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Dissertations / Theses on the topic 'Haar Transform'

Author: Grafiati
Published: 3 June 2025
Last updated: 31 July 2025

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1

Cabral, Guilherme Marieiro. "All optical Haar transform based on planar waveguides." Master's thesis, Universidade de Aveiro, 2016. http://hdl.handle.net/10773/18515.

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Mestrado em Engenharia Electrónica e Telecomunicações<br>Com o constante evoluir das necessidades do ser humano nos últimos anos, a transmissão e armazenamento de dados para aplicações vídeo e media têm crescido exponencialmente, obrigando a uma procura incessante de novas soluções para optimizar a largura de banda. Com a finalidade de obter um processamento de imagem mais rápido, os métodos de compressão são uma importante ferramenta para reduzir os dados redundantes. Entre diversas técnicas de transformação para compressão, as transformadas baseadas em wavelets são as mais usadas devi
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Andhavarapu, Sarat Kiran. "Image Blur Detection with Two-Dimensional Haar Wavelet Transform." DigitalCommons@USU, 2015. https://digitalcommons.usu.edu/etd/4443.

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Efficient detection of image blur and its extent is an open research problem in computer vision. Image blur has a negative impact on image quality. Blur is introduced into images due to various factors including limited contrast, improper exposure time or unstable device handling. Toward this end, an algorithm is presented for image blur detection with the use of Two-Dimensional Haar Wavelet transform (2D HWT). The algorithm is experimentally compared with two other image blur detection algorithms frequently cited in the literature. When evaluated over a sample of images, the algorithm perform
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Fernandes, João Diogo Victor. "Haar transform based on a 2 x 2 multimode interferometer." Master's thesis, Universidade de Aveiro, 2016. http://hdl.handle.net/10773/21291.

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Mestrado em Engenharia Eletrónica e Telecomunicaões<br>Com o crescimento de novos dispositivos fot onicos resultantes da jun c~ao da electr onica e optica, surgiram novas areas de estudo. A fot onica integrada e uma dessas areas e refere-se ao fabrico e implementa c~ao de v arios componentes fot onicos num substrato plano comum. De forma a obter um processamento de imagem superior, os m etodos de compress~ao s~ao uma ferramenta fundamental, da qual a transformada de Haar e a mais importante devido a sua facilidade de implementa c~ao e r apida computa c~ao. Este m etodo pode ser alc
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Idrees, Zunera, and Eliza Hashemiaghjekandi. "Image Compression by Using Haar Wavelet Transform and Singualr Value Decomposition." Thesis, Linnéuniversitetet, Institutionen för datavetenskap, fysik och matematik, DFM, 2011. http://urn.kb.se/resolve?urn=urn:nbn:se:lnu:diva-11467.

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The rise in digital technology has also rose the use of digital images. The digital imagesrequire much storage space. The compression techniques are used to compress the dataso that it takes up less storage space. In this regard wavelets play important role. Inthis thesis, we studied the Haar wavelet system, which is a complete orthonormal systemin L2(R): This system consists of the functions j the father wavelet, and y the motherwavelet. The Haar wavelet transformation is an example of multiresolution analysis. Ourpurpose is to use the Haar wavelet basis to compress an image data. The method
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Brannock, Evelyn. "Using the discrete wavelet transform to Haar'd code a blind digital watermark." Atlanta, Ga. : Georgia State University, 2009. http://digitalarchive.gsu.edu/cs_diss/35/.

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Thesis (Ph. D.)--Georgia State University, 2009.<br>Title from title page (Digital Archive@GSU, viewed July 20, 2010) Michael Weeks, committee chair; Saeid Belkasim, Robert Harrison, Ephraim McLean, committee members. Includes bibliographical references (p. 145-153).
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Alnasser, Mais. "PHASE-SHIFTING HAAR WAVELETS FOR IMAGE-BASED RENDERING APPLICATIONS." Doctoral diss., University of Central Florida, 2008. http://digital.library.ucf.edu/cdm/ref/collection/ETD/id/4181.

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In this thesis, we establish the underlying research background necessary for tackling the problem of phase-shifting in the wavelet transform domain. Solving this problem is the key to reducing the redundancy and huge storage requirement in Image-Based Rendering (IBR) applications, which utilize wavelets. Image-based methods for rendering of dynamic glossy objects do not truly scale to all possible frequencies and high sampling rates without trading storage, glossiness, or computational time, while varying both lighting and viewpoint. This is due to the fact that current approaches are limited
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Sazish, Abdul Naser. "Efficient architectures and power modelling of multiresolution analysis algorithms on FPGA." Thesis, Brunel University, 2011. http://bura.brunel.ac.uk/handle/2438/6290.

