A blind separation algorithm was proposed for the type of permuted alias images with morphological diversity in this paper. Firstly, permuted alias image mode in sparse domain was presented and separation scheme based...
详细信息
To deal with interpolation permuted alias image, a complete blind separation method is proposed in this paper. Space domain was selected as characteristic domain, the permuted alias image was divided into sub-blocks w...
详细信息
To deal with interpolation permuted alias image, a complete blind separation method is proposed in this paper. Space domain was selected as characteristic domain, the permuted alias image was divided into sub-blocks which was processed by finite-difference. Then, each of the processed sub-blocks was assigned a threshold by detected the features between the pixels and all the thresholds formed a threshold vector. The differential evolution was then performed to obtain the optimal threshold vector for thresholding the differential image into binary one. The permuting image can be separated from the permuted image by doing a dot products between the source image and binary image. The experimental results demonstrate that, compared with thresholding approach, this algorithm indicates a stronger robustness and can get a better performance for various interpolation methods.
Mobile devices are prevalently used for processing personal private data and sometimes collecting evidence of social injustice or political oppression. The device owners may always feel reluctant to expose this type o...
详细信息
In this work, a new blind separation algorithm for permuted alias image based on dictionary learning is proposed according to a type of permuted alias image with noise diversity. Sparse representation of permuted alia...
详细信息
In this paper,we present the service-oriented infrastructure within the Wide Area Grid project that was carried out within the Working Group on Information Systems and Services of the Committee on Earth Observation **...
详细信息
In this paper,we present the service-oriented infrastructure within the Wide Area Grid project that was carried out within the Working Group on Information Systems and Services of the Committee on Earth Observation *** developed infrastructure integrates services and computational resources of several regional and national Grid systems:Ukrainian Academician Grid(with satellite data processing Grid segment,UASpaceGrid)and Grid system at the center on Earth Observation and Digital Earth of Chinese Academy of *** study focuses on integrating geo-information services on flood mapping provided by Ukrainian and Chinese entities to benefit from information acquired from multiple *** also describe services for workflow automation and management in Grid environment and provide an example of workflow automation for generating flood maps from optical and synthetic-aperture radar satellite *** also discuss issues of enabling trust for the infrastructure using certificates and reputation-based *** of utilizing the developed infrastructure for operational flood mapping in Ukraine and China are given as well.
Coordination and cooperation are the core problems of team CGA(Computer Generated Actors) research, while task allocation is the basis for the coordination and cooperation of team CGA. For the complex tasks which can ...
详细信息
Coordination and cooperation are the core problems of team CGA(Computer Generated Actors) research, while task allocation is the basis for the coordination and cooperation of team CGA. For the complex tasks which can dynamically be added to environment with time constraints, a task allocation model based on game theory is proposed, which has at least a pure Nash equilibrium. A task allocation method is given, in which CGA chooses its actions based on its local information owned, and uses fictitious play learning method on behavior coordination to ensure that CGA learns a strict pure strategy Nash Equilibrium quickly. Simulation results show that this method is as effective as methods of Chapman and Liu.
Usually, it is difficult to determine the weight distribution of an irreducible cyclic code. In this paper, we discuss the case that an irreducible cyclic code has the maximal number of distinct nonzero weights and gi...
详细信息
ISBN:
(纸本)9781849198431
Usually, it is difficult to determine the weight distribution of an irreducible cyclic code. In this paper, we discuss the case that an irreducible cyclic code has the maximal number of distinct nonzero weights and give a necessary and sufficient condition. In this case, we also obtain a divisible property for the weight of a codeword. Further, we present a necessary and sufficient condition for an irreducible cyclic code with only one nonzero weight. Finally, we determine the weight distribution of an irreducible cyclic code for some cases.
Feature selection is viewed as an important preprocessing step for pattern recognition, machine learning and data mining. Considering a consistency measure introduced in rough sets, the problem of feature selection ai...
详细信息
Collaborative filtering is the most used personalized recommendation technology. However, the traditional collaborative filtering faces the cold start problem and data sparsity, which deteriorates user experience and ...
详细信息
暂无评论