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Dissertations / Theses on the topic 'Blue algorithm'

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Published: 2 June 2025
Last updated: 31 July 2025

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1

Severini, Lorenzo. "A parallel community detection algorithm." Master's thesis, Alma Mater Studiorum - Università di Bologna, 2013. http://amslaurea.unibo.it/5948/.

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Complex networks analysis is a very popular topic in computer science. Unfortunately this networks, extracted from different contexts, are usually very large and the analysis may be very complicated: computation of metrics on these structures could be very complex. Among all metrics we analyse the extraction of subnetworks called communities: they are groups of nodes that probably play the same role within the whole structure. Communities extraction is an interesting operation in many different fields (biology, economics,...). In this work we present a parallel community detection algorithm
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2

Rodriguez, Jan Bacca. "Blue noise methods for hexagonal grids and multitone dithering." Access to citation, abstract and download form provided by ProQuest Information and Learning Company; downloadable PDF file, 124 p, 2007. http://proquest.umi.com/pqdweb?did=1246586631&sid=1&Fmt=2&clientId=8331&RQT=309&VName=PQD.

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3

Meredith-Jones, Ryan. "Point-sampling algorithms for simulating motion blur." Thesis, National Library of Canada = Bibliothèque nationale du Canada, 2000. http://www.collectionscanada.ca/obj/s4/f2/dsk1/tape3/PQDD_0012/MQ53389.pdf.

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4

Andersson, Mathias. "Image processing algorithms for compensation of spatially variant blur." Thesis, Linköping University, Department of Electrical Engineering, 2005. http://urn.kb.se/resolve?urn=urn:nbn:se:liu:diva-2947.

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<p>This report adresses the problem of software correction of spatially variant blur in digital images. The problem arises when the camera optics contains flaws, when the scene contains multiple moving objects with different relative motion or the camera itself is i.e. rotated. Compensation through deconvolving is impossible due to the shift-variance in the PSF hence alternative methods are required. There are a number of suggested methods published. This report evaluates two methods</p>
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5

Gambaudo, Noémie. "Filtres optiques anti-lumière bleue appliqués à la vision humaine." Electronic Thesis or Diss., Strasbourg, 2025. http://www.theses.fr/2025STRAD004.

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Avec l'essor des technologies lumineuses, nos yeux sont davantage exposés à la lumière bleue (380-455 nm) et aux rayons UV (UVA, UVB), pouvant causer des dommages photochimiques et perturber le rythme circadien. La thèse vise à concevoir des filtres optiques protégeant l’œil de ces rayons. Après un état de l’art sur les principes de filtrage et les méthodes de calcul électromagnétique, un travail expérimental a permis de déterminer avec précision les indices de réfraction des matériaux utilisés par Ophtalmic. Le filtrage par des multicouches diélectriques, déjà exploité pour les revêtements an
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May, Kaaren Lonna. "Blind image restoration via constrained optimisation." Thesis, Imperial College London, 1999. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.313788.

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7

Whitney, Ann M. "INDOOR-WIRELESS LOCATION TECHNIQUES AND ALGORITHMS UTILIZING UHF RFID AND BLE TECHNOLOGIES." UKnowledge, 2019. https://uknowledge.uky.edu/me_etds/138.

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The work presented herein explores the ability of Ultra High Frequency Radio Frequency (UHF RF) devices, specifically (Radio Frequency Identification) RFID passive tags and Bluetooth Low Energy (BLE) to be used as tools to locate items of interest inside a building. Localization Systems based on these technologies are commercially available, but have failed to be widely adopted due to significant drawbacks in the accuracy and reliability of state of the art systems. It is the goal of this work to address that issue by identifying and potentially improving upon localization algorithms. The work
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Al-Nu'aimi, Abdallah S. N. A. "Design, Implementation and Performance Evaluation of Robust and Secure Watermarking Techniques for Digital Coloured Images. Designing new adaptive and robust imaging techniques for embedding and extracting 2D watermarks in the spatial and transform domain using imaging and signal processing techniques." Thesis, University of Bradford, 2009. http://hdl.handle.net/10454/4255.

