Results 291 to 300 of about 5,706,267 (307)

Unsupervised Learning of Category-Specific Symmetric 3D Keypoints from Point Sets

European Conference on Computer Vision, 2020
Automatic discovery of category-specific 3D keypoints from a collection of objects of some category is a challenging problem. One reason is that not all objects in a category necessarily have the same semantic parts.
Clara Fernandez-Labrador, Ajad Chhatkuli, D. Paudel, J. J. Guerrero, C. Demonceaux, L. Gool   +5 more
semanticscholar   +1 more source

Point-symmetric signal extension for tile-based image compression

2000 IEEE International Conference on Acoustics, Speech, and Signal Processing. Proceedings (Cat. No.00CH37100), 2002
A new method called point-symmetric signal extension is developed for finite-length signal sub-band decomposition providing perfect reconstruction. The proposed approach is considered as an alternative to the well-known symmetric signal extension in dealing with the boundary artifacts that manifest when tiles of images are lossy compressed.
I. Kharitonenko, X. Zhang
openaire   +1 more source

Bifurcation of locally buckled point symmetric columns—Experimental investigations

Thin-Walled Structures, 2006
Abstract The bifurcation equations for locally buckled point symmetric sections are derived in a companion paper [Rasmussen KJR. Bifurcation of locally buckled point symmetric columns—analytical developments. Thin-walled Struct, submitted for publication]. In the present paper, two series of experiments are reported, one on narrow flange Z -sections
openaire   +1 more source

Plastic Torsion Analysis of Monosymmetric and Point-Symmetric Beams

Journal of Structural Engineering, 1999
This paper extends a simple method of analyzing the plastic torsion collapse of compact equal flange I-section beams to monosymmetric and point-symmetric beams. The method can be used manually, is much easier than elastic analysis, and is no more difficult than the plastic collapse analysis of beams in bending.
openaire   +1 more source

Bifurcation of locally buckled point symmetric columns—Analytical developments

Thin-Walled Structures, 2006
Abstract The paper derives the differential equations for the overall bifurcation of locally buckled point-symmetric columns. It is shown that flexural buckling about the minor and major principal axes are coupled in a locally buckled point-symmetric column whereas the buckling modes are uncoupled in a non-locally buckled column.
openaire   +1 more source

Robust symmetric iterative closest point

Isprs Journal of Photogrammetry and Remote Sensing, 2022
Jiayuan Li, Qingwu Hu, Yongjun Zhang, M. Ai   +3 more
semanticscholar   +1 more source

Distances of Polars in Pointed Symmetric R-Spaces

2014
Polars in a pointed compact symmetric space are connected components of the fixed point set of the geodesic symmetry at the origin. They carry important information about the ambient symmetric space. In this note we show that the distances to the origin of two distinct polars in a pointed indecomposable symmetric R-space are different.
Quast, Peter, Tanaka, Makiko Sumi
openaire   +1 more source

Extraction method for signal effective component based on extreme-point symmetric mode decomposition and Kullback–Leibler divergence

Journal of the Brazilian Society of Mechanical Sciences and Engineering, 2019
Yong Zhu, Shengnan Tang, Lingxiao Quan, Wanlu Jiang, Lingjiu Zhou   +4 more
semanticscholar   +1 more source

Bracing effect of sheathing in point-symmetric cold-formed steel flexural members

Journal of constructional steel research, 2019
S. Selvaraj, M. Madhavan
semanticscholar   +1 more source

Spatio‐temporal variations of nonlinear trends of precipitation over an arid region of northwest China according to the extreme‐point symmetric mode decomposition method

, 2018
Yanhua Qin, Baofu Li, Zhongsheng Chen, Yaning Chen, Lishu Lian   +4 more
semanticscholar   +1 more source