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In the past two decades, there has been huge amount of interest in Multiresolution Analysis Algorithms (MAAs) and their applications. Processing some of their applications such as medical imaging are computationally intensive, power hungry and requires large amount of memory which cause a high demand for efficient algorithm implementation, low power architecture and acceleration. Recently, some MAAs such as Finite Ridgelet Transform (FRIT) Haar Wavelet Transform (HWT) are became very popular and they are suitable for a number of image processing applications such as detection of line singulari
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Sudini, Vikas Reddy. "Real-time Vision-Based Lane Detection with 1D Haar Wavelet Transform on Raspberry Pi." DigitalCommons@USU, 2017. https://digitalcommons.usu.edu/etd/5630.

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Rapid progress is being made towards the realization of autonomous cars. Since the technology is in its early stages, human intervention is still necessary in order to ensure hazard-free operation of autonomous driving systems. Substantial research efforts are underway to enhance driver and passenger safety in autonomous cars. Toward that end GreedyHaarSpiker, a real-time vision-based lane detection algorithm is proposed for road lane detection in different weather conditions. The algorithm has been implemented in Python 2.7 with OpenCV 3.0 and tested on a Raspberry Pi 3 Model B ARMv8 1GB RAM
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9

Paulson, Courtney L. "Using the Haar-Fisz wavelet transform to uncover regions of constant light intensity in Saturn's rings." Honors in the Major Thesis, University of Central Florida, 2010. http://digital.library.ucf.edu/cdm/ref/collection/ETH/id/1473.

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This item is only available in print in the UCF Libraries. If this is your Honors Thesis, you can help us make it available online for use by researchers around the world by following the instructions on the distribution consent form at http://library.ucf.edu/Systems/DigitalInitiatives/DigitalCollections/InternetDistributionConsentAgreementForm.pdf You may also contact the project coordinator, Kerri Bottorff, at kerri.bottorff@ucf.edu for more information.<br>Bachelors<br>Sciences<br>Statistics
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10

Adorni, Cássio Avelino. "Metodologia para automação de inspeção visual de bolsas para coleta de sangue." Universidade de São Paulo, 2008. http://www.teses.usp.br/teses/disponiveis/18/18152/tde-12022009-091751/.

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As bolsas para coleta de sangue necessitam cuidados técnicos que assegurem sua esterilidade biológica durante o processo de fabricação até a entrega do produto final. As bolsas para coleta de sangue não devem conter qualquer tipo de resíduo, para que o seu uso ou conteúdo não seja comprometido causando diversos transtornos. É preciso eliminar o risco de contaminação; no entanto muitas empresas fazem a inspeção de bolsas para coleta de sangue visualmente, a olho nu, por funcionários treinados no uso de equipamento simples, o qual não pode garantir que todas as bolsas estejam livres de resíduos,
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11

Price, Matthew. "Automatic Modulation Classification Using Grey Relational Analysis." Thesis, Virginia Tech, 2011. http://hdl.handle.net/10919/42441.

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One component of wireless communications of increasing necessity in both civilian and military applications is the process of automatic modulation classification. Modulation of a detected signal of unknown origin requiring interpretation must first be determined before the signal can be demodulated. This thesis presents a novel architecture for a modulation classifier that determines the most likely modulation using Grey Relational Analysis with the extraction and combination of multiple signal features. An evaluation of data preprocessing methods is conducted and performance of the classifier
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Cain, Christopher Hawthorn. "Real Time SLAM Using Compressed Occupancy Grids For a Low Cost Autonomous Underwater Vehicle." Diss., Virginia Tech, 2014. http://hdl.handle.net/10919/47920.

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The research presented in this dissertation pertains to the development of a real time SLAM solution that can be performed by a low cost autonomous underwater vehicle equipped with low cost and memory constrained computing resources. The design of a custom rangefinder for underwater applications is presented. The rangefinder makes use of two laser line generators and a camera to measure the unknown distance to objects in an underwater environment. A visual odometry algorithm is introduced that makes use of a downward facing camera to provide our underwater vehicle with localization information
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13

Almeida, Luis Miguel Lima de. "All-optical processing based on integrated optics." Master's thesis, Universidade de Aveiro, 2014. http://hdl.handle.net/10773/13705.

