To improve registration performance of machine vision under complex environment,an improved RANSAC rapid point cloud registration algorithm is presented upon the principle of cross ratio invariability for internal fea...
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ISBN:
(纸本)9781510871076
To improve registration performance of machine vision under complex environment,an improved RANSAC rapid point cloud registration algorithm is presented upon the principle of cross ratio invariability for internal feature points of a registered *** analyzing the model of a registered target,the method can be used to work out the affine matrix between reference point cloud and target point cloud;cross ratio invariability of internal point data is taken as the constraint condition for registration to correct and remove feature points with wrong registration;besides,the time and accuracy of correct registration between a target image and a reference image are taken as the standards for registration effect ***,it is indicated by comparing the algorithm and a traditional registration algorithm SAC-IA+ICP that the algorithm presented in the paper is substantially superior to the traditional registration algorithm,since it shows good robustness in large-scale 3D point cloud registration and significantly improved registration efficiency upon guaranteed precision.
This paper describes the adaptation to a distributed computational setting of a well-scaling parallel algorithm for computing Morse-Smale segmentations based on path compression. Additionally, we extend the algorithm ...
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In this work, we investigate an effective method for showing that functors between categories are left adjoints. The method applies to a large class of categories, namely locally finitely presentable categories, which...
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Uniformity testing is arguably one of the most fundamental distribution testing problems. Given sample access to an unknown distribution p on [n], one must decide if p is uniform or Ε-far from uniform (in total varia...
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Blockchain technology, a decentralized and tamper-resistant framework, has gained significant attention for its potential to enhance trust, transparency, and security in digital interactions. When integrated with the ...
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ISBN:
(数字)9798350367027
ISBN:
(纸本)9798350367034
Blockchain technology, a decentralized and tamper-resistant framework, has gained significant attention for its potential to enhance trust, transparency, and security in digital interactions. When integrated with the Internet of Things (IoT)—a network of interconnected devices that exchange data autonomously—it unlocks new opportunities for secure, scalable, and efficient systems. Selecting the right blockchain platform is crucial to developing robust blockchain-based applications tailored to IoT’s unique demands. This paper provides a comparative study of five leading blockchain platforms: Multichain, Hyperledger Besu, Open Ethereum, Go Ethereum, and Substrate. The evaluation focuses on their adaptability to IoT environments and their ability to implement proof of authentication (PoAh) as a consensus algorithm. By examining key aspects such as scalability, flexibility, interoperability, resource efficiency, and ease of integration, this study aims to identify the most suitable platform for IoT-centric blockchain solutions. The findings highlight the strengths and limitations of each platform, offering practical insights to guide the selection of a blockchain platform optimized for IoT applications and consensus algorithm proof of authentication.
We generalize the generalized Arimoto-Blahut algorithm to a general function defined over Bregman-divergence system. In existing methods, when linear constraints are imposed, each iteration needs to solve a convex min...
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In this paper we focus on utilising blockchain for IoT devices in smart cities to meet the major issues including security, scalability and energy consumption. A permissioned blockchain architecture with a light-weigh...
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ISBN:
(数字)9798350368109
ISBN:
(纸本)9798350368116
In this paper we focus on utilising blockchain for IoT devices in smart cities to meet the major issues including security, scalability and energy consumption. A permissioned blockchain architecture with a light-weight consensus model is discussed for implementing a Decentralized and Secure IoT Internet. It encompasses data gathering from different IoT devices, design of the blockchain network and assessment of its performance in a simulated smart city context. Static analysis show that the proposed solution provides protection against various types of IoT attacks and has a similar performance to the traditional networks, with latencies and energy consumption only slightly increased. From the works done, the proposal that blockchain has the potential to offer security and efficiency in the IoT communications in future smart city applications emerges.
Isometry pursuit is a convex algorithm for identifying orthonormal column-submatrices of wide matrices. It consists of a novel normalization method followed by multitask basis pursuit. Applied to Jacobians of putative...
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In the process of robot inspection of pointer instrument in substation, the image acquired by camera will bring reading error due to the tilt of dial. This paper proposes an instrument correction method based on featu...
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ISBN:
(纸本)9781665426480
In the process of robot inspection of pointer instrument in substation, the image acquired by camera will bring reading error due to the tilt of dial. This paper proposes an instrument correction method based on feature registration. Firstly, the contour feature of instrument image is extracted by edge detection, and then corners are drawn on the contour feature map of instrument, and the image of instrument to be corrected is compared with the template instrument image At the same time, by using random sampling consensus algorithm (RANSAC) to remove the mismatched points, the corners are accurately matched, and the projection transformation matrix between the instrument image block to be registered and the template instrument image is solved. The projection transformation matrix is applied to the instrument image to be corrected for tilt correction. The experimental results show that the proposed method can better realize the tilt correction of pointer instrument in the process of patrol inspection.
Blockchain technology has become a popular technology since the introduction of WWW. With the introduction of Blockchain 2.0 and Blockchain 3.0 the limited applications of Blockchain increased exponentially. The effic...
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ISBN:
(纸本)9781665454025
Blockchain technology has become a popular technology since the introduction of WWW. With the introduction of Blockchain 2.0 and Blockchain 3.0 the limited applications of Blockchain increased exponentially. The efficient implementation of blockchain requires a lot of energy and computational resources, wherein the backend of the consensus algorithm implementation makes it power hungry. In this paper, we have introduced a new programming environment for the implementation of a consensus algorithm with requires less power and computational devices. The RUST-based implementation of the consensus algorithm makes it more power efficient
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