A discussion is presented to gain the relationship between the original image and the reconstructed image while errors are mixed with the DCT data of the original image for the transmission. We can find the wrong reco...A discussion is presented to gain the relationship between the original image and the reconstructed image while errors are mixed with the DCT data of the original image for the transmission. We can find the wrong reconstructed blocks, locate blocks, which are most likely to contain errors and eliminate errors. The method needs no channel error protection, needs no verifiable bits, and needs no extra bandwidth. Experimental results are provided in the end.展开更多
An algorithm applied to a real-time extraction image of vehicle is introduced. The algorithm include an image processing with a binarzation method, image grab for a vehicle with high speed, character isolator one by o...An algorithm applied to a real-time extraction image of vehicle is introduced. The algorithm include an image processing with a binarzation method, image grab for a vehicle with high speed, character isolator one by one, and neural network algorithm. The techniques include vehicles sensing, image garb control, vehicle license location, lighting and optic character recognition. The system is much more robust and faster than the traditional thresholding method.展开更多
In this paper, we proposed a registration method by combining the morphological component analysis(MCA) and scale-invariant feature transform(SIFT) algorithm. This method uses the perception dictionaries,and combines ...In this paper, we proposed a registration method by combining the morphological component analysis(MCA) and scale-invariant feature transform(SIFT) algorithm. This method uses the perception dictionaries,and combines the Basis-Pursuit algorithm and the Total-Variation regularization scheme to extract the cartoon part containing basic geometrical information from the original image, and is stable and unsusceptible to noise interference. Then a smaller number of the distinctive key points will be obtained by using the SIFT algorithm based on the cartoon part of the original image. Matching the key points by the constrained Euclidean distance,we will obtain a more correct and robust matching result. The experimental results show that the geometrical transform parameters inferred by the matched key points based on MCA+SIFT registration method are more exact than the ones based on the direct SIFT algorithm.展开更多
In MRI (Magnetic Resonance Imaging), a crucial role of gradient coils is to image organism, meanwhile the inductance of the coils determines the speed of imaging. So it is of great importance to optimize designs of th...In MRI (Magnetic Resonance Imaging), a crucial role of gradient coils is to image organism, meanwhile the inductance of the coils determines the speed of imaging. So it is of great importance to optimize designs of the gradient coils. The target field approach is an effective method to design the gradient coils. Having applied this method and performing many numerical tests, we achieved the designs of thex ?,y ?,z ? in which the inductance and resistance of the coils also meet the requirements.展开更多
The unemployment rate is a key indicator of labor market and economic performance. Based on a unique survey, we estimate the unemployment rate at 13.44percent in 30 provincial capital cities in China in 2007, which is...The unemployment rate is a key indicator of labor market and economic performance. Based on a unique survey, we estimate the unemployment rate at 13.44percent in 30 provincial capital cities in China in 2007, which is well above the officially announced registered unemployment rate. The discrepancy results from inaccuracy in the calculation of registered unemployment. The discrepancy is not stably evolving across regions or over the years, making it difficult to recover the true unemployment rate using a simple multiplier approach. We further investigate the sources of the discrepancy by examining the determinants of unemployment registration. It is evident that participation in certain public activities, which would facilitate the spread of knowledge related to job-searching and unemployment registration, encouraged unemployment registration. Social attention to government antiunemployment programs also encouraged unemployment registration. These findings confirm the behavioral hypothesis that incomplete knowledge and limited attention can cause deviation from optimal choice. The policy implications of the findings of the study are discussed.展开更多
文摘A discussion is presented to gain the relationship between the original image and the reconstructed image while errors are mixed with the DCT data of the original image for the transmission. We can find the wrong reconstructed blocks, locate blocks, which are most likely to contain errors and eliminate errors. The method needs no channel error protection, needs no verifiable bits, and needs no extra bandwidth. Experimental results are provided in the end.
基金Supported by the Emphases Science and Technology Tackle Key Problem of Wuhan!(98320 1005)
文摘An algorithm applied to a real-time extraction image of vehicle is introduced. The algorithm include an image processing with a binarzation method, image grab for a vehicle with high speed, character isolator one by one, and neural network algorithm. The techniques include vehicles sensing, image garb control, vehicle license location, lighting and optic character recognition. The system is much more robust and faster than the traditional thresholding method.
基金the National Science Foundation of China(No.61471185)the Natural Science Foundation of Shandong Province(No.ZR2016FM21)+1 种基金Shandong Province Science and Technology Plan Project(No.2015GSF116001)Yantai City Key Research and Development Plan Project(Nos.2014ZH157 and2016ZH057)
文摘In this paper, we proposed a registration method by combining the morphological component analysis(MCA) and scale-invariant feature transform(SIFT) algorithm. This method uses the perception dictionaries,and combines the Basis-Pursuit algorithm and the Total-Variation regularization scheme to extract the cartoon part containing basic geometrical information from the original image, and is stable and unsusceptible to noise interference. Then a smaller number of the distinctive key points will be obtained by using the SIFT algorithm based on the cartoon part of the original image. Matching the key points by the constrained Euclidean distance,we will obtain a more correct and robust matching result. The experimental results show that the geometrical transform parameters inferred by the matched key points based on MCA+SIFT registration method are more exact than the ones based on the direct SIFT algorithm.
文摘In MRI (Magnetic Resonance Imaging), a crucial role of gradient coils is to image organism, meanwhile the inductance of the coils determines the speed of imaging. So it is of great importance to optimize designs of the gradient coils. The target field approach is an effective method to design the gradient coils. Having applied this method and performing many numerical tests, we achieved the designs of thex ?,y ?,z ? in which the inductance and resistance of the coils also meet the requirements.
基金supported by the Cooperation Project of Beijing Education Commission and Renmin University of China("Upgrading Innovation of Beijing,Create New Engine for Bohai-RimRegion's Economy")the Major Project of National Social Science Foundation of China("Research on National Income Distribution and Reform for the ‘12th-Five' (2010-2013) Plan(10&ZD007)")
文摘The unemployment rate is a key indicator of labor market and economic performance. Based on a unique survey, we estimate the unemployment rate at 13.44percent in 30 provincial capital cities in China in 2007, which is well above the officially announced registered unemployment rate. The discrepancy results from inaccuracy in the calculation of registered unemployment. The discrepancy is not stably evolving across regions or over the years, making it difficult to recover the true unemployment rate using a simple multiplier approach. We further investigate the sources of the discrepancy by examining the determinants of unemployment registration. It is evident that participation in certain public activities, which would facilitate the spread of knowledge related to job-searching and unemployment registration, encouraged unemployment registration. Social attention to government antiunemployment programs also encouraged unemployment registration. These findings confirm the behavioral hypothesis that incomplete knowledge and limited attention can cause deviation from optimal choice. The policy implications of the findings of the study are discussed.