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Mestrado em Engenharia Eletrónica e Telecomunicações<br>During the last years, the demand for high data transfer rates in optical fiber communications has increased exponentially. Since image in its original format exactly as it is captured by the digital camera requires an enormous amount of storage capacity, it is important to develop a system that increases its amount of compression while preserving the important image’s information. In the topic of image’s compression, there are several transformation techniques used for data compression. Discrete Wavelet Transform (DWT) is one of t
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Song, Lei. "Computational Analysis of Genome-Wide DNA Copy Number Changes." Thesis, Virginia Tech, 2011. http://hdl.handle.net/10919/32462.

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DNA copy number change is an important form of structural variation in human genome. Somatic copy number alterations (CNAs) can cause over expression of oncogenes and loss of tumor suppressor genes in tumorigenesis. Recent development of SNP array technology has facilitated studies on copy number changes at a genome-wide scale, with high resolution. Quantitative analysis of somatic CNAs on genes has found broad applications in cancer research. Most tumors exhibit genomic instability at chromosome scale as a result of dynamically accumulated genomic mutations during the course of tumor progress
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15

Silva, Leonardo Dorneles Figueiredo. "Monitoramento do estado de sonolência de motoristas de automóveis através de análise de imagens de olhos." Universidade Federal do Maranhão, 2012. http://tedebc.ufma.br:8080/jspui/handle/tede/478.

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Made available in DSpace on 2016-08-17T14:53:19Z (GMT). No. of bitstreams: 1 dissertacao Leonardo Dorneles.pdf: 5262998 bytes, checksum: ddf1c0050c4fd4f028d30417f5fb59f8 (MD5) Previous issue date: 2012-02-28<br>Conselho Nacional de Desenvolvimento Científico e Tecnológico<br>The tiredness and fatigue contribute to the involvement of drivers in a large number of accidents. This number could be reduced if it was possible to detect the moment of inattention and warn the driver of their condition. A methodology that is able to detect this automatically should be able to process the information
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Fernandes, Rui Miguel Félix. "Object signature in radio frequency." Master's thesis, Universidade de Aveiro, 2014. http://hdl.handle.net/10773/13708.

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Mestrado em Engenharia Eletrónica e Telecomunicações<br>The RF signature can be consider as a fingerprint of an object when submitted to electromagnetic radiation. Based on this concept, the initial goal of this work was to elaborate a comparative analysis of the Radio Frequency signature of different materials. Through the design of a prototype based on an adapted Wi-Fi network was developed an innovative system capable of distinguishing materials with the analysis of their interference in the propagated channel. In order to refine this distinction was utilized a signal processing tool, the
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17

Batista, Jess? Haniel do Nascimento. "Sistema de teleoftalmologia para aux?lio ao pr?-diagn?stico de disfun??es oculomotoras." Universidade Federal do Rio Grande do Norte, 2012. http://repositorio.ufrn.br:8080/jspui/handle/123456789/15448.

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Made available in DSpace on 2014-12-17T14:56:07Z (GMT). No. of bitstreams: 1 JesseHNB_DISSERT.pdf: 2206144 bytes, checksum: 191ca3ce00f97e4019b5bdb2bc9ab914 (MD5) Previous issue date: 2012-10-18<br>Coordena??o de Aperfei?oamento de Pessoal de N?vel Superior<br>The vision is one of the five senses of the human body and, in children is responsible for up to 80% of the perception of world around. Studies show that 50% of children with multiple disabilities have some visual impairment, and 4% of all children are diagnosed with strabismus. The strabismus is an eye disability associated with handl
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18

Panayiotou, Helen. "Vibrational spectroscopy of human hair keratin fibres." Thesis, Queensland University of Technology, 1998. https://eprints.qut.edu.au/36946/1/36946_Panayiotou_1998.pdf.

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This thesis is concerned with an investigation of human hair fibres, and is primarily directed towards forensic and cosmetic applications. Initially, a small study was conducted by the use of scanning electron microscopy in order to obtain a visual understanding of the human hair fibre. However, the main focus of the thesis is on the application of vibrational spectroscopy techniques for the investigation of single hair fibres (for forensic studies) or their bulk samples (for cosmetic studies). Previous research directed towards the forensic field, failed to discriminate human hair fibres wi
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Kretzler, Madison Elizabeth. "AUTOMATED CURVED HAIR DETECTION AND REMOVAL IN SKIN IMAGES TO SUPPORT AUTOMATED MELANOMA DETECTION." Case Western Reserve University School of Graduate Studies / OhioLINK, 2013. http://rave.ohiolink.edu/etdc/view?acc_num=case1365125074.

