Results 51 to 60 of about 2,841,987 (371)

Intrinsic shape context descriptors for deformable shapes [PDF]

2012 IEEE Conference on Computer Vision and Pattern Recognition, 2012
In this work, we present intrinsic shape context (ISC) descriptors for 3D shapes. We generalize to surfaces the polar sampling of the image domain used in shape contexts: for this purpose, we chart the surface by shooting geodesic outwards from the point being analyzed; `angle' is treated as tantamount to geodesic shooting direction, and radius as ...
Kokkinos, Iasonas, Bronstein, Michael M., Litman, Roee, Bronstein, Alexander M.   +3 more
openaire   +1 more source

Multi-view Convolutional Neural Networks for 3D Shape Recognition [PDF]

IEEE International Conference on Computer Vision, 2015
A longstanding question in computer vision concerns the representation of 3D shapes for recognition: should 3D shapes be represented with descriptors operating on their native 3D formats, such as voxel grid or polygon mesh, or can they be effectively ...
Hang Su, Subhransu Maji, E. Kalogerakis, E. Learned-Miller   +3 more
semanticscholar   +1 more source

Set of bilateral and radial symmetry shape descriptor based on contour information

IET Computer Vision, 2017
Form and shape descriptors are among the most useful features for object identification and recognition. Even though there exists a widely used set of shape descriptors and underlying computational methods for their evaluation, frequently they fail to ...
Natalia V. Revollo, Claudio A. Delrieux, Rolando González‐José   +2 more
doaj   +1 more source

A Quality Improvement Initiative to Standardize Pneumocystis jirovecii Pneumonia Prophylaxis in Pediatric Patients With Solid Tumors

Pediatric Blood &Cancer, EarlyView.
ABSTRACT Background Pediatric patients with extracranial solid tumors (ST) receiving chemotherapy are at an increased risk for Pneumocystis jirovecii pneumonia (PJP). However, evidence guiding prophylaxis practices in this population is limited. A PJP‐related fatality at our institution highlighted inconsistent prescribing approaches and concerns about
Kriti Kumar, Denise M. Connolly, Ellen Kellington, Elyse Zelunka, Karla Kerrigan, Furqan Shaikh, Paul C. Nathan, Meredith S. Irwin, Sarah Cohen‐Gogo   +8 more
wiley   +1 more source

AFSMWD: A Descriptor Flexibly Encoding Multiscale and Oriented Shape Features

Mathematics
Shape descriptors are extensively used in shape analysis tasks such as shape correspondence, segmentation and retrieval, just to name a few. Their performances significantly determine the efficiency and effectiveness of subsequent applications.
Ling Hu, Haibo Wang, Xuguang Yang, Haojun Xu, Yongzhong Liao   +4 more
doaj   +1 more source

Robust Depth-based Person Re-identification

, 2017
Person re-identification (re-id) aims to match people across non-overlapping camera views. So far the RGB-based appearance is widely used in most existing works. However, when people appeared in extreme illumination or changed clothes, the RGB appearance-
Lai, Jianhuang, Wu, Ancong, Zheng, Wei-Shi   +2 more
core   +1 more source

Sickle Cell Disease Is an Inherent Risk for Asthma in a Sibling Comparison Study

Pediatric Blood &Cancer, EarlyView.
ABSTRACT Introduction Sickle cell disease (SCD) and asthma share a complex relationship. Although estimates vary, asthma prevalence in children with SCD is believed to be comparable to or higher than the general population. Determining whether SCD confers an increased risk for asthma remains challenging due to overlapping symptoms and the ...
Suhei C. Zuleta De Bernardis, Okeleji Olayinka, Mariam Z. Quraishi, Lakshmi V. Srivaths, Deborah L. Brown, Neethu M. Menon, Ricardo A. Mosquera, Ashwin P. Patel, James M. Stark, Aravind Yadav   +9 more
wiley   +1 more source

Potential Early Risk Biomarkers for Reduced Forced Expiratory Volume in Children Post‐Hematopoietic Cell Transplantation

Pediatric Blood &Cancer, EarlyView.
ABSTRACT We sought to identify potential early risk biomarkers for lung disease in children post‐allogeneic HCT. Patients with pulmonary function tests 3 months post‐transplant and plasma samples between days 7 and 14 post‐HCT were included. Six of 27 subjects enrolled had reduced forced expiratory volume 1 (FEV1) z scores.
Isabella S. Small, Pi Chun Cheng, April L. Rahrig, Courtney M. Rowan   +3 more
wiley   +1 more source

Classification of 3D Archaeological Objects Using Multi-View Curvature Structure Signatures

IEEE Access, 2019
We propose a generalized 3D shape descriptor for the efficient classification of 3D archaeological artifacts. Our descriptor is based on a multi-view approach of curvature features, consisting of the following steps: pose normalization of 3D models ...
Mario Canul-Ku, Rogelio Hasimoto-Beltran, Diego Jimenez-Badillo, Salvador Ruiz-Correa, Edgar Roman-Rangel   +4 more
doaj   +1 more source

Spherical harmonics coeffcients for ligand-based virtual screening of cyclooxygenase inhibitors [PDF]

, 2011
Background: Molecular descriptors are essential for many applications in computational chemistry, such as ligand-based similarity searching. Spherical harmonics have previously been suggested as comprehensive descriptors of molecular structure and ...
Angioni, Carlo Federico, Birod, Kerstin, Geppert, Tim, Grösch, Sabine, Rupp, Matthias, Schneider, Gisbert (Prof. Dr.), Schneider, Petra, Wang, Quan   +7 more
core