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The tremendous spreading of multimedia via Internet motivates the watermarking as a new promising technology for copyright protection. This work is concerned with the design and development of novel algorithms in the spatial and transform domains for robust and secure watermarking of coloured images. These algorithms are adaptive, content-dependent and compatible with the Human Visual System (HVS). The host channels have the ability to host a large information payload. Furthermore, it has enough capacity to accept multiple watermarks. Abstract This work achieves several contributions in the
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Blume, Steffen [Verfasser]. "Zur systematischen Ermittlung Hardware-geeigneter Zahlendarstellungen für Algorithmen der digitalen Signalverarbeitung / Steffen Blume." Aachen : Shaker, 2015. http://d-nb.info/107408747X/34.

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Al-Nu'aimi, Abdallah Saleem Na. "Design, implementation and performance evaluation of robust and secure watermarking techniques for digital coloured images : designing new adaptive and robust imaging techniques for embedding and extracting 2D watermarks in the spatial and transform domain using imaging and signal processing techniques." Thesis, University of Bradford, 2009. http://hdl.handle.net/10454/4255.

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The tremendous spreading of multimedia via Internet motivates the watermarking as a new promising technology for copyright protection. This work is concerned with the design and development of novel algorithms in the spatial and transform domains for robust and secure watermarking of coloured images. These algorithms are adaptive, content-dependent and compatible with the Human Visual System (HVS). The host channels have the ability to host a large information payload. Furthermore, it has enough capacity to accept multiple watermarks. Abstract This work achieves several contributions in the ar
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11

Richter, Martin Max [Verfasser], Hartmut [Akademischer Betreuer] Schröder, and Holger [Akademischer Betreuer] Blume. "Super-Resolution Algorithmen für eine leistungsfähige Videosignalverarbeitung / Martin Max Richter. Betreuer: Hartmut Schröder. Gutachter: Holger Blume." Dortmund : Universitätsbibliothek Dortmund, 2012. http://d-nb.info/1099294797/34.

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12

Chiana, Lorenzo. "Studio e sperimentazione di un algoritmo RTLS per il posizionamento indoor." Master's thesis, Alma Mater Studiorum - Università di Bologna, 2021.

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Il presente lavoro di tesi si occupa di sistemi RTLS, ossia sistemi di localizzazione in tempo reale che vengono impiegati per l'identificazione e il tracciamento automatico della posizione di oggetti o persone, tipicamente in ambienti indoor. La loro applicazione offre la possibilità di acquisire importati informazioni a supporto di funzioni di pianificazione, produzione, logistica, sicurezza, ottimizzazione operativa o di comprensione del comportamento di individui (e.g., clienti, collaboratori, etc.). Questo elaborato riguarda lo studio di nuovi algoritmi nell'ambito di un progetto dell'az
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Di, Gironimo Gaetano. "Sviluppo e verifica di un algoritmo semplificato per la mappatura della pericolosità di allagamento da nubifragio in aree urbane." Master's thesis, Alma Mater Studiorum - Università di Bologna, 2019.

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Nel corso degli anni, a seguito della forte urbanizzazione e di una sempre maggiore impermeabilizzazione del territorio, gli allagamenti da nubifragio sono diventati sempre più frequenti nei centri urbani. L’algoritmo Fill & Spill, sviluppato da Gecosistema s.r.l, fornisce una mappatura della pericolosità di allagamento da nubifragio in aree urbane. Si tratta di un approccio semplificato che non considera la dinamica temporale dei processi idrodinamici, ma allo stesso tempo è idoneo ad analizzare modelli digitali delle quote del terreno a risoluzione elevata (anche inferiore al metro) e ad ide
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Fiorentini, Alessandro. "Implementazione e valutazione delle prestazioni di algoritmi di localizzazione Indoor basati su dispositivi Beacon." Bachelor's thesis, Alma Mater Studiorum - Università di Bologna, 2016. http://amslaurea.unibo.it/10894/.

