Rotation (mathematics) ≈ Rotation (mathematics)
View article: PoseCNN: A Convolutional Neural Network for 6D Object Pose Estimation in Cluttered Scenes
PoseCNN: A Convolutional Neural Network for 6D Object Pose Estimation in Cluttered Scenes Open
Estimating the 6D pose of known objects is important for robots to interact with the real world.The problem is challenging due to the variety of objects as well as the complexity of a scene caused by clutter and occlusions between objects.…
View article
Modules for Experiments in Stellar Astrophysics (MESA): Pulsating Variable Stars, Rotation, Convective Boundaries, and Energy Conservation Open
We update the capabilities of the open-knowledge software instrument Modules for Experiments in Stellar Astrophysics ( MESA ). RSP is a new functionality in MESAstar that models the nonlinear radial stellar pulsations that characterize RR …
View article
Present‐Day Crustal Deformation of Continental China Derived From GPS and Its Tectonic Implications Open
We process rigorously GPS data observed during the past 25 years from continental China to derive site secular velocities. Analysis of the velocity solution leads to the following results. (a) The deformation field inside the Tibetan plate…
View article
R3Det: Refined Single-Stage Detector with Feature Refinement for Rotating Object Open
Rotation detection is a challenging task due to the difficulties of locating the multi-angle objects and separating them effectively from the background. Though considerable progress has been made, for practical settings, there still exist…
View article
AutoAugment: Learning Augmentation Policies from Data Open
Data augmentation is an effective technique for improving the accuracy of modern image classifiers. However, current data augmentation implementations are manually designed. In this paper, we describe a simple procedure called AutoAugment …
View article
Quaternions and Rotation Sequences Open
In this paper we introduce and define the quaternion; we give a brief introduction to its properties and algebra, and we show, what appears to be, its primary application -the quaternion rotation operator.The quaternion rotation operator c…
View article
Radial Acceleration Relation in Rotationally Supported Galaxies Open
We report a correlation between the radial acceleration traced by rotation curves and that predicted by the observed distribution of baryons. The same relation is followed by 2693 points in 153 galaxies with very different morphologies, ma…
View article
Tensor field networks: Rotation- and translation-equivariant neural networks for 3D point clouds Open
We introduce tensor field neural networks, which are locally equivariant to 3D rotations, translations, and permutations of points at every layer. 3D rotation equivariance removes the need for data augmentation to identify features in arbi…
View article
Automatic Ship Detection in Remote Sensing Images from Google Earth of Complex Scenes Based on Multiscale Rotation Dense Feature Pyramid Networks Open
Ship detection has been playing a significant role in the field of remote sensing for a long time, but it is still full of challenges. The main limitations of traditional ship detection methods usually lie in the complexity of application …
View article
Using Convolutional Neural Network to Design and Predict the Forces and Kinematic Performance and External Rotation Moment of the Hip Joint in the Pelvis Open
In order to improve the dynamic and kinematic adaptability of the hip joint, this paper presented a control attitude and kinematics and torque of the hip joint with power based neural network control. The CNN neural network uses input data…
View article
Rortex—A new vortex vector definition and vorticity tensor and vector decompositions Open
A vortex is intuitively recognized as the rotational/swirling motion of the fluids. However, an unambiguous and universally accepted definition for vortex is yet to be achieved in the field of fluid mechanics, which is probably one of the …
View article
Rotational manipulation of single cells and organisms using acoustic waves Open
The precise rotational manipulation of single cells or organisms is invaluable to many applications in biology, chemistry, physics and medicine. In this article, we describe an acoustic-based, on-chip manipulation method that can rotate si…
View article
Quaternion kinematics for the error-state Kalman filter Open
This article is an exhaustive revision of concepts and formulas related to quaternions and rotations in 3D space, and their proper use in estimation engines such as the error-state Kalman filter. The paper includes an in-depth study of the…
View article
Rotary and linear molecular motors driven by pulses of a chemical fuel Open
Acid fuels the motion of a threaded ring A central goal in the construction of molecular-scale machines is the efficient achievement of one-way motion. Erbas-Cakmak et al. developed a class of machines that transmit pH changes into the two…
View article
Shadow of rotating regular black holes Open
We study the shadows cast by the different types of rotating regular black holes viz. Ay\'on-Beato-Garc\'ia {(ABG)}, Hayward, and Bardeen. These black holes have in addition to the total mass ($M$) and rotation parameter ($a$), different p…
View article
Has Invisalign improved? A prospective follow-up study on the efficacy of tooth movement with Invisalign Open
There was a marked improvement in the overall accuracy; however, the strengths and weaknesses of tooth movement with Invisalign remained relatively the same.