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20

Soltani, Skander. "Application de la transformée en ondelettes en reconnaissance des formes." Compiègne, 1998. http://www.theses.fr/1998COMP1154.

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Cette thèse concerne l'application de la transformée en ondelettes pour l'estimation fonctionnelle. La première partie consiste en l'étude de l'estimation de la fonction de régression. La méthode proposée utilise des décompositions sur des frames d'ondelettes. Il nous faut choisir alors les ondelettes pour lesquelles nous obtenons un risque en généralisation le plus faible. Des tests sur des données simulées montrent une supériorité de la méthode de pénalisation absolue pour la construction de l'estimateur et des méthodes du bootstrap pour le contrôle de complexité. La méthode a été également
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21

Bodi, Geoffroy. "Débruitage, déconvolution et extraction de caractéristiques de signaux dans le domaine temporel pour imagerie biomédicale optique." Mémoire, Université de Sherbrooke, 2010. http://savoirs.usherbrooke.ca/handle/11143/1588.

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Un scanner permettant l'imagerie moléculaire est d'un grand intérêt pour l'industrie pharmaceutique dans le développement de nouveaux médicaments, notamment pour visualiser leur efficacité m-vivo (par exemple pour le cancer). Le groupe de recherche TomOptUS développe un scanner par tomographie optique diffuse par fluorescence pour imagerie moléculaire sur petit animal. Le but est de localiser en 3D les centres de fluorescence d'un traceur injecté dans l'animal. À cette fin, nous utilisons des mesures de signaux optiques de fluorescence obtenues par comptage de photons corrélé en
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Carlberg, Caroline, and Mitra Goudarzi. "Transformellt ledarskap : En kvalitativ studie om dess underdimensioner och vilken påverkan de har på förtroende och motivation, sett ur medarbetarnas perspektiv." Thesis, Högskolan i Gävle, Avdelningen för ekonomi, 2016. http://urn.kb.se/resolve?urn=urn:nbn:se:hig:diva-21749.

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Syfte: Syftet med studien är att skapa en djupare förståelse kring hur medarbetare ser på de fyra underdimensionerna i det transformella ledarskapet och om de anser att ett sådant ledarskap skulle kunna bidra till en ökad motivation och ett ökat förtroende. Metod: Studien är baserad på en kvalitativ metod där vi har använt oss av strukturerade intervjuer. Vi intervjuade 10 personer, anställda på större företag. För att kunna analysera vårt material har vi använt oss av en tematisk analys. Resultat &amp; slutsats: Studien visade vilka karaktärsdrag inom det transformella ledarskapet som var öns
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Wu, Biao. "Rhizobium-induced root hair deformation in Arabidopsis thaliana transformed with a legume lectin nucleotide phosphohydrolase and characterization of endogenous apyrases of Arabidopsis thaliana /." For electronic version search Digital dissertations database. Restricted to UC campuses. Access is free to UC campus dissertations, 2002. http://uclibs.org/PID/11984.

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Yacoub, Milad. "État et organisations de la société civile en milieu rural égyptien, un transfert de pouvoir ? : le cas d'Al-Hagar, un village du gouvernorat de Fayoum /." Montpellier : CIHEAM-IAMM, 2004. http://catalogue.bnf.fr/ark:/12148/cb39941635j.

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Texte remanié de: Th. Master of science--Agron.--Montpellier--CIHEAM, 2004.<br>CIHEAM = Centre international des hautes études agronomiques méditerranéennes. IAMM = Institut agronomique méditerranéen de Montpellier. Bibliogr. p. 85-91. Résumé en français et en anglais.
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McDonald, Lucas J. "Synthesis and Characterization of Novel Flavonoid-Based Fluorescent Sensors and other Sensors with Excited State Intramolecular Proton Transfer for Biological Applications." University of Akron / OhioLINK, 2018. http://rave.ohiolink.edu/etdc/view?acc_num=akron1524658238472646.

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Mesquita, Maria do Céu Vinhas Sérgio Vilão. "Síndrome metabólica em infetados pelo vírus da imunodeficiência humana." Master's thesis, [s.n.], 2014. http://hdl.handle.net/10284/4841.