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Questo elaborato di tesi ha lo scopo di illustrare un'applicazione realizzata per dispositivi Android in grado di localizzare l'utente all'interno di un ambiente indoor sfruttando l'utilizzo dei Beacon e dare una valutazione dei risultati ottenuti. L'utente potrà registrare i dispositivi Beacon in suo possesso all'interno dell'applicazione, caricare la planimetria di un ambiente e configurarlo indicando esattamente quale Beacon si trova in una determinata posizione. Infine potrà scegliere quale tra i tre algoritmi implementati (Prossimità, Triangolazione e Fingerprinting) utilizzare per visual
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Eusse, Giraldo Juan Fernando [Verfasser], Rainer [Akademischer Betreuer] Leupers, and Holger [Akademischer Betreuer] Blume. "ASIP algorithmic/architectural co-exploration based on high level performance estimation / Juan Fernando Eusse Giraldo ; Rainer Leupers, Holger Blume." Aachen : Universitätsbibliothek der RWTH Aachen, 2019. http://d-nb.info/1220359505/34.

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16

Cunha, Nailson dos Santos. "Um framework para a geração semiautomática de solos de guitarra." Universidade Federal da Paraíba, 2016. http://tede.biblioteca.ufpb.br:8080/handle/tede/9279.

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Submitted by Fernando Souza (fernandoafsou@gmail.com) on 2017-08-17T15:58:41Z No. of bitstreams: 1 arquivototal.pdf: 2509071 bytes, checksum: 7e5e11344bc01beb22fdb94bee3ccdcf (MD5)<br>Made available in DSpace on 2017-08-17T15:58:41Z (GMT). No. of bitstreams: 1 arquivototal.pdf: 2509071 bytes, checksum: 7e5e11344bc01beb22fdb94bee3ccdcf (MD5) Previous issue date: 2016-02-24<br>This work deals with the development of a framework based on computational and optimization methods for algorithmic composition, more precisely, for the generation of guitar solos. The proposed approach was considered s
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FORESTI, Henrique Braga. "Desenvolvimento de um robô bípede autônomo." Universidade Federal de Pernambuco, 2006. https://repositorio.ufpe.br/handle/123456789/5545.

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Made available in DSpace on 2014-06-12T17:40:09Z (GMT). No. of bitstreams: 2 arquivo7608_1.pdf: 4351687 bytes, checksum: 1cf4c5b1224957a01f5d7ef04c0a0c4f (MD5) license.txt: 1748 bytes, checksum: 8a4605be74aa9ea9d79846c1fba20a33 (MD5) Previous issue date: 2006<br>Sistemas robóticos humanóides ainda não estão facilmente disponíveis a qualquer pesquisador. São comuns trabalhos que apresentam estratégias de controle para robôs bípedes e algoritmos de inteligência artificial desenvolvidos em ambientes de simulação e impossibilitados de passar por testes de funcionamento no mundo real. No i
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18

Bouabci, Mauricio Borges. "Algoritmos de Cluster e Percolação." Universidade de São Paulo, 1998. http://www.teses.usp.br/teses/disponiveis/43/43133/tde-25022014-154840/.

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O objetivo principal deste trabalho é o de investigar relações entre mapeamentos de modelos de spin em modelos de percolação e a existência de algoritmos de cluster capazes de simular de forma eficiente o modelo. Apresentamos um mapeamento do modelo de Blume-Capel em um modelo de percolação que permite reobter um algoritmo proposto anteriormente por nós através de uma prova de balanço detalhado, o que abre a possibilidade de descrevermos todo o diagrama de fases do modelo em termos de propriedades dos clusters formados. Isto é particularmente interessante, já que o modelo possui um ponto tricr
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Li, Yunming. "Machine vision algorithms for mining equipment automation." Thesis, Queensland University of Technology, 2000.

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20

Joly, Morgane. "Contribution to the study of the improvement of the radio coexistence of a wireless sensor network through the implementation of embedded algorithms based on artificial intelligence." Electronic Thesis or Diss., Université Gustave Eiffel, 2025. http://www.theses.fr/2025UEFL2020.

