Results 321 to 330 of about 2,841,987 (371)

Composite spectral shape descriptor

2012 5th International Congress on Image and Signal Processing, 2012
Effective spectral representations of shape region are proposed in literature. On the other hand, a significant spatial characteristic of shape region is shape contour because human beings discriminate shapes mainly by their contour features. It is proposed that a descriptor is obtained by complementing the spectral representation of shape region with ...
openaire   +1 more source

BTC: A Binary and Triangle Combined Descriptor for 3-D Place Recognition

IEEE Transactions on robotics
Accurate and robust place recognition is essential for robot navigation, yet achieving full pose invariance and high performance across diverse scenes remains challenging. In this work, we propose a novel global and local combined descriptor named binary
Chongjian Yuan, Jiarong Lin, Zheng Liu, Hairuo Wei, Xiaoping Hong, Fu Zhang   +5 more
semanticscholar   +1 more source

Novel Shape Descriptors for Molecular Graphs

Journal of Chemical Information and Computer Sciences, 2001
We report on novel graph theoretical indices which are sensitive to the shapes of molecular graphs. In contrast to the Kier's kappa shape indices which were based on a comparison of a molecular graph with graphs representing the extreme shapes, the linear graph and the "star" graph, the new shape indices are obtained by considering for all atoms the ...
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MPEG-7 visual shape descriptors

IEEE Transactions on Circuits and Systems for Video Technology, 2001
This paper describes techniques and tools for shape representation and matching, developed in the context of MPEG-7 standardization. The application domains for each descriptor are considered, and the contour-based shape descriptor is presented in some detail. Example applications are also shown.
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Shape Descriptors

2009
Mateu Sbert, Miquel Feixas, Jaume Rigau, Miguel Chover, Ivan Viola   +4 more
openaire   +2 more sources

Magnetic resonance linear accelerator technology and adaptive radiation therapy: An overview for clinicians

Ca-A Cancer Journal for Clinicians, 2022
William A Hal, X Allen Li, Daniel A Low
exaly  

Learned Binary Spectral Shape Descriptor for 3D Shape Correspondence

Computer Vision and Pattern Recognition, 2016
J. Xie, M. Wang, Yi Fang
semanticscholar   +1 more source

Automatic brain tumor tissue detection based on hierarchical centroid shape descriptor in Tl-weighted MR images

International Conference on Electronics, Communications, and Computers, 2016
Elisee Ilunga-Mbuyamba, J. Aviña-Cervantes, D. Lindner, Jose de Jesus Guerrero-Turrubiates, C. Chalopin   +4 more
semanticscholar   +1 more source

Shape Descriptors

2013
Renée Heilbronner, Steve Barrett
openaire   +1 more source

Engineering organoids

Nature Reviews Materials, 2021
Moritz Hofer, Matthias P Lutolf
exaly