A closed form solution to the problem of segmenting multiple 3D motion models was proposed from straight-line optical flow. It introduced the multibody line optical flow constraint (MLOFC), a polynomial equation relat...A closed form solution to the problem of segmenting multiple 3D motion models was proposed from straight-line optical flow. It introduced the multibody line optical flow constraint (MLOFC), a polynomial equation relating motion models and line parameters. The motion models can be obtained analytically as the derivative of the MLOFC at the corresponding line measurement, without knowing the motion model associated with that line. Experiments on real and synthetic sequences were also presented.展开更多
With an emergent funding of 500,000 yuan (60,000 dollars) from the nationalNatural Science Foundation of China (NSFC), scientists from CAS will lead a new research project forSARS control in spatial information proces...With an emergent funding of 500,000 yuan (60,000 dollars) from the nationalNatural Science Foundation of China (NSFC), scientists from CAS will lead a new research project forSARS control in spatial information processing technology. Entitled 'integrated studies on the keytechnologies and methods of spatial information processing for SARS control,' the project will becarried out by a research group of the CAS Institute of Geographic Sciences and Natural ResourcesResearch (IGSNRR) in cooperation of Beijing Center for Disease Control and Prevention.展开更多
In this paper,we investigate the superconvergence property of the numerical solution to a quadratic elliptic control problem by using mixed finite element methods.The state and co-state are approximated by the order k...In this paper,we investigate the superconvergence property of the numerical solution to a quadratic elliptic control problem by using mixed finite element methods.The state and co-state are approximated by the order k=1 Raviart-Thomas mixed finite element spaces and the control variable is approximated by piecewise constant functions.We prove the superconvergence error estimate of h3/2 in L2-norm between the approximated solution and the average L2 projection of the control.Moreover,by the postprocessing technique,a quadratic superconvergence result of the control is derived.展开更多
基金The National Natural Science Foundation of China (No. 60675017) The National Basic Research Program (973) of China (No. 2006CB303103)
文摘A closed form solution to the problem of segmenting multiple 3D motion models was proposed from straight-line optical flow. It introduced the multibody line optical flow constraint (MLOFC), a polynomial equation relating motion models and line parameters. The motion models can be obtained analytically as the derivative of the MLOFC at the corresponding line measurement, without knowing the motion model associated with that line. Experiments on real and synthetic sequences were also presented.
文摘With an emergent funding of 500,000 yuan (60,000 dollars) from the nationalNatural Science Foundation of China (NSFC), scientists from CAS will lead a new research project forSARS control in spatial information processing technology. Entitled 'integrated studies on the keytechnologies and methods of spatial information processing for SARS control,' the project will becarried out by a research group of the CAS Institute of Geographic Sciences and Natural ResourcesResearch (IGSNRR) in cooperation of Beijing Center for Disease Control and Prevention.
基金supported by National Natural Science Foundation of China(Grant No.10971074)Foundation for Talent Introduction of Guangdong Provincial University,Guangdong Province Universities and Colleges Pearl River Scholar Funded Scheme(2008)Specialized Research Fund for the Doctoral Program of Higher Education(Grant No.20114407110009)
文摘In this paper,we investigate the superconvergence property of the numerical solution to a quadratic elliptic control problem by using mixed finite element methods.The state and co-state are approximated by the order k=1 Raviart-Thomas mixed finite element spaces and the control variable is approximated by piecewise constant functions.We prove the superconvergence error estimate of h3/2 in L2-norm between the approximated solution and the average L2 projection of the control.Moreover,by the postprocessing technique,a quadratic superconvergence result of the control is derived.