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La bande ISM est une bande sans licence où les restrictions d'émission sont assouplies par rapport à la bande sous licence. Cela a conduit à une prolifération des protocoles de communication (Wi-Fi, Bluetooth Low Energy (BLE), Zigbee...), malgré l'absence de garantie sur la disponibilité du spectre. Si les protocoles à bande étroite, à faible puissance permettent d'optimiser l'énergie pour les communications à courte portée et à terme d'allonger la durée de vie de la batterie des appareils IoT, leurs méthodes d'accès à l'environnement radio présentent des limites pour garantir de bonnes condit
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Sun, Xusheng. "Optimal distributed detection and estimation in static and mobile wireless sensor networks." Diss., Georgia Institute of Technology, 2012. http://hdl.handle.net/1853/44825.

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This dissertation develops optimal algorithms for distributed detection and estimation in static and mobile sensor networks. In distributed detection or estimation scenarios in clustered wireless sensor networks, sensor motes observe their local environment, make decisions or quantize these observations into local estimates of finite length, and send/relay them to a Cluster-Head (CH). For event detection tasks that are subject to both measurement errors and communication errors, we develop an algorithm that combines a Maximum a Posteriori (MAP) approach for local and global decisions with low-
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22

Jacobs, Bidhan. "Vers une esthétique du signal. Dynamiques du flou et libérations du code dans les arts filmiques (1990-2010)." Thesis, Paris 3, 2014. http://www.theses.fr/2014PA030089.

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Au cours de la décennie 1990, l'introduction puis l’expansion accélérée du numérique par les industries techniques ont favorisé le développement dans les arts filmiques d’un courant critique spontané et collectif portant sur le signal. Nous élaborons une histoire des techniques et des formes esthétiques critiques du signal, en faisceaux de segments, selon une taxinomie qui prolonge le structuralisme matériologique des années 70 (Malcolm Le Grice, Peter Gidal, Paul Sharits, Anthony McCall). Cette histoire embrasse et met en perspective cinéma, vidéo et numérique, de manière à réorganiser nos co
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23

Buat, Benjamin. "Caméra active 3D par Depth from Defocus pour l'inspection de surface : algorithmie, modèle de performance et réalisation expérimentale." Electronic Thesis or Diss., université Paris-Saclay, 2022. http://www.theses.fr/2022UPASG058.

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Cette thèse traite de la conception d'une caméra 3D capable de produire la carte de profondeur complète d'une scène dans le cadre de l'inspection de surface. Ce domaine d'application implique généralement des objets peu texturés et un cahier des charges stricte concernant la compacité du système d'inspection et la précision requise. Dans cette thèse, nous proposons d'utiliser une caméra associée à un projecteur permettant d'ajouter une texture artificielle à la scène. L'extraction de 3D repose sur le principe de « Depth-From-Defocus » (DFD) qui consiste à estimer la profondeur en exploitant le
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24

COSTA, Elloá Barreto Guedes da. "Ataques Quânticos a Geradores de Números Pseudo-Aleatórios." Universidade Federal de Campina Grande, 2011. http://dspace.sti.ufcg.edu.br:8080/jspui/handle/riufcg/1864.

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Submitted by Johnny Rodrigues (johnnyrodrigues@ufcg.edu.br) on 2018-10-01T16:46:31Z No. of bitstreams: 1 ELLOÁ BARRETO GUEDES DA COSTA - DISSERTAÇÃO PPGCC 2011..pdf: 1433883 bytes, checksum: fb9fa0561b94ab2b495915f5f377c364 (MD5)<br>Made available in DSpace on 2018-10-01T16:46:31Z (GMT). No. of bitstreams: 1 ELLOÁ BARRETO GUEDES DA COSTA - DISSERTAÇÃO PPGCC 2011..pdf: 1433883 bytes, checksum: fb9fa0561b94ab2b495915f5f377c364 (MD5) Previous issue date: 2011-03-25<br>Este trabalho apresenta um ataque quântico de comprometimento permanente ao gerador pseudo-aleatório de Blum-Micali. A seguranç
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25

Valterová, Eva. "Slepá Dekonvoluce Obrazu ve STEM Módu Elektronového Mikroskopu." Master's thesis, Vysoké učení technické v Brně. Fakulta elektrotechniky a komunikačních technologií, 2018. http://www.nusl.cz/ntk/nusl-377764.

