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INVESTIGATIONS ON SYSTEM CALIBRATION OF GPS/IMU AND CAMERA FOR DIRECT GEOREFERENCING
Aerial Triangulation Calibration
2015/3/24
An inevitable task before direct georeferencing can be performed is the calibration of the GPS/IMU system and the imaging sensor.
The permanent calibration fields for large- and medium-scale (1:3 30...
TRIANGULATION OF LH SYSTEMS’ ADS40 IMAGERY USING ORIMA GPS/IMU
Sensor Digital Three-Line, Aerial
2015/3/24
The paper describes the mathematical model used for the triangulation of the ADS40. The ADS40 Airborne Digital Sensor is LH
Systems’ multi-line scanner (Röser, 2000; Sandau, 2000). It is based ...
Combining MEMS-based IMU data and vision-based trajectory estimation
Positioning and Tracking Vision-based trajectory Motion estimation IMU Data fusion
2014/7/23
This paper presents an efficient location tracking algorithm that integrates vision-based motion estimation and IMU data. Orientation and translation parameters of the mobile device are estimated from...
AUTOMATED BLUR DETECTION AND REMOVAL IN AIRBORNE IMAGING SYSTEMS USING IMU DATA
Blur Detection Blur Removal Inertial Measurement Unit Automated Quality Control
2014/4/25
Images acquired by airborne sensors exhibit blur due to turbulent motion experienced by the aircraft. Significant amount of blur renders the images unusable for subsequent visual/automated analysis, r...
REQUEST ANALYSIS OF DGPS/IMU ON THE AIR-BORNE INSAR SYSTEM
airborne SAR IMU/DGPS attitude compensation motivation compensation DEM generation
2014/4/25
The DGPS/IMU can measure position and velocity extremely high, and it is widely used in air-borne InSAR system. The passage based on the DGPS/IMU's action in the airborne InSAR system, makes sure the ...
车载GPS/IMU/LS激光成像系统外方位元素的动态标定
车载激光成像系统 外方位元素 标定 微小转角
2011/7/29
本文研究提出了一种带有微小转角修正的车载激光成像系统外方位元素标定方法。针对全球定位系统
（GPS）、惯性测量单元（IMU）和激光扫描仪（LS）集成的车载激光成像系统（车载移动测绘系统），该方法使用6个微小旋转角参数和6个微小平移参数对传统标定模型参数进行修正。实验数据表明，本文方法可对
IMU/DGPS辅助航空摄影新技术的应用
IMU DGPS 航空摄影测量
2009/11/24
利用IMU/DGPS组合导航技术，可以在航空摄影的同时直接获取像片的外方位元素。试验表明，只要对IMU/DGPS与航摄仪的集成系统误差和漂移误差进行检校和改正，直接获取的像片外方位元素可以用于正射影像的制作和中小比例尺测图。本文首先讨论了IMU/DGPS组合导航技术和IMU/DGPS辅助航空摄影系统的工作原理； 然后，结合甘肃酒泉试验数据，重点分析讨论了IMU/DGPS和航摄仪集成系统的误差及其检...
推导了ADS40航带间外方位元素归一化处理的数学公式，设计了一种描述IMU/DGPS系统误差的数学模型，采用改进的定向片内插模型实现了ADS40影像的区域网平差。试验结果表明，仅需一个地面控制点，IMU/DGPS数据的定位精度就可显著提高，在四角布设地面控制点的情况下，IMU/DGPS数据与ADS40影像的联合平差可得到优于1.5个像素的3维定位精度；构架航线对平差结果的改善作用有限，在作业中采用...
IMU／DGPS辅助航空摄影测量地面测量的实施
IMU／DGPSGPS 辅助空三 基准站 检较场 检查区
2009/8/10
本文以石保沧摄区为例，介绍IMU／DGPS辅助航空摄影测量地面测量的实施方法，描述了每个工序中应注意的问题及最终成果整理时应注意的问题。