Pub Date : 2014-12-01DOI: 10.1109/ICCES.2014.7030963
Karel Szurman, Lukas Miculka, Z. Kotásek
Modern fault tolerant systems implemented into FPGAs integrate very often hardware redundancy together with fault tolerant approaches based on active fault recovery and the system reconfiguration. Space and safety-critical applications are examples of systems where the principles of fault tolerance and recovery techniques have increasing importance. Except of fault-masking behavior and FPGA partial reconfiguration, also the synchronization of reconfigured circuit copy with remaining circuits which are during the recovery process still operating, is an integral part of the recovery process in these systems. The synchronization process is closely related to the system architecture, specific requirements and functionality. Our aim is to propose specific methodology to design and implement the most suitable synchronization procedure for the recovery of target fault tolerant system. In this paper, basic principles of our synchronization methodology are described together with generic architecture for synchronization in fault tolerant systems, which was designed for reconfigurable fault tolerant CAN bus control system. This system and performed experiments are in the paper described as well.
{"title":"Towards a state synchronization methodology for recovery process after partial reconfiguration of fault tolerant systems","authors":"Karel Szurman, Lukas Miculka, Z. Kotásek","doi":"10.1109/ICCES.2014.7030963","DOIUrl":"https://doi.org/10.1109/ICCES.2014.7030963","url":null,"abstract":"Modern fault tolerant systems implemented into FPGAs integrate very often hardware redundancy together with fault tolerant approaches based on active fault recovery and the system reconfiguration. Space and safety-critical applications are examples of systems where the principles of fault tolerance and recovery techniques have increasing importance. Except of fault-masking behavior and FPGA partial reconfiguration, also the synchronization of reconfigured circuit copy with remaining circuits which are during the recovery process still operating, is an integral part of the recovery process in these systems. The synchronization process is closely related to the system architecture, specific requirements and functionality. Our aim is to propose specific methodology to design and implement the most suitable synchronization procedure for the recovery of target fault tolerant system. In this paper, basic principles of our synchronization methodology are described together with generic architecture for synchronization in fault tolerant systems, which was designed for reconfigurable fault tolerant CAN bus control system. This system and performed experiments are in the paper described as well.","PeriodicalId":339697,"journal":{"name":"2014 9th International Conference on Computer Engineering & Systems (ICCES)","volume":"33 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129542388","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
K. Amin, Mohamed Abd Elfattah, A. Hassanien, G. Schaefer
In this paper, an improved thresholding approach based on neutrosophic sets (NSs) and adaptive thresholding is proposed. This is applied to degraded historical documents imaging and its performance evaluated. The input RGB image is transformed into the NS domain, which is described using three subsets, namely the percentage of truth in a subset, the percentage of indeterminacy in a subset, and the percentage of falsity in a subset. The entropy in NS is employed to evaluate the indeterminacy with a λ-mean operation used to minimize indeterminacy. Finally, the historical document image is binarized using an adaptive thresholding technique. Experimental results demonstrate that the proposed approach is able to select appropriate image thresholds automatically and effectively, while it is shown to be less sensitive to noise and to perform better compared with other binarization algorithms.
{"title":"A binarization algorithm for historical arabic manuscript images using a neutrosophic approach","authors":"K. Amin, Mohamed Abd Elfattah, A. Hassanien, G. Schaefer","doi":"10.5281/ZENODO.22997","DOIUrl":"https://doi.org/10.5281/ZENODO.22997","url":null,"abstract":"In this paper, an improved thresholding approach based on neutrosophic sets (NSs) and adaptive thresholding is proposed. This is applied to degraded historical documents imaging and its performance evaluated. The input RGB image is transformed into the NS domain, which is described using three subsets, namely the percentage of truth in a subset, the percentage of indeterminacy in a subset, and the percentage of falsity in a subset. The entropy in NS is employed to evaluate the indeterminacy with a λ-mean operation used to minimize indeterminacy. Finally, the historical document image is binarized using an adaptive thresholding technique. Experimental results demonstrate that the proposed approach is able to select appropriate image thresholds automatically and effectively, while it is shown to be less sensitive to noise and to perform better compared with other binarization algorithms.","PeriodicalId":339697,"journal":{"name":"2014 9th International Conference on Computer Engineering & Systems (ICCES)","volume":"6 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-08-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131138460","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
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