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Slepá dekonvoluce je metoda, při které je rozptylová funkce a skutečný obraz rekonstruován zároveň. Cílem této práce je představit různé metody slepé dekonvoluce a najít optimální metodu rekonstrukce původního obrazu a rozptylové funkce. Jako nejvhodnější metoda slepé dekonvoluce byl zvolen algoritmus střídavé minimalizace, který byl upraven a testován. Vlastnosti navrženého algoritmu byly testovány na uměle degradovaných datech a na reálných datech pořízených skenovacím transmisním elektronovým mikroskopem. Účinnost algoritmu byla hodnocena hned několika hodnotícími kritérii. Byla zjištěna om
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Hošek, Václav. "Distributed Ray Tracing." Master's thesis, Vysoké učení technické v Brně. Fakulta informačních technologií, 2008. http://www.nusl.cz/ntk/nusl-235956.

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VYSOKÉ UČENÍ TECHNICKÉ V BRNĚ Distributed Ray Tracing, also called distribution ray tracing and stochastic ray tracing, is a refinement of ray tracing that allows for the rendering of "soft" phenomena, area light, depth of field and motion blur.
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27

Escande, Paul. "Compression et inférence des opérateurs intégraux : applications à la restauration d’images dégradées par des flous variables." Thesis, Toulouse, ISAE, 2016. http://www.theses.fr/2016ESAE0020/document.

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Le problème de restauration d'images dégradées par des flous variables connaît un attrait croissant et touche plusieurs domaines tels que l'astronomie, la vision par ordinateur et la microscopie à feuille de lumière où les images sont de taille un milliard de pixels. Les flous variables peuvent être modélisés par des opérateurs intégraux qui associent à une image nette u, une image floue Hu. Une fois discrétisé pour être appliqué sur des images de N pixels, l'opérateur H peut être vu comme une matrice de taille N x N. Pour les applications visées, la matrice est stockée en mémoire avec un exao
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Moreno, Moreno Flavio David. "Reconocimiento de gestos corporales, utilizando procesamiento digital de imágenes para activar sistema de alarma." Bachelor's thesis, Universidad Ricardo Palma, 2015. http://cybertesis.urp.edu.pe/handle/urp/1283.

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La investigación realizada a los sistemas de seguridad electrónica de edificios, plantea como objetivo principal el reconocimiento de tres gestos de un lenguaje corporal del personal de vigilancia, y la consecuente activación de alarma en forma automática. Inicialmente se realizó una encuesta dirigida a las administraciones y personal de edificios, para saber cuales eran las ocurrencias que vulneraban la seguridad de un edificio multifamiliar, luego se observaron y analizaron las imágenes capturadas por una cámara de vigilancia ubicada en la recepción, identificando las ocurrencias más vulne
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Hu, Nan. "Approximation Algorithms for Geometric Covering Problems for Disks and Squares." Thesis, 2013. http://hdl.handle.net/10012/7703.

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Geometric covering is a well-studied topic in computational geometry. We study three covering problems: Disjoint Unit-Disk Cover, Depth-(≤ K) Packing and Red-Blue Unit-Square Cover. In the Disjoint Unit-Disk Cover problem, we are given a point set and want to cover the maximum number of points using disjoint unit disks. We prove that the problem is NP-complete and give a polynomial-time approximation scheme (PTAS) for it. In Depth-(≤ K) Packing for Arbitrary-Size Disks/Squares, we are given a set of arbitrary-size disks/squares, and want to find a subset with depth at most K and maximizing t
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Shen, Cheng-han, and 沈政翰. "An Adaptive Content-Oriented Frame Insertion Blur Reducing Algorithm." Thesis, 2011. http://ndltd.ncl.edu.tw/handle/18786510064584947246.

