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	An Iterative BRDF/NDVI Inversion Algorithm Based on A Posteriori Variance Estimation of Observation Errors 期刊论文 OAI收割 IEEE Transactions on Geoscience and Remote Sensing, 2016, 卷号: 54, 期号: 11, 页码: 6481-6496 作者: Zeng, Yelu; Li, Jing; Liu, Qinhuo; Huete, Alfredo R.; Xu, Baodong 收藏 \| 浏览/下载：37/0 \| 提交时间：2017/04/24 LEAF-AREA INDEX LAND-SURFACE TEMPERATURE FOREST REFLECTANCE MODEL CANOPY REFLECTANCE DIRECTIONAL REFLECTANCE CORRECT ESTIMATION RETRIEVAL IMPACT INFORMATION SIMULATION
	Seasonal variation of leaf area index (LAI) over paddy rice fields in NE China: Intercomparison of destructive sampling, LAI-2200, digital hemispherical photography (DHP), and AccuPAR methods SCI/SSCI论文 OAI收割 2014 Fang H. L.; Li W. J.; Wei S. S.; Jiang C. Y. 收藏 \| 浏览/下载：25/0 \| 提交时间：2014/12/24 Leaf area index (LAI) Plant area index (PAI) Rice Destructive sampling Gap fraction Clumping index boreal forests time-series canopy architecture correct estimation deciduous forests resolution lai modis lai suns beam products validation
	Research on image restoration of Roll-Swing imaging seeker (EI CONFERENCE) 会议论文 OAI收割 3rd IEEE International Conference on Advanced Computer Control, ICACC 2011, January 18, 2011 - January 20, 2011, Harbin, China 作者: Zhang H.; Zhang H. 收藏 \| 浏览/下载：28/0 \| 提交时间：2013/03/25 To achieve a correct image receiving for Roll-Swing imaging seeker the mechanism and imaging process is analyzed. The causes of image rotation are discussed. The influence of the frame encoders' precision on imaging de-rotation quality is analyzed. The Roll-Swing imaging seeker is designed for high-speed aerocraft thus the received images are greatly degraded due to atmospheric turbulence. A new method of image restoration is proposed for turbulence-degraded images in this paper. The method is to get point spread function (PSF) based on the estimation of optical transfer function (OTF) according to the optical system design simulation. Finally to obtain the restored image constrained least squares filtering is used with the known PSF. The experiment results indicate that the new restoration method has a favorable effect to satisfy requirement of the automatic target recognition. 2011 IEEE.
	Affine object recognition and affine parameters estimation based on covariant matrix (EI CONFERENCE) 会议论文 OAI收割 2008 International Symposium on Information Science and Engineering, ISISE 2008, December 20, 2008 - December 22, 2008, Shanghai, China 作者: 收藏 \| 浏览/下载：138/0 \| 提交时间：2013/03/25 A new method of affine object recognition and affine parameters estimation is presented. For a real-time image and a group of templates in addition firstly on the basis of correct recognition we segment the object regions in them and compute their covariant matrices. Secondly it can estimate affine parameters exactly normalize the ellipse regions defined by covariant matrices to circle regions to get rotational invariants and the estimated error is within 3%. 2008 IEEE. and compute the similarity function value between rotational invariants of real-time image and every template respectively. Then compare the values with threshold set in advance if more than one value is larger than threshold take the corresponding templates as candidates and compute affine matrix between real-time image and every candidate. Finally transform the realtime image with every affine matrix and match the result with corresponding candidate by classical matching methods. Experimental results show that the presented method is robust to illumination with low computational complexity and it can realize recognition of different affine objects