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Projeto de Pós-Graduação/Dissertação apresentado à Universidade Fernando Pessoa como parte dos requisitos para obtenção do grau de Mestre em Ciências Farmacêuticas<br>A Síndrome metabólica consiste num conjunto de fatores de risco (obesidade abdominal, hipertriglicemia, diminuição do colesterol de alta densidade, hipertensão e hiperglicemia) que predispõem o indivíduo para doenças do foro cardiovascular. O facto da literatura frequentemente associar os indivíduos infetados com o vírus da imunodeficiência humana a um risco aumentado de hipertensão, hiperlipidemia e diabetes, torna importante i
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Didong, Gustav, and Ludvig Hansson. "När bostaden blev en allt mer central plats i människans tillvaro : Hur har den svenska bostadsmarknaden påverkats av en händelsebaserad kris – Covid-19?" Thesis, Karlstads universitet, Institutionen för geografi, medier och kommunikation (from 2013), 2021. http://urn.kb.se/resolve?urn=urn:nbn:se:kau:diva-84304.

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Bostadsmarknaden är en marknad i ständig förändring. Flera faktorer såsom populationstillväxt, bostadsideal och kriser påverkar planerandet och genomförandet av nya bostäder och dess utveckling.I samhällelig förändring, utveckling och planering är bostadsmarknaden en stor del. I en fungerande samhällsplanering krävs det att det planeras för hur dagens, och framförallt morgondagens bostäder ska se ut efter människans behov, ideal och ekonomiska möjligheter.  Denna studie undersöker hur bostadsmarknaden har påverkats av en händelsebaserad kris – Covid-19. Teorier och tidigare forskning har tagit
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Hong, Guixiang. "Quelques problèmes en analyse harmonique non commutative." Phd thesis, Université de Franche-Comté, 2012. http://tel.archives-ouvertes.fr/tel-00979472.

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Cette thèse présente quelques résultats de la théorie des probabilités quantiques et de l'analyse harmonique non commutative. Elle est constituée de trois parties. La première partie démontre l'analogue non commutatif de l'inégalité de John-Nirenberg et la décomposition atomique pour les martingales non commutatives. Ces résultats étendent et améliorent ceux qui existent déjà, et correspondent exactement à ceux que l'on connaît dans le cas classique. La deuxième partie est consacrée à l'étude des espaces de Hardy à valeurs opérateurs via la méthode d'ondelettes. Il est montré que les espaces d
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Biggs, Timothy James. "Studies of crystalline organic molecular materials under extreme conditions." Thesis, University of Oxford, 2006. http://ora.ox.ac.uk/objects/uuid:51dae806-2954-4ea7-a3cb-1980ecb53e98.

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This thesis describes investigations into the properties of -phase BEDT-TTF charge transfer salts. Charge transfer salts are mainly studied as they are very useful test beds for fundamental physics due to the tuneability of their proper- ties and ground states. The effects of temperature and pressure on such systems have been studied, as these allow access to a wide range of different states and properties. Transport properties of these systems have been studied to obtain information about the Fermi surface and effective mass, and the effect of deuter- ation and also change of pressure media w
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Al-Moyed, Hanan [Verfasser], Ellen [Akademischer Betreuer] Reisinger, Ellen [Gutachter] Reisinger, et al. "Dual-AAV mediated transfer of full-length otoferlin cDNA into auditory inner hair cells and the effects of different mutations in the OTOF gene on the protein levels and cellular distribution of otoferlin in auditory inner hair cells / Hanan Al-Moyed ; Gutachter: Ellen Reisinger, Nils Brose, Sebastian Kügler, Silvio Rizzoli, Thomas Dresbach, Sven Thoms ; Betreuer: Ellen Reisinger." Göttingen : Niedersächsische Staats- und Universitätsbibliothek Göttingen, 2019. http://d-nb.info/1185757546/34.

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Rotger, Moll Gemma. "Lifelike Humans: Detailed Reconstruction of Expressive Human Faces." Doctoral thesis, Universitat Autònoma de Barcelona, 2021. http://hdl.handle.net/10803/671306.

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El desenvolupament de personatges digitals semblants a les persones és una tasca difícil, ja que els humans estem acostumats a reconèixer-nos entre nosaltres i trobar els CGI poc humanitzats. Per complir els estàndards de les produccions de videojocs i pel·lícules digitals és necessari modelar i animar aquests personatges el més proper als éssers humans. Tanmateix, és una tasca difícil i cara, ja que requereix molts artistes i especialistes treballant en un sol personatge. Per tant, per complir aquests requisits, trobem la creació automàtica de cares detallades mitjançant set
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Zhang, Bo. "Contributions à la microscopie à fluorescence en imagerie biologique : modélisation de la PSF, restauration d'images et détection super-résolutive." Phd thesis, Télécom ParisTech, 2007. http://pastel.archives-ouvertes.fr/pastel-00003273.

