA.
Unlabelled: Non-pharmacological therapies, such as whole-food interventions, are gaining interest as potential approaches to prevent and/or treat low bone mineral density (BMD) in postmenopausal women. Previously, prune consumption preserved two-dimensional BMD at the total hip. Here we demonstrate that prune consumption preserved three-dimensional BMD and estimated strength at the tibia.
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