搜索结果: 1-15 共查到“测绘科学技术 CCD”相关记录48条 . 查询时间(0.115 秒)
上海天文台利用独创的旋转漂移扫描CCD技术开展近地小行星精密定位和定轨（图）
行星 精密定位 观测
2024/5/24
中国科学院上海天文台（以下简称上海天文台）与乌克兰尼古拉耶夫天文台的联合研究团队利用独创的旋转漂移扫描CCD技术开展了近地小行星的常规观测，实现对近地小行星的精密定位和定轨。
STUDY ON THE INFLUENCE OF CCD DETECTOR TEMPERATURE ON THE PERFORMANCE OF THE SPACE REMOTE SENSING CAMERA
Remote Sensing Camera Charge-coupled Device Temperature Signal-to-Noise Ratio Dynamic Range
2018/5/16
The CCD detector is the core device of the space remote sensing camera. The performance of CCD detector greatly affects the performance of the whole remote sensing camera. The temperature of the CCD d...
经过历时三年的努力和两轮流片试验，超大型CCD控制器研制的关键元件之一，CCD控制器偏压及时钟驱动电路ASIC，日前在国家天文台天文光学与红外探测器实验室研制成功，从而使得国家天文台在CCD控制器的研制技术上位居国际先进水平，为我国独立研制超大规模的CCD系统奠定了基础。
随着光学望远镜向更大口径和更大视场发展，相应的CCD探测器的规模需求也提高到了十亿、数十亿像元甚至更大，这给其控制器的研制...
Geometric inflight calibration of the stereoscopic CCD linescanner MOMS-2P
inflight calibration the stereoscopic CCD linescanner MOMS-2P
2016/5/20
This paper describes the geometric inflight calibration of the Modular Op toelect ronic Mult ispectral S canne r MOMS-2P, which
is co ll ect ing digital multispectral and threefold along tra...
LAND COVER CLASSIFICATION IN BEIJING AREA BASED ON CBERS-02B CCD DATA
CBERS-02B CCD Land Cover Classification DTC Accuracy Assessment
2016/3/17
In this paper, we studied the potential of land cover classification using multi-spectral CBERS-02B CCD data. CEBERS-02B is the third of the series earth resource satellite of China. It was launched o...
AUTOMATIC PRECISE GEOMETRIC CORRECTION FOR HJ-CCD IMAGERY
HuanJing(HJ)-CCD imagery Precise geometric correction Image Control Point (ICP) database Automatic image matching Scale Invariant Feature Transform (SIFT) algorithm Template matching method polynomial correction with tiny facet
2016/3/17
Since HuanJing(HJ)-satellite has been sent successfully in September 6, 2008, in china, productions of precise geometric correction are imminently needed. Moreover, the demand for rapidprocessing of r...
THE ELIMINATE INCONSISTENT ALGORITHM AND ENHANCEMENT OF LARGE PLANE ARRAY CCD IMAGES
CCD Image Digital Aerial Photogrammetry Camera Iimage Edge Image Processing Modelling
2015/12/23
Aiming at uneven illumination and low contrast of large plane array CCD images, this paper presents an effective algorithm to extract uneven illumination from images and enhance the contrast by using ...
A Framework of Relative Navigation System for Non-Cooperative Target Using Double-CCD
Navigation Photogrammetry Simulation CCD Non-cooperative target Satellite
2015/12/9
The relative navigation of space non-cooperative target has great important practical value and vast prospect in application. The space non-cooperative target refer to some space flight objects which ...
Near Real Time CCD Array Health Characterization of Cameras onboard IRS
CCD Camera Image IRS Acquisition Remote Sensing
2015/12/3
Satellite captures and then transmits remotely sensed image to the earth station, which is further sent to the processing station. At processing station, it undergoes various types of geometric/radiom...
The Design and Realization of Large Plane Colour CCD Digital Aerial Camera System
Aerial camera Aerial photogrammetry Large CCD-array Colour composition Image fusion Large scale mapping
2015/11/23
On the basis of a size single plane array CCD (SPAC-1), we study and establish a digital aerial photogrammetry camera system, which adopts a “3+1”modular design method, i.e., three ×99 kk×22 kk CCD mo...
CCD信号自适应采样方法的研究和实现
自适应采样 电荷耦合器件 相位监测 遥感相机
2016/8/4
由于受温度变化和器件老化影响,空间遥感相机焦平面CCD信号的相位会发生变化,尤其是在高速应用领域,利用传统方法定标确定并固化的采样点参数不再适用,极大影响了图像信噪比,甚至造成图像不能正常显示。提出了一种针对空间相机焦平面CCD信号采样位置的自适应调整方法,通过实时监测CCD信号的相位变化,计算相应的采样位置调整量,并在线调整了采样时钟的相位,使CCD信号采样位置在其使用寿命期限中不同的温度环境下...
A simulation study for the geometric accuracy testing of airborne linear array ccd cameras
geometric accuracy testing airborne linear array ccd cameras
2015/9/1
Since their first introduction, linear array CCD cameras play an important role in the airborne optical digital sensors market, together with matrix array CCD sensors. The methods and algor ithms to p...
Automated calibration technique for photogrammetric system based on a multi-media projector and a CCD camera
Photogrammetry Calibration Accuracy Multi-media projector Non-contact measurements
2015/8/25
Recently multi-media projectors became commercially available for using in 3D reconstruction application. They have a number of features which make them attractive for using in photogrammetric applica...
Investigating the influence of ionizing radiation on standard CCD cameras and a possible impact on photogrammetric measurements
Photogrammetry CCD Camera Image Radiation Sensor Accuracy Quality
2015/8/24
In the context of high precision metrology tasks in heavy radiated areas questions arose concerning the applicability of digital cameras for photogrammetric purposes under these special conditions. Th...
Development of a CCD camera based reflex goniometer
reflex goniometer etalon gimbal plane parallel shifted laser temperature calibration
2015/8/24
The article describes the development of a reflex goniometer for biaxial angle measurement of a gimbal mounted mirror by means of a CCD camera. After the state of the art the measurement principle and...