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Cette thèse propose trois contributions principales pour l'imagerie en microscopie à fluorescence. (1) Modélisation du système optique : nous avons étudié les approximations gaussiennes des moindres carrés pour les réponses impulsionnelles optiques (PSFs) limitées par la diffraction du microscope en champ large (WFFM), du microscope confocal (LSCM), et du microscope confocal à disque rotatif (DSCM). Les situations paraxiales/non-paraxiales et 2D/3D sont toutes considérées. Les PSFs sont décrites par les intégrales de diffraction de Debye. Nous avons dérivé les paramètres gaussiens optimaux pou
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Scarlato, Michele. "Sicurezza di rete, analisi del traffico e monitoraggio." Master's thesis, Alma Mater Studiorum - Università di Bologna, 2012. http://amslaurea.unibo.it/3223/.

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Il lavoro è stato suddiviso in tre macro-aree. Una prima riguardante un'analisi teorica di come funzionano le intrusioni, di quali software vengono utilizzati per compierle, e di come proteggersi (usando i dispositivi che in termine generico si possono riconoscere come i firewall). Una seconda macro-area che analizza un'intrusione avvenuta dall'esterno verso dei server sensibili di una rete LAN. Questa analisi viene condotta sui file catturati dalle due interfacce di rete configurate in modalità promiscua su una sonda presente nella LAN. Le interfacce sono due per potersi interfacciar
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Sharma, Saurabh, Dewakar Prasad, and Manish Tripathy. "Image Processing using Haar Wavelet transform." Thesis, 2009. http://ethesis.nitrkl.ac.in/1351/1/PROJECT1.docx.

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Wavelet-based image compression provides substantial improvements in picture quality at higher compression ratios. Haar wavelet transform based compression is one of the methods that can be applied for compressing images. An ideal image compression system must yield good quality compressed images with good compression ratio, while maintaining minimal time cost. With Wavelet transform based compression, the quality of compressed images is usually high, and the choice of an ideal compression ratio is difficult to make as it varies depending on the content of the image. Therefore, it is of great
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Lin, Mong-Ju, and 林孟儒. "Fast Intra Prediction with Haar Transform Algorithm." Thesis, 2009. http://ndltd.ncl.edu.tw/handle/88924764931323364328.

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碩士<br>淡江大學<br>資訊工程學系碩士班<br>97<br>H.264/AVC is well-known for its performance on coding efficiency. It has advantages of low bit-rate and high image quality. However, the complexity of H.264/AVC encoder limits applications in the real time video communication. In this study, a fast intra prediction with Haar transform algorithm (FIPHTA) is proposed to simplify the complexity of luma intra prediction. For each luma macroblock (MB), a Haar transform is first executed. By observing LL coefficients, this MB will be classified as I16-MB, I4-MB, or both. An I16-MB indicates that this MB is smooth and
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Tseng, Yu-cheng, and 曾昱誠. "Pedestrian Detection Using Adaboost and Haar Wavelet Transform." Thesis, 2009. http://ndltd.ncl.edu.tw/handle/76240460642543334102.

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碩士<br>國立臺灣科技大學<br>電機工程系<br>97<br>Pattern recognition is a popular issue in area of computer vision . How to recognize objects of interest is always our goal to achieve, and pedestrian detection is even a very hot subject in pattern recognition. In the aspect of surveillance system, there are often successful projects, such as safety surveillance, burglarproof system, traffic safety, etc. The complexity of the environment and every posture of pedestrian are all the problems we will face when detecting pedestrians. Due to these problems we meet, we often can’t completely extract the shape and th
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Yu, Chung-Wei, and 游仲偉. "Fast Motion Estimation Based on the Haar Transform." Thesis, 2002. http://ndltd.ncl.edu.tw/handle/49767841438550134978.

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碩士<br>國立臺灣大學<br>電機工程學研究所<br>90<br>In video coding, the temporal redundancy between consecutive frames can be reduced by motion estimation and motion compensation techniques. Motion estimation plays an important role in reducing the bit rates for transmission and storage of video signals. A fast motion estimation algorithm based on the Haar transform is presented in this thesis to provide better performance than the sum of square error-based full search algorithm in speed while holding the same accuracy as the latter. The Peak Signal to Noise Ratio of the sum of square error-based full search a
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Chien, Wen-Te, and 簡文得. "A Motion Estimation Algorithm base on Haar Wavelet transform." Thesis, 2006. http://ndltd.ncl.edu.tw/handle/25598665905773849790.