View article
Quantized Faraday and Kerr rotation and axion electrodynamics of a 3D topological insulator Open
Time-domain terahertz polarimetry is used to measure the fine-structure constant in the solid state.
View article
Concerted hydrogen-bond breaking by quantum tunneling in the water hexamer prism Open
Gear-like rotation by a wobbly water duo The molecules in liquid water move about constantly, but on average they cling to each other through hydrogen bonds, like dancers who keep switching partners. Richardson et al. uncovered a fresh twi…
View article
Slowing the spins of stellar cores Open
The angular momentum (AM) evolution of stellar interiors, along with the resulting rotation rates of stellar remnants, remains poorly understood. Asteroseismic measurements of red giant stars reveal that their cores rotate much faster than…
View article
THE Hα EMISSION OF NEARBY M DWARFS AND ITS RELATION TO STELLAR ROTATION Open
The high-energy emission from low-mass stars is mediated by the magnetic dynamo. Although the mechanisms by which fully convective stars generate large-scale magnetic fields are not well understood, it is clear that, as for solar-type star…
View article
Kinematics in Young Star Clusters and Associations with Gaia DR2 Open
The Gaia mission has opened a new window into the internal kinematics of young star clusters at the sub-km s −1 level, with implications for our understanding of how star clusters form and evolve. We use a sample of 28 clusters and associa…
View article
Dynamic Anchor Learning for Arbitrary-Oriented Object Detection Open
Arbitrary-oriented objects widely appear in natural scenes, aerial photographs, remote sensing images, etc., and thus arbitrary-oriented object detection has received considerable attention. Many current rotation detectors use plenty of an…
View article
Diversifying crop rotation increases food production, reduces net greenhouse gas emissions and improves soil health Open
Global food production faces challenges in balancing the need for increased yields with environmental sustainability. This study presents a six-year field experiment in the North China Plain, demonstrating the benefits of diversifying trad…
View article
Quantum control of molecular rotation Open
The angular momentum of molecules, or, equivalently, their rotation in\nthree-dimensional space, is ideally suited for quantum control. Molecular\nangular momentum is naturally quantized, time evolution is governed by a\nwell-known Hamilto…
View article
Defining coherent vortices objectively from the vorticity Open
ISSN:0022-1120
View article
Maximum mass, moment of inertia and compactness of relativistic stars Open
A number of recent works have highlighted that it is possible to express the properties of general-relativistic stellar equilibrium configurations in terms of functions that do not depend on the specific equation of state employed to descr…
View article
Image Matching Using SIFT, SURF, BRIEF and ORB: Performance Comparison for Distorted Images Open
Fast and robust image matching is a very important task with various applications in computer vision and robotics. In this paper, we compare the performance of three different image matching techniques, i.e., SIFT, SURF, and ORB, against d…
View article
GHz Rotation of an Optically Trapped Nanoparticle in Vacuum Open
We report on rotating an optically trapped silica nanoparticle in vacuum by transferring spin angular momentum of light to the particle's mechanical angular momentum. At sufficiently low damping, realized at pressures below 10^{-5} mbar, w…
View article
A Kinematical Detection of Two Embedded Jupiter-mass Planets in HD 163296 Open
We present the first kinematical detection of embedded protoplanets within a protoplanetary disk. Using archival Atacama Large Millimetre Array (ALMA) observations of HD 163296, we demonstrate a new technique to measure the rotation curves…
View article
Learning Modulated Loss for Rotated Object Detection Open
Popular rotated detection methods usually use five parameters (coordinates of the central point, width, height, and rotation angle) or eight parameters (coordinates of four vertices) to describe the rotated bounding box and l1 loss as the …