Results 21 to 30 of about 10,801,644 (213)
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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Journal of Mountain Research, 2023 In the present paper, we discuss about some more properties of K-d-frames and their duals in . We extend the concept of stability of the K-frame and tight K- frame under some perturbations for the double sequences. We also generalize the concept of quotient of bounded operator of K-frame. Furthermore, we show the relationship between the optimal bounds
Neha Pauriyal, Mahesh C. Joshi
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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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Virtual Frames as Long-Term Reference Frames for HEVC Inter-Prediction [PDF]
, 2020 High Efficiency Video Coding(HEVC) employs both past or future frames when encoding the current frame in a video sequence. This paper proposes a framework for using virtual reference frames, to achieve increased coding gains in the long-term for ...
Erabadda, Budhipprapha +8 more
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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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