A5110200897- Remote Sensing and LiDAR Applications
- Satellite Image Processing and Photogrammetry
- Advanced Measurement and Detection Methods
- Advanced Vision and Imaging
- Advanced Image Processing Techniques
- Image Processing Techniques and Applications
- Soil erosion and sediment transport
- Infrared Target Detection Methodologies
- Retinal Imaging and Analysis
- Retinal Diseases and Treatments
- Color Science and Applications
- Industrial Vision Systems and Defect Detection
- Image and Signal Denoising Methods
- Medical Image Segmentation Techniques
- Soil Geostatistics and Mapping
- Optical measurement and interference techniques
- Surface Roughness and Optical Measurements
- Digital Media Forensic Detection
Yunnan Machinery Research and Design Institute
2024
Tianjin University
2005-2013
This letter presents an effective approach for selection of appropriate terrain modeling methods in forming a digital elevation model (DEM). achieves balance between accuracy and speed. A complexity index is defined to represent terrain's complexity. support vector machine (SVM) classifies surfaces into either complex or moderate based on this associated with the range. The classification result recommends method given data set accordance its required accuracy. Sample from lunar surface are...
This paper presents an image motion model for airborne three-line-array (TLA) push-broom cameras. Both aircraft velocity and attitude instability are taken into account in modeling motion. Effects of pitch, roll, yaw on analyzed based geometric relations designated coordinate systems. The is mathematically modeled by multiplied exposure time. Quantitative analysis to image motion then conducted simulation experiments. results have shown that caused space invariant while by aircraft more...
The spatial information compression and data unbalance of CE-1 three view images, which caused by the three-line-array CCD stereo camera imaging angle gradient variety lunar surface landform, were seriously considered an improved super resolution reconstruction algorithm based on global weighted POCS for remote sensing images was proposed in this paper. coefficients calculated normalizing mean original images. residual error gray scale introduced as constraint sets during iteration which,...
This paper describes a system that detects and categorizes workpieces with random defects on electrodeposits glossy metal surface. The is developed the basis of combination CCD photoelectricity inspection technology, image processing automatic control technology. In system, special illumination apparatus light source diffused designed. Workpieces are automatically selected through measurement enhancement retreatment, gray scale analysis, binaryzation, feature extraction recognition. Hardware...
Positioning accuracy is one of the greatest concerns in space photogrammetry. A method about positioning estimation was put forward this paper, and error analysis developed. According to theory intersection, model photogrammetry based on three-line-array CCD established, formulas precision for imagery without ground control points were deduced form model, primary sources affecting stereophotogrammetry analyzed. Finally, done using simulated data, relation between main which contained...
This paper describes a method to characterizing the digital camera. The nonlinear relationship between RGB signals generated by camera and original image CIEXYZ values was obtained using polynomial regression procedures. reasonable structures of were found for two cameras. better number terms 19, yielding modeling accuracy typically averaging 2.1~2.2 E ∆ units maximally 9.5~10.9 units. experiments results showed that could be used characterize commonly