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Modified simultaneous iterative reconstruction technique for fast, high-quality CT reconstruction
Bappy, D.M.,Jeon, Insu IET 2017 IET image processing Vol.11 No.9
<P>Recent advances in computational power have made it possible to use iterative reconstruction (IR) algorithms in clinics for computed tomographic (CT) imaging. Many researchers prefer IR methods to analytical methods because they reduce radiation, image noise, and artefacts. Simultaneous Iterative Reconstruction Technique (SIRT) reduces the number of views needed for CT reconstruction. However, reconstructed images include ray artefacts that can make diagnosis difficult. This study proposes a modified IR algorithm for fast, high-quality CT reconstruction. The modified method incorporates geometric non-linear diffusion in the reconstruction estimate to minimise ray artefacts. This method also converges the algorithms into global minima much faster than other methods, using the minimum number of iterations. To meet the high computational demand of improved IR algorithms, a graphics processing unit was used in this study. The authors expect that the proposed technique can be used to reconstruct high-quality CT images faster and with minimal iterations.</P>
Artificial Intelligence IoT Architecture Based on Microservices
Yeonggwang Kim,D M BAPPY,Jinsul Kim 한국디지털콘텐츠학회 2021 The Journal of Contents Computing Vol.3 No.1
As Internet of Things (IoT) combined with Artificial Intelligence (AI) continues to develop and evolve, the size and structure of a single application becomes much larger and more complex. This reduces scalability, scalability, and maintenance. In response to these challenges, Microservice architectures have been introduced into AI IoT applications due to their flexibility, lightness, and loose combination. However, the AI IoT framework of existing microservices is very limited in scope because it focuses primarily on specific domains. In this paper, we propose a general microservice system architecture for AI IoT applications. This architecture is highly scalable and highly maintained. Introduce system design and associated microservices and emphasize core services and device communication from service to physical. It supports interoperability and has greater capacity to accommodate heterogeneous objects. The architecture also makes it easy to achieve more application integration such as automation, intelligence, urban disaster response services, and big data.
Taeho Kim,Bappi Paul,Dong-il Kwon,Sung-Chan Nam,Changbum Jo 대한화학회 2021 Bulletin of the Korean Chemical Society Vol.42 No.2
Relationship between mesoporosity and hydrogeneration in catalytic decomposition of methane (CDM) reaction.