Results 11 to 20 of about 350,782 (166)
Frames generated by double sequences in Hilbert spaces [PDF]
Mathematica Moravica, 2023 In this paper, we introduce frames generated by double sequences (d-frame) in Hilbert spaces and describe some of their properties. Furthermore, we discuss frame operators, alternate dual frames and stability for d-frames.
Biswas Narendra +2 more
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A FREQUENCY-DRIFT COMPENSATED CLOSED-FORM SOLUTION FOR STEREO RGB-D MAPPING [PDF]
ISPRS Annals of the Photogrammetry, Remote Sensing and Spatial Information Sciences, 2019 In this work, we present a frequency-drift compensated (Fd-C) closed-form solution for stereo RGB-D SLAM. The intrinsic parameters for each sensor are first obtained with a standard camera calibration process and the extrinsic orientation parameters ...
S. J. Tang +7 more
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Notes on Ramond-Ramond spinors and bispinors in double field theory
Journal of High Energy Physics, 2023 The Ramond-Ramond sector of double field theory (DFT) can be described either as an O(D, D) spinor or an O(D − 1, 1) × O(1, D − 1) bispinor. Both formulations may be related to the standard polyform expansion in terms of even or odd rank field strengths ...
Daniel Butter
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PROGRESSIVE COLLAPSE ANALYSIS OF 2-D RC FRAMES USING AEM [PDF]
Civil Engineering Journal, 2017 Numerical simulation of a progressive collapse of structures using computer has a very actual apprehension for structural engineers due to their interest in structures veracity estimation. This simulation helps engineers to develop methods for increasing
Osama El-Mahdy +3 more
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Free constructions and coproducts of d-frames
CoRR, 2017 A general theory of presentations for d-frames does not yet exist. We review the difficulties and give sufficient conditions for when they can be overcome. As an application we prove that the category of d-frames is closed under coproducts.
Jakl, Tomás, Jung, Achim
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Feature-based RGB-D camera pose optimization for real-time 3D reconstruction
Computational Visual Media, 2017 In this paper we present a novel feature-based RGB-D camera pose optimization algorithm for real-time 3D reconstruction systems. During camera pose estimation, current methods in online systems suffer from fast-scanned RGB-D data, or generate inaccurate ...
Chao Wang, Xiaohu Guo
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Orthogonal Multiwavelet Frames in L2Rd
Journal of Applied Mathematics, 2012 We characterize the orthogonal frames and orthogonal multiwavelet frames in L2Rd with matrix dilations of the form (Df)(x)=detAf(Ax), where A is an arbitrary expanding d×d matrix with integer coefficients.
Liu Zhanwei, Hu Guoen, Wu Guochang
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Describing Local Reference Frames for 3-D Motion Trajectory Recognition
IEEE Access, 2018 Motion trajectories tracked from the points of interest can provide the key relevant features for characterizing the motion patterns in video. As the increasing number of 3-D vision sensors rises, the 3-D motion trajectories that serve as motion ...
Zhanpeng Shao +3 more
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Spectacle frames: Disposal practices, biodegradability and biocompatibility – A pilot study
African Vision and Eye Health, 2021 Background: Only limited information is available on the disposal methods for spectacle frames, and their interaction with the environment once such disposal occurs.
Rekha Hansraj +5 more
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Reinforcement Learning for Rate-Distortion Optimized Hierarchical Prediction Structure
IEEE Access, 2023 Video coding standards use a prediction structure to arrange video frames and exploit temporal correlations. In this aspect, it is crucial to resolve complicated temporal dependencies among frames to improve coding efficiency because the coding of a ...
Jung-Kyung Lee, Nayoung Kim, Je-Won Kang
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