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碩士<br>長榮大學<br>資訊管理學系碩士班<br>99<br>With the improvements of technology and equipments of image display, the resolution and LCD size of displays are kept on increasing. LCD motion blur happens on the edge of the moving objects during the frame is updated and is mainly contributed by the “Slow Liquid Crystal Response”, “Hold-type Display” and the “Eye-tracking Integration”. To improve the perceptual quality and reduce motion blur for viewers, several techniques such as frame rate up-conversion (FRUC) is developed. However, the frame insertion algorithm cannot absolutely correct in the course of LC
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Chung, Hsiao-han, and 鍾曉函. "Improve algorithms for two red-blue hitting set problems with the consecutive ones property." Thesis, 2009. http://ndltd.ncl.edu.tw/handle/88393538636624192971.

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碩士<br>國立中正大學<br>資訊工程所<br>97<br>Covering problems are important in many applications. In this work, we consider two red-blue hitting set problems, which are special covering problems. Assume that given a set of elements S and two collections Cred and Cblue of subsets of S, which are called a red collection and a blue collection respectively. We say that a set A ∈ Cred ∪ Cblue is hit by a subset S′ ⊆ S if A ∩ S′ 6= ∅. The first red-blue hitting set problem, the red-blue hitting set problem (RBHS) asks for a subset S′ ⊆ S such that all sets in the blue collection must be hit by S′, while the numb
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Jallow, Bubacarr, and 周柏凱. "An Evaluation of the BLE-based Indoor Positioning Algorithms." Thesis, 2018. http://ndltd.ncl.edu.tw/handle/w39y58.

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碩士<br>元智大學<br>通訊工程學系<br>106<br>In the navigation domain, Indoor Positioning have become the a principal focus to researchers and technology vendors. Promising approaches like the use RFID, UWB, Wi-Fi and BLE have been proposed to better enhance the technology. How- ever, a conventional Indoor Positioning System(IPS) is still a work in progress. For the purpose of this Thesis, an evaluation of of different algorithms is done on the Bluetooth Low Energy(BLE) approach using Received Signal Strength(RSS) as the root parameter. Moreover, iBeacon and Raspberry Pi 3 are two central tools used for the
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Chung-Yen, Lin, and 林宗彥. "A Novel Blind Motion Deblurring Algorithm for Restoring an Image with Uniform Motion Blur." Thesis, 2005. http://ndltd.ncl.edu.tw/handle/26180958061711803808.

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碩士<br>國立清華大學<br>資訊工程學系<br>93<br>Restoration of images corrupt by motion blurs has been strongly demanded due to the emergent digital camera market in recent years. In this paper, we propose a novel algorithm for blindly restoring images with uniform motion blur. The proposed algorithm consists of three steps to recover the motion blur parameters. At first, we estimate an approximate motion blur direction from the edge direction distribution of the blurred image. Subsequently, the motion blur extent is estimated by using the autocorrelation method. Finally, we refine the motion blur estimation
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34

Hsiao, Tzu-Wen, and 蕭子文. "Implementation of an Efficient Multicast-Tree Construction Algorithm for a Hybrid IoT System Based on WiFi and BLE 4.0." Thesis, 2017. http://ndltd.ncl.edu.tw/handle/06777498678110564967.

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碩士<br>國立中興大學<br>通訊工程研究所<br>105<br>Multicast is widely implied in Wireless Mesh Networks, especially through Muilticast Tree structure, source node can collect all the member’s data from system. Hence, installing sensor on each node in the system, node can process information exchange through Multicast Tree and send the measured data to source node. It can reduce the waste of human resources. In this thesis, we use AM335Xevm Evaluation Board and WL1835MOD Wireless Module to construct a Hybrid Internet Of Things(IOT) system. Among this system, senor can connect to AM335Xevm Evaluation Board
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Hajiaghaei, Shanjani Sima. "Computational and communication complexity of geometric problems." Thesis, 2021. http://hdl.handle.net/1828/13181.

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In this dissertation, we investigate a number of geometric problems in different settings. We present lower bounds and approximation algorithms for geometric problems in sequential and distributed settings. For the sequential setting, we prove the first hardness of approximation results for the following problems: \begin{itemize} \item Red-Blue Geometric Set Cover is APX-hard when the objects are axis-aligned rectangles. \item Red-Blue Geometric Set Cover cannot be approximated to within $2^{\log^{1-1/{(\log\log m)^c}}m}$ in polynomial time for any constant $c < 1/2$, unless
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