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中国科学院沈阳自动化研究所专利：基于单目视觉的IMU漂移补偿方法
本文以实现移动小型智能化系统的实时自主定位为目标,针对激光里程计误差累计大,旋转估计不稳定,以及观测信息利用不充分等问题,提出一种LiDAR/IMU紧耦合的实时定位方法—Inertial-LOAM.数据预处理部分,对IMU数据预积分,降低优化变量维度,并为点云畸变校正提供参考.提出一种基于角度图像的快速点云分割方法,筛选结构性显著的点作为特征点,降低点云规模,保证激光里程计的效率。
GEOREFERENCING IN GNSS-CHALLENGED ENVIRONMENT: INTEGRATING UWB AND IMU TECHNOLOGIES
Ultra-wide band GNSS-denied positioning UXO mapping
2017/7/12
Acquiring geospatial data in GNSS compromised environments remains a problem in mapping and positioning in general. Urban canyons, heavily vegetated areas, indoor environments represent different leve...
MONITORING HIGH-FREQUENCY OCEAN SIGNALS USING LOW-COST GNSS/IMU BUOYS
Global Navigation Satellite System (GNSS) buoys Inertial Measurement Unit (IMU) tide gauge
2016/12/1
In oceans there are different ocean signals covering the multi-frequencies including tsunami, meteotsunami, storm surge, as sea level change, and currents. These signals have the direct and significan...
INTRODUCTION OF A PHOTOGRAMMETRIC CAMERA SYSTEM FOR RPAS WITH HIGHLY ACCURATE GNSS/IMU INFORMATION FOR STANDARDIZED WORKFLOWS
UAV RPAS Modular Airborne Camera System MACS Metric Camera Direct Georeference RTK-GNSS
2016/3/25
In this paper we present the evaluation of DLR’s modular airborne camera system MACS-Micro for remotely piloted aircraft system (RPAS) with a maximum takeoff weight (MTOW) less than 5kg. The main focu...
A Software Package to Check the Aerial Frames Blocks from GPS/IMU-Assisted Cameras
Aerial photogrammetry Visualization Digital photogrammetry
2015/12/3
Verifying the correspondence between planned flight lines and actual ones just after the mission is critical to speed up internal quality controls as well as the external ones performed by the custome...
Applying Integrated DGPS/IMU Systems to Stereo Plotting
Photogrammetry Remote Sensing Mapping Application Integration
2015/12/2
During recent years direct sensor orientation with GPS and IMU has gained popularity. The system can directly get exterior orientation elements without using ground control points. To achieve the full...
Establishing a Camera-IMU Calibration Procedure for the Spanish National Ortophoto Program
Accuracy Calibration Camera GPS/INS Direct Georeferencing Orientation Orthoimage
2015/11/23
Since 2004 the Spanish National and Regional Governments are producing aerial orthophoto coverages renewed every two years.The Castilla y León region has introduced some modifications in the productio...
An Effective Methodology of Using GPS/IMU Data for Automatic Point Transformation in Aerial Triangulation
digital photogrammetry matching GPS/INS reliability performance method
2015/11/23
In this paper, an efficient methodology using GPS/IMU data for automatic point transformation in aerial triangulation is presented.It firstly performs matching within each strip. For point transformat...
BUILDING 3D MAPS WITH SEMANTIC ELEMENTS INTEGRATING 2D LASER, STEREO VISION AND IMU ON A MOBILE ROBOT
3D mapping sensor integration autonomous robots
2015/10/8
Building 3D models is important in many applications, ranging from virtual visits of historical buildings, game and entertainment, to
risk analysis in partially collapsed buildings. This task is perf...
Imu/dgps-supported automatic image measuring
IMU/DGPS point feature extraction initial parallax
2015/8/20
Automatic image measuring is to identify and to measure conjugate points in two or more overlapping photographs automatically. In
digital photogrammetry, this process is done by image matching. A str...
Integration of A Terrestrial Laser Scanner With Gps/imu Orientation Sensors
Integration Orientation GPS/IMU
2015/7/15
Direct orientation of laser systems has been widely used for airborne laser sensors but not with the terrestrial laser systems. The usual
way to operate a terrestrial laser is by scanning a scene whi...
Development of Digital Surface Model and Feature Extraction By Integrating Laser Scanner and Ccd Sensor With Imu
Laser Scanning CCD IMU
2015/7/15
Three dimension data are in great demand for the various applications such as 3D GIS, navigation, digital archive, simulation,
computer games, and so on. In order to represent space in details, it is...
FIRST EXPERIENCE OF IMU/DGPS–SUPPORTED PHOTOGRAMMETRY IN CHINA
Differential Global Position System (DGPS)
2015/6/1
People’s Republic of China is one of the most rapidly developing countries in the world today. There is a great demand on highly actual
and accurate spatial information of the whole country, especia...
EXPERIMENTAL TESTS ON THE BENEFITS OF A MORE RIGOROUS MODEL IN IMU/GPS SYSTEM CALIBRATION
Orientation System Calibration GPS/INS Integration Adjustment
2015/5/29
System calibration is required in integrated IMU/GPS systems to account for the spatial offset and misalignment between IMU, GPS and camera frames; synchronization is to be maintained, to predict IMU/...