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Academy of Mathematics and Systems Science, CAS Colloquia & Seminars：Geometry and recovery of spectral-sparse signals
频谱稀疏信号 几何 恢复
2023/4/26
Spectral-sparse signals are those sparse in the Fourier domain and are very common in wireless communications, radar, sonar, medical imaging and other applications. Their recovery from noisy, limited ...
Likelihood-based classification of high resolution images to generate the initial topology and geometry of land cover segments
Likelihood-based classification Maximum likelihood classification Geo-information systems
2016/5/20
This paper’s origin is to reach for a way for automatic initiation of shape hypothesis for Model Based Image Analysis (MBIA) in the specific case of agricultural fields. A solution is to start with lo...
Research on Precise Geometry Model of Synthetic Aperture Radar Interferometry
InSAR Geometry Model DEM Correction GCP
2015/11/20
InSAR, a new branch of Remote Sensing technology, has developed remarkably in recent years. Many researches have showed that high precision is always one of the most important goals in its development...
GLOBAL UNCERTAINTY IN EPIPOLAR GEOMETRY VIA FULLY AND PARTIALLY DATA-DRIVEN SAMPLING
Relative orientation Stucture from Motion Epipolar Geometry
2015/8/14
In this paper we explore the relative efficiency of various data-driven sampling techniques for estimating the epipolar geometry and its global uncertainty. We explore standard fully data-driven...
Ionospheric Threat Mitigation by Geometry Screening in Ground-Based Augmentation Systems
Ionospheric Geometry Screening Ground-Based Augmentation Systems
2015/6/24
Large spatial variations in ionospheric delay of Global Navigation Satellite System signals observed during severe ionospheric storms pose potential threats to the integrity of the Ground-Based Augmen...
A Study of Geometry and Commercial Off-The-Shelf (COTS) Antennas for Controlled Reception Pattern Antenna (CRPA) Arrays
Geometry Commercial COTS Antennas Reception Pattern Antenna (CRPA) Arrays
2015/6/24
Controlled Reception Pattern Antenna array (CRPA) is an effective approach for rejecting interference and enhancing the received GNSS signal power.Conventionally, the antenna array used for CRPA is de...
Robust extraction of image correspondences exploiting the image scene geometry and approximate camera orientation
IBM - Bundle adjustment - SIFT - 3D image - spanning tree
2014/4/25
Image-based modeling techniques are an important tool for producing 3D models in a practical and cost effective manner. Accurate
image-based models can be created as long as one can retrieve precise...