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碩士<br>輔仁大學<br>資訊工程學系<br>94<br>This Paper is studied Motion Estimation to search match block between Reference Frame and Current Frame in sequence image which use image Value in different frequency band before BMA(block match algorithm).In other approach propose EAS(Edge- Assisted Algorithm) Algorithm which used Sobel filter to enhance Edge area ,then compare the block between two frame .After fined similarity block , that coordinates will be start point in BMA . this method modify diamond search and block base gradient search successful to avoid fined best match block in local area . Because m
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Yang, Min-Chiao, and 楊閔喬. "Solving Integral And Differential Equations By Haar Wavelet Transform." Thesis, 2011. http://ndltd.ncl.edu.tw/handle/81118110304904867171.

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碩士<br>大同大學<br>應用數學學系(所)<br>99<br>We apply the Haar wavelet methods to solve an ordinary differential equation with initial conditions and a second order stiff differential equation with boundary conditions. The techniques are also used to solve Fredholm, Volterra, Abel, and integro-differential equations. The numerical results show that highly accurate approximations for the integral and differential solutions can be obtained by the Haar wavelet methods.
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Li, Cheng-Hao, and 李承澔. "A Reversible Data Hiding Method Based on Haar Digital Wavelet Transform." Thesis, 2014. http://ndltd.ncl.edu.tw/handle/10710530050316786267.

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碩士<br>國立屏東教育大學<br>資訊科學系碩士班<br>102<br>This thesis presents a reversible data hiding method which provides a high payload and a high stego-image quality. The proposed method transforms a spatial domain cover image into a frequency domain image using the Haar digital wavelet transform (HDWT) method and the high-frequency parts are embedded with secret data. Since the high frequency band incorporates less energy than other bands of an image and the distribution high-frequency of coefficients looks close to Gaussian istribution centralized at zero, it is a natural candidate for embedding secret da
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Chen, Hsiao-Chen, and 陳曉貞. "A Secret Image Sharing Scheme Base on Haar Transform with Visual Cryptography." Thesis, 2016. http://ndltd.ncl.edu.tw/handle/35408826014643751965.

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碩士<br>玄奘大學<br>資訊管理學系碩士班<br>104<br>With more and more developed the information technology industry, so how to safely pass information becomes very important. In recent years, many people discuss on visual cryptography secret sharing methods. The characteristics of visual secret sharing can be seen confidential images directly to the human eye without complex operations. In this study, two based on Haar transform, and (2,2) image sharing method of Visual Cryptography are discussed. One is simple and non-expanded but irreversible, the other is complicated expanded methods but recover fully. Expe
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Lin, Sheng-Zhe, and 林聖哲. "Application of Haar Wavelet Transform to Damage Assessment of the Lathe Tools." Thesis, 2011. http://ndltd.ncl.edu.tw/handle/ba6vh7.

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Sheng, Hsin Chun Tsun, and 辛俊昇. "The face recognition algorithm with the parameters in the HAAR transform domain." Thesis, 2010. http://ndltd.ncl.edu.tw/handle/14581475160183943667.

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碩士<br>中華科技大學<br>電子工程研究所碩士班<br>99<br>This study is concentrate on the face recognition by using linear expansion coefficients of a set of orthogonal two-dimensional HAAR functions as the characteristic parameters. In the First step, the face template is established by superimposing the face pictures which are taken from different locations, different backgrounds and the different light sources. Then the characteristic parameters of the face template are obtained by performing the linear expansion with a set of orthogonal two-dimensional HAAR functions. Because the number of the expansion coeffi
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Shih, Shih-hsin, and 石士欣. "Haar Wavelet Transform and Spatial Filtering Based Defect Detection for TFT-LCD Panel." Thesis, 2009. http://ndltd.ncl.edu.tw/handle/66651780052499691704.

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碩士<br>國立臺灣科技大學<br>電機工程系<br>97<br>The thin film transistor liquid crystal display(TFT-LCD) is one of the most popular flat panel displays that can be found in many products in our daily life such as digital camera, cellular phone, notebook computer, MP3, monitor and TV, etc. A big challenge in the manufacturing of TFT-LCD is to detect the defects such as Mura, SIMI, pinhole, scratch, grain, SIRO-NUKE, particle, etc. Due to the equipment limitation, we test only some defects that includes Mura, SIMI, pinhole, scratch, grain, SIRO-NUKE. In this paper, we have developed a machine vision algorithm
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FITRIYANI, NORMA LATIF, and NORMA LATIF FITRIYANI. "Real-Time Drowsiness Detection System Using Haar Cascade Classifier and Circular Hough Transform." Thesis, 2016. http://ndltd.ncl.edu.tw/handle/12458697716673343700.

