Results 11 to 20 of about 202,657 (264)
Improved Direct Linear Transformation for Parameter Decoupling in Camera Calibration
Algorithms, 2016 For camera calibration based on direct linear transformation (DLT), the camera’s intrinsic and extrinsic parameters are simultaneously calibrated, which may cause coupling errors in the parameters and affect the calibration parameter accuracy.
Zhenqing Zhao +4 more
doaj +1 more source
A Simple Calibration and Verification Method for Solid-State Lidar
Shanghai Jiaotong Daxue xuebao, 2021 In order to solve the problem of cumbersome external parameter calibration of solid-state lidar and overcome the difficulty in verifying its calibration results, a simple calibration and verification method for solid-state lidar is proposed.
YANG Yiwen, HE Yuesheng, WANG Chunxiang, YANG Ming
doaj +1 more source
Simultaneous Parameter Calibration, Localization, and Mapping [PDF]
Advanced Robotics, 2012 Abstract The calibration parameters of a mobile robot play a substantial role in navigation tasks. Often these parameters are subject to variations that depend either on changes in the environment or on the load of the robot. In this paper, we propose an approach to simultaneously estimate a map of the environment, the position of the on-board sensors ...
Rainer Kummerle +2 more
openaire +2 more sources
IEEE Access, 2023 The fusion of camera and lidar plays an important role in the field of robotic perception. The accurate external parameter calibration is a necessary prerequisite for sensor fusion.
Song Fan +3 more
doaj +1 more source
The Effect of Noise on Camera Calibration Parameters
Graphical Models, 2001 Summary: Camera calibration is the estimation of parameters (both intrinsic and extrinsic) associated with a camera being used for imaging. Given the world coordinates of a number of precisely placed points in a 3D space, camera calibration requires the measurement of the 2D projection of those scene points on the image plane.
Sunil Kumar Kopparapu, Peter I. Corke
openaire +1 more source
MEASUREMENT ACCURACY ON 3D POINT CLOUD GENERATED USING MULTISPECTRAL IMAGERY BY DIFFERENT CALIBRATION METHODS [PDF]
The International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences, 2019 The state-of-the-art lightweight multispectral cameras are widely used for low altitude remote sensing, also can be exploited as a tool for close-range photogrammetry application.
K. Zainuddin +4 more
doaj +1 more source
Agronomy, 2019 An important but rarely studied aspect of crop modeling is the uncertainty associated with model calibration and its effect on model prediction. Biomass and grain yield data from a four-year maize experiment (2008−2011) with six irrigation ...
Quanxiao Fang +8 more
doaj +1 more source
A Robust Calibration and Evaluation Framework for Dynamic Catchment Characteristics in Hydrological Modeling [PDF]
Hydrology and Earth System SciencesHydrological models often face challenges in accurately simulating hydrological processes within dynamic catchments due to simplifications of model structure.
T. Lan +15 more
doaj +1 more source
Calibration approaches for distributed hydrologic models in poorly gaged basins: implication for streamflow projections under climate change [PDF]
Hydrology and Earth System Sciences, 2015 This study tests the performance and uncertainty of calibration strategies for a spatially distributed hydrologic model in order to improve model simulation accuracy and understand prediction uncertainty at interior ungaged sites of a sparsely gaged ...
S. Wi +4 more
doaj +1 more source
Method of Tower-less Calibration for Phase Parameter of Tracking System
MATEC Web of Conferences, 2015 This paper introduced the principle of angle errors in tracking system. The demodulation was only related to signal envelop, and supported the phase calibration of radio star.
Ge Tiezhi +4 more
doaj +1 more source