Review of Text Recognition Works

Agarwal, Mohit; Kaushik, Baijnath

doi:10.5120/ijca2016908750

Cited by 2 publications

(2 citation statements)

References 5 publications

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“…OCR converts a 2D text image into machine-encoded text (i.e., string chains). This approach has been widely used in the last few decades to provide automated text entry into a computer instead of typing all the text [ 55 , 56 ]. Recent OCR engines make use of deep learning techniques to improve their accuracy in text detection and recognition.…”

Section: Book Recognitionmentioning

confidence: 99%

The UJI Aerial Librarian Robot: A Quadcopter for Visual Library Inventory and Book Localisation

Martínez-Martín

Ferrer

Vasilev

et al. 2021

Sensors

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Over time, the field of robotics has provided solutions to automate routine tasks in different scenarios. In particular, libraries are awakening great interest in automated tasks since they are semi-structured environments where machines coexist with humans and several repetitive operations could be automatically performed. In addition, multirotor aerial vehicles have become very popular in many applications over the past decade, however autonomous flight in confined spaces still presents a number of challenges and the use of small drones has not been reported as an automated inventory device within libraries. This paper presents the UJI aerial librarian robot that leverages computer vision techniques to autonomously self-localize and navigate in a library for automated inventory and book localization. A control strategy to navigate along the library bookcases is presented by using visual markers for self-localization during a visual inspection of bookshelves. An image-based book recognition technique is described that combines computer vision techniques to detect the tags on the book spines, followed by an optical character recognizer (OCR) to convert the book code on the tags into text. These data can be used for library inventory. Misplaced books can be automatically detected, and a particular book can be located within the library. Our quadrotor robot was tested in a real library with promising results. The problems encountered and limitation of the system are discussed, along with its relation to similar applications, such as automated inventory in warehouses.

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Section: Book Recognitionmentioning

confidence: 99%

The UJI Aerial Librarian Robot: A Quadcopter for Visual Library Inventory and Book Localisation

Martínez-Martín

Ferrer

Vasilev

et al. 2021

Sensors

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“…The initial population composed of a set of feasible solutions is randomly generated 28 . In order to create the initial population, many experiments have been carried out.…”

Section: Optimization Scheme Of Communication Network Based On Geneti...mentioning

confidence: 99%

Reliability analysis and optimization of computer communication network based on genetic algorithm

Song

2020

Int J Communication

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Summary In this paper, the design of reliable communication network is solved by genetic algorithm. In order to solve this problem, we must first provide the lowest acceptable network reliability. There are many methods to satisfy the network reliability constraints. The penalty function may produce an invalid solution, so it is not suitable to solve the problem. In order to overcome these difficulties, this paper proposes a heuristic repair method, which is based on the number of spanning trees in the graph. Compared with the heuristic maintenance method with lower cost, this method can generate a better solution with less computation. When the population size is 25, the hybridization rate is 0.96, and the mutation rate is 0.07, the best results can be obtained. This paper analyzes the node fault, grasps the influence rule of the fault on the network, and improves the network reliability. This paper summarizes and classifies the failure modes of communication network nodes. Combined with the classic BA network model in the complex network theory, through the simulation design of MATLAB and OPNET, the influence of node function failure and performance failure on network reliability is studied.

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Review of Text Recognition Works

Cited by 2 publications

References 5 publications

The UJI Aerial Librarian Robot: A Quadcopter for Visual Library Inventory and Book Localisation

The UJI Aerial Librarian Robot: A Quadcopter for Visual Library Inventory and Book Localisation

Reliability analysis and optimization of computer communication network based on genetic algorithm

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