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碩士<br>國立臺灣科技大學<br>資訊管理系<br>104<br>Nowadays, technology is growing rapidly followed by modernization. Face detection technology is one technology that has been developed and applied in various sectors such as biometrics recognition systems, retrieval systems, database indexing in digital video, security systems with restricted area access control, video conferencing, and human interaction systems. From various sectors that could be developed, emerging new ideas to apply digital image face detection results further, namely eye detection. Eye detection is a further development of face detection i
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Liao, En-Chi, and 廖恩吉. "The New Segmented-Matrix Algorithm for Haar Discrete Wavelet Transform and Its Implementation." Thesis, 2003. http://ndltd.ncl.edu.tw/handle/29840881457551154543.

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碩士<br>朝陽科技大學<br>資訊工程系碩士班<br>91<br>Discrete wavelet transform (DWT) is an efficient tool for multi-resolution decomposition of signal and image processing applications. Compared with other traditional approaches, it has been shown to be very promising due to both the high compress ratio and the self-similar data structure. The JPEG 2000 standard is also developed based on DWT. Furthermore, DWT has other applications such as Pattern Recognition, Watermarking and Medical Image Analysis etc. Among all DWTs, the Haar discrete wavelet transform (Haar DWT) is the simplest and orthogonal one. However,
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Minka, Ifta, and Ifta Minka. "Numerical Study on Concrete Carbonation with Ultrasonic Wave Propagation Using Haar Wavelet Transform (HWT)." Thesis, 2012. http://ndltd.ncl.edu.tw/handle/y5jge8.

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碩士<br>國立臺灣科技大學<br>營建工程系<br>100<br>Concrete is a widely used material in the world. Concrete as an exterior component must resist to severe aggressive agents and reactive agents. Carbonation of concrete is one type of concrete deteriorations which are able to deliver corrosion of reinforced bars and change the characteristic of concrete material. Generally, the detection of carbonation was conducted using phenolphthalein 1% solution. However, previous experiment showed that this method is destructive and may not be able to indicate the significance of detailed carbonation. Therefore, this paper
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Lin, Yi-Hsing, and 林益興. "Chip Design and Implementation of Imitated Light Field Image Based on Haar Discrete Wavelet Transform." Thesis, 2015. http://ndltd.ncl.edu.tw/handle/yv2xg6.

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碩士<br>國立臺北科技大學<br>電子工程系研究所<br>103<br>In recent years, the development of technology grows very fast. Camera focus system focuses on object not only once. And you can refocus image after you take the first shot. Light Field Camera is the product that you can adjust the focal plane to make clear objects with blur scene. In this research, we take two parts“Object Segmentation” and “Blur Image”to simulate clear region with blur scene at any segmented object. We proposed a Haar Discrete Wavelet Transform to reconstruct the blur images using color image in this method. We get different characterist
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Fan, Cheng-Chung, and 范正忠. "Similarity Search in Time-series Data by HAAR Wavelet Transform--Taking TAIWAN Stock Market for Example." Thesis, 2001. http://ndltd.ncl.edu.tw/handle/77843509749021335582.

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碩士<br>國立臺灣大學<br>資訊管理研究所<br>89<br>Time series data searching and mining has become a growing trend in temporal/time-series database management systems. How to store and retrieve a time-series data becomes an important research topic. To increase the performance, many approaches have been proposed to use Discrete Fourier Transform (DFT) to transform a time series data into a lower-dimensional feature vector. In this thesis, we propose an approach to index time series data by Haar Wavelet Transform (HWT). In the proposed approach, a time series data is transformed to a feature vector b
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Huang, Yuan-Hui, and 黃淵暉. "A Study of Secret Image Sharing Based on Discrete Haar Wavelet Wavelet Transform and Shamir’s Scheme." Thesis, 2011. http://ndltd.ncl.edu.tw/handle/09398202180743230692.

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碩士<br>玄奘大學<br>資訊管理學系碩士班<br>99<br>We proposed a fast secret image sharing based on Haar wavelet transform and Shamir’s method. Many researchers develop secret image sharing method with Shamir’s algorithm in one whole image. We employ discrete Haar wavelet transform to reduce the secret image to its quarter size firstly, i.e. the 1-level LL subband. Then only apply the modified Shamir’s algorithm to this LL subband to generate the shadow images. Lagrange method exploits the enough numbers of the shadow images in the retrieval step. Due to the Shamir’s and Lagrange algorithms consume a lot of tim
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