Results 221 to 230 of about 354,488 (266)

MUlti information based Ground Control Points selection method

2011 IEEE International Geoscience and Remote Sensing Symposium, 2011
Ground Control Points (GCPs) are one of the most important data used in many fields of Remote Sensing. The number and distribution of GCPs are always the key factors for the success of some researches. A GCPs selection method by integrating the three dimensional spatial information (i.e.
Yanfeng Gu, Zhimin Cao, Ye Zhang 0008, Xiangrong Zhang   +3 more
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Quality assessment of TerraSAR-X derived ground control points

2012 IEEE International Geoscience and Remote Sensing Symposium, 2012
The orbit accuracy of TerraSAR-X and TanDEM-X radar satellites is in the range of centimeters. This information is useful to carry out high precision surveying from space. The objective of this study is the quality assessment of ground control points (GCPs) retrieved from TerraSAR-X and TanDEM-X imagery.
Wolfgang Koppe, Ronny Wenzel, Simon D. Hennig, Jürgen Janoth, Philipp Hummel, Hannes Raggam   +5 more
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Global stereo matching leveraged by sparse ground control points

CVPR 2011, 2011
We present a novel global stereo model that makes use of constraints from points with known depths, i.e., the Ground Control Points (GCPs) as referred to in stereo literature. Our formulation explicitly models the influences of GCPs in a Markov Random Field.
Liang Wang 0002, Ruigang Yang
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Control of Ground Interaction at the Zero-Moment Point for Dynamic Control of Humanoid Robots

Proceedings of the 2005 IEEE International Conference on Robotics and Automation, 2006
In order for stable control of humanoid robots, ground contact forces should be properly controlled for compensating the dynamic disturbances caused by unactuated body movement. The stability in the sense of the zero-moment point (ZMP), guaranteeing secure contacts during control, is a necessary condition for stable motion control.
Jonghoon Park, Youngil Youm, Wan Kyun Chung   +2 more
openaire   +1 more source

High-Accuracy Stereo Matching Based on Adaptive Ground Control Points

IEEE Transactions on Image Processing, 2015
This paper proposes a novel high-accuracy stereo matching scheme based on adaptive ground control points (AdaptGCP). Different from traditional fixed GCP-based methods, we consider color dissimilarity, spatial relation, and the pixel-matching reliability to select GCP adaptively in each local support window.
Chenbo Shi, Guijin Wang, Xuanwu Yin, Xiaokang Pei, Bei He, Xinggang Lin   +5 more
openaire   +2 more sources

Ground-target tracking control of Earth-pointing satellites

AIAA Guidance, Navigation, and Control Conference and Exhibit, 2000
Many on-board payloads for monitoring, communication and Earth imaging have extensive requirements for target tracking maneuvers in many space missions. A quaternion-bas ed PID feedback control for ground-target tracking of a three-axis stabilized Earth-pointing satellite is systematically analyzed.
Xiaojiang Chen, Willem Steyn, Yoshi Hashida   +2 more
openaire   +1 more source

Navigation of satellite measurements without ground control points

International Journal of Remote Sensing, 1993
Abstract The minimum of information on satellite dynamics (a part of celestial mechanics) which is needed to navigate operational polar orbiting meteorological satellites either for direct or inverse referencing without ground control points, is presented. This software is tailored to the orbit information available.
Straka, J., Klokocnik, J., Grassl, H.
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Boresight Calibration of Airborne LiDAR System Without Ground Control Points

IEEE Geoscience and Remote Sensing Letters, 2012
This letter proposes a new method for boresight misalignment calibration of the charge-coupled device (CCD) camera which is one component of an airborne light detection and ranging (LiDAR) system without ground control points (GCPs). In the calibration, tie points in overlapping areas are first selected, and then, a multibaseline forward intersection ...
Siying Chen, Hongchao Ma, Yinchao Zhang, Liang Zhong, Jixian Xu, He Chen 0005   +5 more
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LaForeT Ground control points and Landscape borders

Terrestrial ground truthing of land use has been carried out between 2016 and 2019. Land cover types classification is identical to mapping of land use types.
Ferrer Velasco, Rubén, Lippe, Melvin, Günter, Sven, Jany, Christina, Mfuni, Tiza, Rebuyas, Rina Shianne, Tamayo, Fabian, Fischer, Richard, Eguiguren, Paul, Kazungu, Moses, Nansikombi, Hellen, Ojeda-Luna, Tatiana, Wiebe, Pia   +12 more
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USING CORNER REFLECTORS AS GROUND CONTROL POINTS IN GROUND BASED SAR INTERFEROMETRY

SGEM International Multidisciplinary Scientific GeoConference EXPO Proceedings, 2017
Ground based radar interferometry is one of the currently used, remote measurement technologies allowing to determine the displacements of the monitored area. This technology use a radar operating in the microwave band, which emits a beam in the direction of the monitored area, and then after reflection processes and registers it in the form of radar ...
openaire   +2 more sources