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基于FPDE的红外与可见光图像融合算法 被引量:21
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作者 高雪琴 刘刚 +2 位作者 肖刚 BAVIRISETTI durga prasad 史凯磊 《自动化学报》 EI CSCD 北大核心 2020年第4期796-804,共9页
针对传统红外与可见光图像融合算法中存在的细节信息不够丰富,边缘信息保留不够充分等问题,文中提出了一种基于四阶偏微分方程(Fourth-order partial differential equation, FPDE)的改进的图像融合算法.算法首先采用FPDE将已配准的红... 针对传统红外与可见光图像融合算法中存在的细节信息不够丰富,边缘信息保留不够充分等问题,文中提出了一种基于四阶偏微分方程(Fourth-order partial differential equation, FPDE)的改进的图像融合算法.算法首先采用FPDE将已配准的红外与可见光图像进行分解,得到高频分量和低频分量;然后,对高频分量采用基于主成分分析(Principal component analysis, PCA)的融合规则来得到细节图像,对低频分量采用基于期望值最大(Expectation maximization, EM)的融合规则来得到近似图像;最后,通过组合最终的高频分量和低频分量来重构得到最终的融合结果.实验是建立在标准的融合数据集上进行的,并与传统的和最近的融合方法进行比较,结果证明所提方法得到的融合图像比现有的融合方法能有效地综合红外与可见光图像中的重要信息,有更好的视觉效果. 展开更多
关键词 图像融合 四阶偏微分方程 期望值最大 主成分分析 红外与可见光图像
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Cloud-Enabled E-Governance Framework for Citizen Centric Services 被引量:1
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作者 Jara Muda Sisay Tumsa +1 位作者 Amin Tuni durga prasad Sharma 《Journal of Computer and Communications》 2020年第7期63-78,共16页
In the modern arena, the Information and Communication Technologies (ICTs) have been playing a vital role in every walks of our day to day life. In order to enhance the ICT capacity and align with the global technolog... In the modern arena, the Information and Communication Technologies (ICTs) have been playing a vital role in every walks of our day to day life. In order to enhance the ICT capacity and align with the global technology transformations, the developing countries have started introducing the computerization and automation processes at different levels of the governments. The several research studies revealed that the existing legacy of governance system and their services in current state have several issues and challenges in terms of timeliness, cost of services, delay in service delivery, time-bound availability of services (24/7/365), inefficiency services, ease of service and discomforts, poor service collaboration, absence of responsiveness, and limited security of sensitive information/documents. A significant question is still unanswered that how to bring the Citizens and Government bodies closer for alleviating the aforementioned issues and challenges of existing government system services. This research paper aims to investigate the issues and challenges in the current status of Governance and partial E-Governance systems which encompass the computerization or automation process. The research designs a cloud framework for effective delivery of citizen centric services in general and Ethiopia as a specific case study. After rigorous analysis of prior research efforts, along with primary survey and interview, it was clearly observed that cloud computing can be an alternative instrumental for significant transformation of governmental service delivery. The research paper used a mix of exploratory and constructive research design and methodology with qualitative & quantitative data analysis approach. Finally, a Cloud Based E-Governance (CBEG) Framework is designed for the delivery of Ethiopian Citizen Centric Services. The validation, evaluation and acceptance test of the framework proves that the revealed knowledge can provide a significant transformation towards the betterment of the E Governance Services Del 展开更多
关键词 E-GOVERNANCE FRAMEWORK Cloud Computing Citizen Centric Hybrid Cloud
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