Results 91 to 100 of about 792,653 (314)

SLAM-Based Self-Calibration of a Binocular Stereo Vision Rig in Real-Time

Sensors, 2020
The calibration problem of binocular stereo vision rig is critical for its practical application. However, most existing calibration methods are based on manual off-line algorithms for specific reference targets or patterns.
Hesheng Yin, Zhe Ma, Ming Zhong, Kuan Wu, Yuteng Wei, Junlong Guo, Bo Huang   +6 more
doaj   +1 more source

Exciting trajectories for extrinsic calibration of mobile robots with cameras [PDF]

2017 IEEE 20th International Conference on Intelligent Transportation Systems (ITSC), 2017
The paper presents a method to precompute the optimal (so-called exciting) trajectories for the extrinsic calibration of a mobile robot equipped with the wheel odometry and one or more cameras. Considering the fact that the calibration is formulated as a non-linear least-square problem, the method is based on the analysis of the cost function ...
Khomutenko, Bogdan, Garcia, Gaëtan, Martinet, Philippe   +2 more
openaire   +2 more sources

SAA/FPR2 Signaling Between Pericentral Hepatocytes and Macrophages Exacerbates Zonated Liver Transplant Injury

Advanced Science, EarlyView.
After liver transplantation, ischemia‐reperfusion injury is more severe in pericentral regions. Multiomic analyses of human grafts and mouse models identify FOXO1 activation in pericentral hepatocytes as an upstream driver of SAA secretion. SAA recruits and activates FPR2+ macrophages, amplifying local inflammation. Amilo‐5MER inhibits SAA bioactivity,
Feng Zhang, Rong Li, Tingting Wang, Jianhao Zhang, Zhengqi Wu, Qiang You, Xuying Liu, Cuicui Xiao, Jiebin Zhang, Haitian Chen, Jiaqi Xiao, Jia Yao, Jun Zheng, Yingcai Zhang, Hua Li, Shuhong Yi, Yang Yang, Qi Zhang, Xiaofeng Yuan, Yasong Liu   +19 more
wiley   +1 more source

Multipath-Closure Calibration of Stereo Camera and 3D LiDAR Combined with Multiple Constraints

Remote Sensing
Stereo cameras can capture the rich image textures of a scene, while LiDAR can obtain accurate 3D coordinates of point clouds of a scene. They complement each other and can achieve comprehensive and accurate environment perception through data fusion ...
Jianqiao Duan, Yuchun Huang, Yuyan Wang, Xi Ye, He Yang   +4 more
doaj   +1 more source

Extrinsic geometry of calibrated submanifolds

Mathematische Zeitschrift
Given a calibration $α$ whose stabilizer acts transitively on the Grassmanian of calibrated planes, we introduce a nontrivial Lie-theoretic condition on $α$, which we call compliancy, and show that this condition holds for many interesting geometric calibrations, including Kähler, special Lagrangian, associative, coassociative, and Cayley. We determine
Karigiannis, Spiro, Martín-Merchán, Lucía   +1 more
openaire   +3 more sources

NQO1‐Mediated Anoikis Resistance and Immune Evasion Define a High‐Risk Multi‐Omic Subtype for Precision Management of T1 High‐Grade Bladder Cancer

Advanced Science, EarlyView.
Multi‐omic profiling of T1 high‐grade bladder cancer identifies a high‐risk subtype (T1HG1) driven by NQO1, which couples anoikis resistance with immune evasion. NQO1 orchestrates macrophage–T cell crosstalk suppression via CXCL9 modulation. Pharmacological NQO1 inhibition with skullcapflavone II enhances cisplatin efficacy, representing a promising ...
Bin Guo, Chunru Xu, Shufan Fu, Qiang Cheng, Juan Li, Linkuo Shang, Gaojie Li, Yang Yang, Ying Wang, Yanqing Gong, Shengwei Xiong, Jian Fan, Changwei Yuan, Mei Zhang, Yifan Zuo, Elena Papaleo, Yue Shi, Yuan Liang, Xuesong Li, Hongzhao Li, Weimin Ci   +20 more
wiley   +1 more source

Continuous Online Extrinsic Calibration of Fisheye Camera and LiDAR

, 2023
Automated driving systems use multi-modal sensor suites to ensure the reliable, redundant and robust perception of the operating domain, for example camera and LiDAR.
Tschirner, Jeremy, Milz, Stefan, Borer, Jack, Ölsner, Florian   +3 more
core  

High‐Throughput Data Generation and Transfer Learning Enabled Microstructure‐Property Integrated Design of Nickel‐Based Powder Metallurgy Superalloy

Advanced Science, EarlyView.
An integrated transfer learning framework integrates CALPHAD simulations, diffusion‐multiple experiments, and literature data to predict long‐term microstructural stability and short‐term mechanical properties of Ni‐based powder metallurgy superalloys. Based on these model predictions, a high‐performance, low‐density alloy, USTB‐PM750, is designed from
Zixin Li, Hongtao Zhang, Zichao Peng, Yuheng Zhang, Qian Lv, Yihuan Cao, Xuqing Wang, Huadong Fu, Jianxin Xie   +8 more
wiley   +1 more source

Multiscale Architecture and Mechanics of the Cell Nucleus: Implications for Disease, Bioengineering and Nanomedicine

Advanced Science, EarlyView.
Nuclear mechanical properties are inherently scale‐dependent, arising from a hierarchical architecture that spans DNA, chromatin, the nuclear envelope, and condensates. Experimental techniques and theoretical models are integrated into a cohesive multiscale framework linking nanoscale structural features to organelle‐level mechanical behavior.
Xinran Liu, Xin Chen, Qingyang Zhao, Weikang Tan, Lingrui Zhu, Kin Liao, Vincent Chan, Nicolae Goga, Winfred O. Larkotey, Yang Li, Yinghui Shi, Wenya Shu, Lin Wang, Weiqing Wang, Tian Jian Lu, Yulong Han   +15 more
wiley   +1 more source

Extrinsic parameter calibration methods of sensors present in a robot tractor

Smart Agricultural Technology
To achieve large-scale deployment of autonomous agricultural machines, a reliable and accurate perception system must be developed. Often, autonomous machines use and require data from several sensors to work optimally and safely.
Jere Knuutinen, Juha Backman, Raimo Linkolehto, Arto Visala   +3 more
doaj   +1 more source