搜索结果: 1-6 共查到“测绘科学技术 CMOS”相关记录6条 . 查询时间(0.073 秒)
DENOISING ALGORITHM FOR THE PIXEL-RESPONSE NON-UNIFORMITY CORRECTION OF A SCIENTIFIC CMOS UNDER LOW LIGHT CONDITIONS
CMOS Denoising algorithm Pixel-response non-uniformity
2016/7/28
We present a denoising algorithm for the pixel-response non-uniformity correction of a scientific complementary metal–oxide–semiconductor (CMOS) image sensor, which captures images under extremely low...
CMOS IMAGING SENSOR TECHNOLOGY FOR AERIAL MAPPING CAMERAS
Camera Aerial Sensor Photogrammetry Acquisition Orthophoto CCD CMOS
2016/7/4
In June 2015 Leica Geosystems launched the first large format aerial mapping camera using CMOS sensor technology, the Leica DMC III. This paper describes the motivation to change from CCD sensor techn...
为确保航空遥感图像产品相对辐射质量，提出了一种对两通道按列输出CMOS(互补金属氧化物半导体)图像的非均匀性进行校正的方法。以美国仙童公司CMOS探测器CIS2521F为例，通过实验室积分球观测试验研究了暗电流噪声、平均灰度、两通道输出等因素造成的图像非均匀性；然后，基于实验室积分球观测数据，采用两点线性法，校正了由按列放大输出导致的列状条带噪声；接着，通过优化拼接线附近图像灰度差异统计结果，校正...
采用低中频架构设计了一种0.18μm CMOS工艺的GPS/BDS双模可重构接收机射频前端，能在GPS L1模式或BDS B1模式下工作。通过频率自适应电路调整中频滤波器的时间常数,降低其频率不确定度；压控振荡器中加入4位开关电容阵列，以提高频率调谐范围和相位噪声性能；通过硬件复用的方式降低系统功耗。测试结果表明，在1.8 V电源电压下，功耗37.8 mW，电压增益为103 dB，GPS L1和B...
open-source software-operated cmos camera for real-time mapping
Automation Calibration CMOS Close Range Mobile Mapping Real-Time
2015/9/1
Accurate time registration, georeferencing, and instantaneous feature extraction are important challenges for real-time mapping systems. The Geodetic Engineering Laboratory (TOPO) at the EPFL has desi...
GEOMETRIC AND RADIOMETRIC EVALUATION OF THE POTENTIAL OF A HIGH RESOLUTION CMOS -CAMERA
Radiometry Geometry Accuracy
2015/6/1
The progress of digital imaging systems has created manifold opportunities and new applications to close range photogrammetry.
The classical techniques have found significant changes and this seems ...